This chapter discusses networking concepts including:
1) Different types of physical network architectures like Ethernet, wireless networks, telephone networks, and older token ring and FDDI networks.
2) How Windows supports network connections using protocols like TCP/IP, IPX/SPX, NetBEUI, and AppleTalk.
3) How to install a network card, connect to a network, and set up networking in Windows. This includes configuring settings like the computer name, IP address, and network protocols.
4) How to set up and secure a wireless network, including choosing security methods like disabling SSID broadcasting, using data encryption, and setting a firewall.
This document discusses installing and troubleshooting physical networks. It covers:
1) Understanding structured cabling standards and components like patch panels, switches, and horizontal cabling.
2) The process of installing structured cabling which involves mapping runs, pulling cable, making connections, and testing.
3) Network interface cards (NICs) including different types, installation, and using link lights for troubleshooting.
4) Diagnosing and repairing cabling issues through methods like using cable testers, toners, and time domain reflectometers.
Ethernet is a standard for network technologies that share a bus topology and frame format. Early Ethernet implementations transferred data at speeds up to 10Mbps using coaxial cable or twisted pair cabling. 10BaseT networks used twisted pair cabling and hubs to connect computers in a star topology up to 100 meters apart. Switches were later introduced to avoid bandwidth limitations of hubs by creating point-to-point connections between communicating devices using MAC addresses. This increased overall network speed and allowed larger, more complex network topologies.
This document provides an overview of local area networks (LANs) and discusses various LAN topics including common topologies (bus, ring, star), frame transmission methods, the roles of hubs and switches, and how bridges and routers can be used to interconnect multiple LANs. It describes the three main layers (physical, media access control, logical link control) of the IEEE 802 LAN protocol architecture and compares it to the OSI model. Key concepts covered include shared medium access, the functions of bridges and switches, and how layer 2 switches improved upon earlier hub technologies to increase network capacity and performance.
This document discusses securing TCP/IP networks. It covers four main areas of TCP/IP security: encryption, non-repudiation, authentication, and authorization. Encryption involves scrambling data so it can only be unscrambled by the intended recipient. Common encryption standards discussed include asymmetric key algorithms which allow secure key exchange. Secure TCP/IP applications then use these standards and tools to protect data in transit, such as HTTPS which uses SSL/TLS encryption for web traffic security.
The document describes the OSI 7-layer model and how it can be used to understand network communication. It explains each of the 7 layers, including the physical, data link, network, transport, session, presentation and application layers. Examples are provided to illustrate how data moves through each layer of the OSI model when transferring a file between two computers on a network.
This document discusses various technologies used for remote connectivity over wide area networks (WANs). It describes how analog signals were originally used for long-distance telephone calls but lost quality over distance, requiring the development of digital systems. Common digital WAN technologies discussed include SONET, T1, T3, cable modems, DSL, satellite, wireless, and fiber connections. Fiber networks are presented as a technology that telephone providers are implementing to compete with cable companies in providing high-speed internet to homes and businesses.
Topic 1.1 basic concepts of computer networkAtika Zaimi
This document provides an overview of computer networks, including their components, characteristics, and classifications. It defines peer-to-peer and client-server networks, describing their advantages and disadvantages. Various network topologies such as bus, star, ring, and mesh are explained. The document also outlines the key standards organizations that set networking guidelines and lists common network hardware functions. Learners will gain an understanding of fundamental network concepts.
Modern Ethernet standards include 100-megabit Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet. 100-megabit Ethernet standards include 100BaseT and 100BaseFX. Gigabit Ethernet standards include 1000BaseT, 1000BaseCX, 1000BaseSX and 1000BaseLX. 10-Gigabit Ethernet standards include 10GBaseSR, 10GBaseLR and 10GBaseER which use different fiber types and wavelengths, and 10GBaseT which uses copper cabling. Higher speeds require fiber optic cabling and support longer transmission distances.
This document discusses installing and troubleshooting physical networks. It covers:
1) Understanding structured cabling standards and components like patch panels, switches, and horizontal cabling.
2) The process of installing structured cabling which involves mapping runs, pulling cable, making connections, and testing.
3) Network interface cards (NICs) including different types, installation, and using link lights for troubleshooting.
4) Diagnosing and repairing cabling issues through methods like using cable testers, toners, and time domain reflectometers.
Ethernet is a standard for network technologies that share a bus topology and frame format. Early Ethernet implementations transferred data at speeds up to 10Mbps using coaxial cable or twisted pair cabling. 10BaseT networks used twisted pair cabling and hubs to connect computers in a star topology up to 100 meters apart. Switches were later introduced to avoid bandwidth limitations of hubs by creating point-to-point connections between communicating devices using MAC addresses. This increased overall network speed and allowed larger, more complex network topologies.
This document provides an overview of local area networks (LANs) and discusses various LAN topics including common topologies (bus, ring, star), frame transmission methods, the roles of hubs and switches, and how bridges and routers can be used to interconnect multiple LANs. It describes the three main layers (physical, media access control, logical link control) of the IEEE 802 LAN protocol architecture and compares it to the OSI model. Key concepts covered include shared medium access, the functions of bridges and switches, and how layer 2 switches improved upon earlier hub technologies to increase network capacity and performance.
This document discusses securing TCP/IP networks. It covers four main areas of TCP/IP security: encryption, non-repudiation, authentication, and authorization. Encryption involves scrambling data so it can only be unscrambled by the intended recipient. Common encryption standards discussed include asymmetric key algorithms which allow secure key exchange. Secure TCP/IP applications then use these standards and tools to protect data in transit, such as HTTPS which uses SSL/TLS encryption for web traffic security.
The document describes the OSI 7-layer model and how it can be used to understand network communication. It explains each of the 7 layers, including the physical, data link, network, transport, session, presentation and application layers. Examples are provided to illustrate how data moves through each layer of the OSI model when transferring a file between two computers on a network.
This document discusses various technologies used for remote connectivity over wide area networks (WANs). It describes how analog signals were originally used for long-distance telephone calls but lost quality over distance, requiring the development of digital systems. Common digital WAN technologies discussed include SONET, T1, T3, cable modems, DSL, satellite, wireless, and fiber connections. Fiber networks are presented as a technology that telephone providers are implementing to compete with cable companies in providing high-speed internet to homes and businesses.
Topic 1.1 basic concepts of computer networkAtika Zaimi
This document provides an overview of computer networks, including their components, characteristics, and classifications. It defines peer-to-peer and client-server networks, describing their advantages and disadvantages. Various network topologies such as bus, star, ring, and mesh are explained. The document also outlines the key standards organizations that set networking guidelines and lists common network hardware functions. Learners will gain an understanding of fundamental network concepts.
Modern Ethernet standards include 100-megabit Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet. 100-megabit Ethernet standards include 100BaseT and 100BaseFX. Gigabit Ethernet standards include 1000BaseT, 1000BaseCX, 1000BaseSX and 1000BaseLX. 10-Gigabit Ethernet standards include 10GBaseSR, 10GBaseLR and 10GBaseER which use different fiber types and wavelengths, and 10GBaseT which uses copper cabling. Higher speeds require fiber optic cabling and support longer transmission distances.
Networks connect computers and other devices together to allow sharing of resources and data. There are different types of networks including local area networks (LANs) within a building, wide area networks (WANs) spanning geographical locations, and wireless local area networks (WLANs). Networks use various technologies like copper cabling, fiber optic cabling, and wireless to transmit data. They provide benefits such as reduced costs, increased communication and collaboration, and centralized administration.
The document discusses cabling and network topology. It describes different types of network topologies like bus, ring, star, mesh and point-to-point. It also discusses different types of cabling used in networks like coaxial cable, twisted pair cable, fiber optic cable and other cables. It provides details on IEEE standards for networking technologies and cabling.
Network devices such as repeaters, bridges, switches and routers are used to connect and expand networks. Repeaters regenerate signals to expand small networks, while bridges and switches can understand node addresses to segment networks. Routers interconnect different networks and determine optimal routes using network layer addresses and routing protocols. Remote access devices like modems and ADSL modems allow computers to connect to networks over telephone lines by modulating digital signals into analog for transmission.
This document provides instructions for a homework assignment to play the card game FreeCell. Students are assigned a specific game number based on the last two digits of their student ID plus 1000. The document lists out the step-by-step moves required to solve game number 617 as an example. Students must print out each move taken to solve their assigned FreeCell game and turn in the solution.
This document discusses factors to consider when designing a local area network (LAN), including network scale, networking technologies, and physical cables. It provides guidelines for determining the appropriate network scale based on the number of users, physical layout, software needs, and budget. Network scales discussed include peer networks for 2-10 users, single-server networks for 10-50 users, multiserver networks for 50-250 users, high-speed backbone networks for 250-1000 users, and enterprise networks for 1000+ users. Various networking technologies are also outlined such as Ethernet, Fast Ethernet, Token Ring, FDDI, Fiber Channel, ATM, and wireless options. Finally, physical cable types like twisted pair, coax, fiber,
This document provides an overview of wireless networking standards and implementations. It describes how wireless networks use radio waves to communicate and follow the same OSI layers as wired networks. It outlines several IEEE 802.11 wireless standards including 802.11a, b, g, and n. It also discusses how Wi-Fi networks can operate in ad-hoc or infrastructure modes and how CSMA/CA is used to allow multiple devices to share the wireless medium. Finally, it covers common wireless security methods like MAC address filtering, wireless authentication, and data encryption using WEP.
The document provides an overview of networking concepts across different layers of the networking model. It discusses that a network includes interconnected devices like computers, servers, routers and wireless devices. The network core consists of routers that route data between hosts using protocols like IP. Modern data networks are packet switched, where data is divided into packets that are transmitted independently.
This document discusses advanced networking devices and concepts. It covers four logical network topologies: client/server, peer-to-peer, virtual private network (VPN), and virtual local area network (VLAN). It also discusses trunking between switches and quality of service (QoS) policies for prioritizing network traffic. Home routers are highlighted as combining switch and router functionality into one advanced device that can operate at multiple layers of the OSI model.
The document discusses network communication protocols. It describes how protocols establish rules for communication and are organized into protocol suites like TCP/IP. TCP/IP is the most common suite, using IP for addressing, TCP and UDP for transport, and protocols like HTTP, FTP, and SMTP for applications. The document also covers IP addressing fundamentals like classes, subnetting, CIDR, and IPv6.
1) The document discusses the evolution and success of Ethernet technology from its origins at Xerox PARC to its current ubiquitous use in LAN, MAN, and WAN networks.
2) Key factors in Ethernet's success include its support for convergence of technologies, low cost per port and bit, increasing bandwidth capabilities, and ease of provisioning and operations.
3) Market data shows exponential growth in the number of Ethernet ports shipped and revenue from Carrier Ethernet services, with continued growth expected as higher bandwidth technologies like 10G and 100G are adopted.
This document provides an overview of important networking concepts. It discusses data communication components and various transmission mediums including Ethernet, Fast Ethernet, Gigabit Ethernet, LocalTalk, Token Ring, FDDI, ATM, and wireless technologies. It also describes common network hardware such as hubs, switches, bridges, repeaters, routers, and NICs. Finally, it covers common network media including twisted pair, coaxial, fiber optic, and wireless and discusses specifications for Ethernet and optical fiber.
This document provides an overview of various networking components and devices, including hubs, switches, bridges, routers, gateways, and more. It describes the purpose and basic functions of each device. Hubs broadcast data to all ports, while switches only send data to the destination port, providing better performance. Switches can also operate in full-duplex mode for double the data throughput of half-duplex connections. The document provides details on ports, cables, speeds, and considerations for working with hubs and switches.
This document provides an overview of wide area network (WAN) technologies and routing. It defines routing as managing data flow between network segments and hosts. Routers use routing tables and IP addresses to determine the path for sending data. Dynamic routing protocols like RIP and OSPF dynamically determine routes and update them when network changes occur. Common WAN technologies discussed include Frame Relay, X.25, ATM, SONET, FDDI, and various types of DSL. The document also covers topics like interior gateway protocols, exterior gateway protocols, virtual circuits, and leased lines.
This lecture describes wireless communication networks, including their advantages and disadvantages, standards and operation, and setup. Wireless devices communicate using radio frequencies without cabling. A typical home wireless setup involves computers with wireless network interface cards, a wireless router to broadcast the network signal, and configuring wireless security like WPA2. The lecture also outlines the major components of network hardware, including networked devices, network interface cards, switches, routers, servers, and devices to protect networks from power issues.
Topic 2.1 network communication using osi model part1Atika Zaimi
The document discusses the seven-layer OSI model, which provides standards for how network operating systems communicate. It defines each of the seven layers - physical, data link, network, transport, session, presentation, and application - and their functions in transmitting data packets from one host to another. The physical layer transmits raw bits, while each higher layer performs more complex functions like error checking, routing, and data formatting until the data reaches the application layer.
LAN Switching and Wireless: Ch7 - Basic Wireless Concepts and ConfigurationAbdelkhalik Mosa
Chapter 7 : CCNA Cisco Academy: LAN Switching and Wireless.
This chapter discusses the basic wireless concepts:
- Comparison between WLAN and LAN.
- The difference between wireless PAN, LAN, MAN and WAN.
- Infrared and Radio Frequency (RF).
- Benefits and limitations of the wireless technology.
- Difference between licensed and unlicensed bands.
- Wi-Fi and the key organizations influencing WLAN standards.
- Wireless infrastructure components which are the wireless NIC, Wireless Access Points and wireless routers.
- The Hidden node problem.
- Configuration parameters SSID, network modes and channels.
- Wireless 802.11 typologies: Ad hoc (IBSS), BSS and ESS.
Client and Access Point Association: Beacons, probe, authenticate and associate.
- Threats to Wireless Security- Unauthorized Access: War Drivers, Hackers and employees.
- Man-in-the-Middle Attacks, Denial of Service.
- Wireless Security Protocol Overview: open authentication, WEP authentication.
- Encryption – TKIP and AES.
- Configuring the Wireless Access Point
- Configuring security: personal and enterprise (AAA and EAP ).
- WLAN Troubleshooting: Incorrect Channel Settings, Solving RF Interference, Access Point Misplacement and Authentication and Encryption
This document defines network protocols and discusses TCP/IP. It defines a protocol as a set of rules that govern communication between connected computers. The main types of network protocols listed are TCP/IP, IPX/SPX, AppleTalk, and NetBIOS/NetBEUI. TCP/IP is described as the common protocol for Internet communication, consisting of TCP, UDP, IP, ICMP, and ARP which handle transmission control, user datagrams, internet addressing, error messages, and address resolution respectively.
This document provides an overview of common TCP/IP tools including the command prompt, ipconfig, ping, and tracert for basic network testing and troubleshooting. More advanced tools covered are netstat, nbtstat, pathping, nslookup, netsh, route, net, and telnet. The objectives are to understand basic and advanced TCP/IP commands and their functionality for working with TCP/IP networks. Additional resources listed include books, instructor-led courses, and exams for further learning.
This document provides an overview of network topologies and technologies. It describes common physical topologies including bus, star, ring, and point-to-point. Logical topologies determine how data travels between devices and can mimic the physical topology or operate differently using switches. Popular network technologies are also examined, particularly Ethernet, wireless LANs, and Token Ring. Ethernet remains the most widely used LAN technology and comes in various speeds and media types.
This document provides an overview of implementation support for human-computer interaction, including programming tools, windowing systems, interaction toolkits, and user interface management systems.
It discusses how these tools affect programmers and describes some of their key elements and roles. Windowing systems provide device independence, resource sharing, and simultaneity of user tasks. Common windowing system architectures include each application managing its own processes, management within the operating system kernel, and a separate application for management.
User interface toolkits and management systems aim to promote consistency, reusability, and multiple interfaces. Toolkits provide programming with interaction objects, while user interface management systems separate application semantics from presentation.
Networks connect computers and other devices together to allow sharing of resources and data. There are different types of networks including local area networks (LANs) within a building, wide area networks (WANs) spanning geographical locations, and wireless local area networks (WLANs). Networks use various technologies like copper cabling, fiber optic cabling, and wireless to transmit data. They provide benefits such as reduced costs, increased communication and collaboration, and centralized administration.
The document discusses cabling and network topology. It describes different types of network topologies like bus, ring, star, mesh and point-to-point. It also discusses different types of cabling used in networks like coaxial cable, twisted pair cable, fiber optic cable and other cables. It provides details on IEEE standards for networking technologies and cabling.
Network devices such as repeaters, bridges, switches and routers are used to connect and expand networks. Repeaters regenerate signals to expand small networks, while bridges and switches can understand node addresses to segment networks. Routers interconnect different networks and determine optimal routes using network layer addresses and routing protocols. Remote access devices like modems and ADSL modems allow computers to connect to networks over telephone lines by modulating digital signals into analog for transmission.
This document provides instructions for a homework assignment to play the card game FreeCell. Students are assigned a specific game number based on the last two digits of their student ID plus 1000. The document lists out the step-by-step moves required to solve game number 617 as an example. Students must print out each move taken to solve their assigned FreeCell game and turn in the solution.
This document discusses factors to consider when designing a local area network (LAN), including network scale, networking technologies, and physical cables. It provides guidelines for determining the appropriate network scale based on the number of users, physical layout, software needs, and budget. Network scales discussed include peer networks for 2-10 users, single-server networks for 10-50 users, multiserver networks for 50-250 users, high-speed backbone networks for 250-1000 users, and enterprise networks for 1000+ users. Various networking technologies are also outlined such as Ethernet, Fast Ethernet, Token Ring, FDDI, Fiber Channel, ATM, and wireless options. Finally, physical cable types like twisted pair, coax, fiber,
This document provides an overview of wireless networking standards and implementations. It describes how wireless networks use radio waves to communicate and follow the same OSI layers as wired networks. It outlines several IEEE 802.11 wireless standards including 802.11a, b, g, and n. It also discusses how Wi-Fi networks can operate in ad-hoc or infrastructure modes and how CSMA/CA is used to allow multiple devices to share the wireless medium. Finally, it covers common wireless security methods like MAC address filtering, wireless authentication, and data encryption using WEP.
The document provides an overview of networking concepts across different layers of the networking model. It discusses that a network includes interconnected devices like computers, servers, routers and wireless devices. The network core consists of routers that route data between hosts using protocols like IP. Modern data networks are packet switched, where data is divided into packets that are transmitted independently.
This document discusses advanced networking devices and concepts. It covers four logical network topologies: client/server, peer-to-peer, virtual private network (VPN), and virtual local area network (VLAN). It also discusses trunking between switches and quality of service (QoS) policies for prioritizing network traffic. Home routers are highlighted as combining switch and router functionality into one advanced device that can operate at multiple layers of the OSI model.
The document discusses network communication protocols. It describes how protocols establish rules for communication and are organized into protocol suites like TCP/IP. TCP/IP is the most common suite, using IP for addressing, TCP and UDP for transport, and protocols like HTTP, FTP, and SMTP for applications. The document also covers IP addressing fundamentals like classes, subnetting, CIDR, and IPv6.
1) The document discusses the evolution and success of Ethernet technology from its origins at Xerox PARC to its current ubiquitous use in LAN, MAN, and WAN networks.
2) Key factors in Ethernet's success include its support for convergence of technologies, low cost per port and bit, increasing bandwidth capabilities, and ease of provisioning and operations.
3) Market data shows exponential growth in the number of Ethernet ports shipped and revenue from Carrier Ethernet services, with continued growth expected as higher bandwidth technologies like 10G and 100G are adopted.
This document provides an overview of important networking concepts. It discusses data communication components and various transmission mediums including Ethernet, Fast Ethernet, Gigabit Ethernet, LocalTalk, Token Ring, FDDI, ATM, and wireless technologies. It also describes common network hardware such as hubs, switches, bridges, repeaters, routers, and NICs. Finally, it covers common network media including twisted pair, coaxial, fiber optic, and wireless and discusses specifications for Ethernet and optical fiber.
This document provides an overview of various networking components and devices, including hubs, switches, bridges, routers, gateways, and more. It describes the purpose and basic functions of each device. Hubs broadcast data to all ports, while switches only send data to the destination port, providing better performance. Switches can also operate in full-duplex mode for double the data throughput of half-duplex connections. The document provides details on ports, cables, speeds, and considerations for working with hubs and switches.
This document provides an overview of wide area network (WAN) technologies and routing. It defines routing as managing data flow between network segments and hosts. Routers use routing tables and IP addresses to determine the path for sending data. Dynamic routing protocols like RIP and OSPF dynamically determine routes and update them when network changes occur. Common WAN technologies discussed include Frame Relay, X.25, ATM, SONET, FDDI, and various types of DSL. The document also covers topics like interior gateway protocols, exterior gateway protocols, virtual circuits, and leased lines.
This lecture describes wireless communication networks, including their advantages and disadvantages, standards and operation, and setup. Wireless devices communicate using radio frequencies without cabling. A typical home wireless setup involves computers with wireless network interface cards, a wireless router to broadcast the network signal, and configuring wireless security like WPA2. The lecture also outlines the major components of network hardware, including networked devices, network interface cards, switches, routers, servers, and devices to protect networks from power issues.
Topic 2.1 network communication using osi model part1Atika Zaimi
The document discusses the seven-layer OSI model, which provides standards for how network operating systems communicate. It defines each of the seven layers - physical, data link, network, transport, session, presentation, and application - and their functions in transmitting data packets from one host to another. The physical layer transmits raw bits, while each higher layer performs more complex functions like error checking, routing, and data formatting until the data reaches the application layer.
LAN Switching and Wireless: Ch7 - Basic Wireless Concepts and ConfigurationAbdelkhalik Mosa
Chapter 7 : CCNA Cisco Academy: LAN Switching and Wireless.
This chapter discusses the basic wireless concepts:
- Comparison between WLAN and LAN.
- The difference between wireless PAN, LAN, MAN and WAN.
- Infrared and Radio Frequency (RF).
- Benefits and limitations of the wireless technology.
- Difference between licensed and unlicensed bands.
- Wi-Fi and the key organizations influencing WLAN standards.
- Wireless infrastructure components which are the wireless NIC, Wireless Access Points and wireless routers.
- The Hidden node problem.
- Configuration parameters SSID, network modes and channels.
- Wireless 802.11 typologies: Ad hoc (IBSS), BSS and ESS.
Client and Access Point Association: Beacons, probe, authenticate and associate.
- Threats to Wireless Security- Unauthorized Access: War Drivers, Hackers and employees.
- Man-in-the-Middle Attacks, Denial of Service.
- Wireless Security Protocol Overview: open authentication, WEP authentication.
- Encryption – TKIP and AES.
- Configuring the Wireless Access Point
- Configuring security: personal and enterprise (AAA and EAP ).
- WLAN Troubleshooting: Incorrect Channel Settings, Solving RF Interference, Access Point Misplacement and Authentication and Encryption
This document defines network protocols and discusses TCP/IP. It defines a protocol as a set of rules that govern communication between connected computers. The main types of network protocols listed are TCP/IP, IPX/SPX, AppleTalk, and NetBIOS/NetBEUI. TCP/IP is described as the common protocol for Internet communication, consisting of TCP, UDP, IP, ICMP, and ARP which handle transmission control, user datagrams, internet addressing, error messages, and address resolution respectively.
This document provides an overview of common TCP/IP tools including the command prompt, ipconfig, ping, and tracert for basic network testing and troubleshooting. More advanced tools covered are netstat, nbtstat, pathping, nslookup, netsh, route, net, and telnet. The objectives are to understand basic and advanced TCP/IP commands and their functionality for working with TCP/IP networks. Additional resources listed include books, instructor-led courses, and exams for further learning.
This document provides an overview of network topologies and technologies. It describes common physical topologies including bus, star, ring, and point-to-point. Logical topologies determine how data travels between devices and can mimic the physical topology or operate differently using switches. Popular network technologies are also examined, particularly Ethernet, wireless LANs, and Token Ring. Ethernet remains the most widely used LAN technology and comes in various speeds and media types.
This document provides an overview of implementation support for human-computer interaction, including programming tools, windowing systems, interaction toolkits, and user interface management systems.
It discusses how these tools affect programmers and describes some of their key elements and roles. Windowing systems provide device independence, resource sharing, and simultaneity of user tasks. Common windowing system architectures include each application managing its own processes, management within the operating system kernel, and a separate application for management.
User interface toolkits and management systems aim to promote consistency, reusability, and multiple interfaces. Toolkits provide programming with interaction objects, while user interface management systems separate application semantics from presentation.
The document discusses communication in interpersonal and organizational contexts. It describes how communication allows people to share attitudes, values, emotions, and needs. Effective communication in organizations requires that people be able to freely express themselves, coordinate efforts, focus on customer needs, and articulate their own needs. The choice of communication medium depends on factors like message content, need for feedback, number of receivers, and available technologies. Barriers to communication include overload, lack of trust, inappropriate hierarchies, and electronic noise.
Dokumen tersebut membahas tentang sifat-sifat operasi matriks, matriks identitas, invers matriks, transpose matriks, dan matriks elementer. Secara ringkas, dokumen tersebut menjelaskan definisi dan contoh-contoh penerapan aturan-aturan dasar dalam operasi matriks.
International management involves managing resources across national boundaries and adapting management principles to foreign competition and environments. Companies go international for proactive reasons like accessing new markets and customers or for reactive reasons like avoiding trade barriers. There are two types of multinational companies - those that standardize products for many countries and those that customize products for specific local markets. Managing internationally requires considering various external environments including economic, political, sociocultural, legal, and technological factors.
The document describes an assignment for a system dynamics course. Students are asked to build models of simple feedback systems and practice using the Vensim software. They are instructed to work in groups of three. The assignment includes modeling a goal-seeking process to improve quality, and students are asked to model defect reduction in a semiconductor fabrication process as it implemented total quality management practices between 1987-1991.
The document discusses networking essentials, covering hardware devices used for networking like switches and routers, networking technologies such as Ethernet, Wi-Fi, and broadband options, protocols like TCP/IP, and tools for configuring and troubleshooting networks including Ping, Ipconfig, and Telnet.
This chapter discusses network connectivity and operating systems. It explains networking basics such as topologies, hardware, protocols, and how devices connect to networks. It describes client and server operating systems and their roles. It also covers common network protocols like TCP/IP, Ethernet, wireless technologies, and how they are configured in operating systems. Network devices, addressing, and automatic configuration using DHCP are also summarized.
This document provides an overview of networking hardware and technologies used to build local networks and connect to the internet. It describes different network types including personal area networks, local area networks, wireless LANs, metropolitan area networks, and wide area networks. Common internet connection technologies like cable internet, DSL, satellite, fiber, and cellular networks are also discussed. The document also covers networking hardware such as switches, hubs, bridges, wireless access points, cables, connectors, and tools used for setup and troubleshooting.
IEEE 802 standards define networking protocols including Ethernet. Ethernet uses CSMA/CD to manage network access and avoid collisions. Common Ethernet cabling types include 10Base5, 10Base2, 10Base-T, and 10Base-F, which use different media like coaxial cable, twisted pair, or fiber and have varying maximum distances. Devices connect to a hub or bridge to extend a local area network.
This document provides an overview of networking concepts and terms. It defines networking, LANs and WANs, server-based and peer-to-peer networks, network topologies including star, ring and bus, common network cabling types, Ethernet issues, layers of the internet, networking protocols, network addressing using MAC and IP addresses, and wireless networking basics. The document aims to explain core networking fundamentals and technologies.
- The document discusses computer networks and networking concepts such as goals, applications, reference models, hardware, software, protocols, and switching techniques.
- It covers topics like OSI and TCP/IP models, LAN, MAN and WAN network types and topologies, protocol hierarchies, connection-oriented and connectionless services, and circuit switching, message switching, and packet switching.
- The document also discusses peer-to-peer and client-server network models, and different network topologies like bus, star, and ring.
This document provides an introduction to computer networking concepts. It begins with defining a computer network as consisting of two or more connected computers that can communicate and share resources. The main advantages of networking are sharing information, software/hardware, and centralized administration. There are two main types of networks: peer-to-peer and client-server. Local, metropolitan, and wide area networks are also introduced based on geographical range. Common network topologies like bus, ring, and star are described along with their advantages and disadvantages. Standards organizations that set networking standards are listed. Finally, the basic components and devices used for data communication are outlined.
This course introduces students to issues in IT infrastructu.docxchristalgrieg
This course introduces students to issues in IT infrastructure.The course will cover computer and system architecture, and communication networks:
Infrastructure architecture
Organizational structure
Security
Metrics
Capacity PlanningThe course also focuses on the best practices employed in IT Infrastructure management, resource estimating, compliance and business continuity.
Course Description
*
7-*
IT INFRASTRUCTURE OVERVIEW
IT infrastructure - includes the hardware, software, and telecommunications equipment that, when combined, provide the underlying foundation to support the organization’s goalsClient/server networks, the Internet, and n-tier infrastructures are central to an organization’s IT infrastructureThe three primary components of any IT infrastructure include:
Client/server networks
Internet
N-tier infrastructures
Computer Networks:Arguably, the greatest advancement in technology and communication over the past 20 years has been the development and advancement of the “computer network”. From emailing a friend to on-line bill paying to downloading data off the Internet to e-commerce, networking has made our world much smaller and changed the way we communicate forever.
What is Network: a system containing any combination of computers, computer terminals, printers, audio or visual display devices, or telephones interconnected by telecommunication equipment or cables: used to transmit or receive information.
*
The Network Diagram
The Internet
Other LANS
Firewall
Router
Fiber Optic Network Cable
Server
PC
Wireless Network
Wired Network
Switch
*
I wanted to present this diagram to help the viewer visually understand how a computer network was set-up. I linked each component to the same text links throughout the project.
Some network appse-mailwebtext messagingremote loginP2P file sharingmulti-user network gamesstreaming stored video (YouTube, Hulu, Netflix)
voice over IP (e.g., Skype)real-time video conferencingsocial networkingsearch……
*
Types of Networks
LAN Local Area Network
WAN Wide Area Network
MAN Metropolitan Area Network
PAN Personal Area Network
SAN Storage Area Network
GAN Global Area Network
*
I used this slide as a Introduction to the different types of networks. I tried to let the graphics do the talking on this slide. I elaborated more on each network type on subsequent slides.
Local Area NetworkA Local Area Network spans a relatively small areaLANs are usually confined to one building or a group of buildings Data travel between network devices via network cablesThe most common type of Local Area Network is called Ethernet
*
I kept the graphic the same as the previous graphic representing the Local Area Network in hopes of creating a degree familiarity. I also include some basic facts about it.
Wide Area NetworkA Wide Area Network exist over a large geographical area Data travels through telephone or cable lines across networks Usually requires a Mod ...
This document provides an overview of networking concepts including the basic components of a network, common network topologies, network devices, network addressing using IP addresses and subnet masks, network models like OSI and TCP/IP, and basic network communication. Key topics covered include LANs, WANs, Ethernet, wireless networks, routers, switches, TCP, UDP, ports, MAC addresses, and the layers of the OSI and TCP/IP models.
This document discusses wireless internet and wireless local area networks (WLANs). It provides an introduction to wireless networking, describing how WLANs use radio waves to connect devices without cables. It discusses technologies like IEEE 802.11 and protocols used for voice and video services over WLANs. The document also covers topics like wireless LAN architecture, wireless internet protocol, TCP/IP optimization for wireless networks, wireless security, and defines hotspots as publicly available Wi-Fi access points.
The document provides an overview of wired and wireless telecommunication and network technologies. It discusses wired technologies such as T-carrier protocols, SONET, Frame Relay, ATM, DSL, MPLS and various wired network technologies including Ethernet, network cabling standards, switches, routers and topologies. It also discusses wireless technologies such as CDMA2000, GPRS, EDGE, UMTS, WiMAX, Bluetooth, IrDA and network protocols including the OSI model and TCP/IP model.
The document provides an overview of wired and wireless telecommunication and network technologies. It discusses wired technologies such as T-carrier protocols, SONET, Frame Relay, ATM, DSL, MPLS and various wired network technologies including Ethernet, network cabling standards, switches, routers and topologies. It also discusses wireless technologies such as CDMA2000, GPRS, EDGE, UMTS, WiMAX, Bluetooth, IrDA and network protocols including the OSI model and TCP/IP model.
The document discusses several network topologies including LANs, WANs, bus, ring, star, mesh and wireless. It provides details on the physical and logical layout of each topology, their advantages and disadvantages. Key standards setting bodies like IEEE and their standards for different network types are also covered. The document provides a comprehensive overview of traditional and common network topologies.
Ethernet is a widely used local area network (LAN) technology. It uses bus, star, ring, or tree topologies to transmit data via coaxial cable or twisted pair wires. Devices connect to the cable and compete for access using Carrier Sense Multiple Access with Collision Detection (CSMA/CD). IEEE standards define Ethernet specifications, including standards for Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet transmission speeds. Wireless LANs also use Ethernet standards to transmit data over radio frequencies instead of cables.
This document summarizes different types of computer networks and their topologies. It describes local area networks (LANs) which connect computers in a small area like a building, and wide area networks (WANs) that connect LANs over longer distances. Common network topologies are also outlined, including bus, star, ring and tree configurations. The presentation provides examples of each network type and discusses their advantages and disadvantages.
Computer networks connect autonomous computers located anywhere. A LAN connects computers in a small area like a room or building using high speed. A MAN operates in a city and a WAN spans large distances like countries. Networks allow resource, information and communication sharing. Common topologies include bus, star, ring and mesh, with star being most common. Key components are physical media, devices like hubs, switches and routers, computers and networking software. TCP/IP is a common networking protocol and applications include email, web, commerce, telephony and conferencing.
The document discusses various network technologies, categorizing them based on geographical coverage, users, transmission medium, mobility, and link configuration. It covers wired access network technologies like Ethernet, telephone networks using copper or fiber, and digital subscriber line technologies. Core network technologies discussed include digital circuits using telephone networks, packet switching networks, and IP networks. Wireless network technologies for both access and core networks are also mentioned.
The document provides an introduction to computer networking concepts. It defines a network as consisting of two or more connected computers that can share resources and information. Networks allow for sharing of hardware, software, data, and centralized administration. There are different types of networks classified by transmission medium (wired vs wireless), size (LAN vs WAN), management method (peer-to-peer vs client/server), and topology (bus, star, ring). Common transmission media include twisted-pair cables, coaxial cables, and fiber-optic cables. LANs are small, local networks while WANs connect multiple LANs over longer distances using technologies like broadband. Client/server networks have dedicated server computers that provide resources to
The document provides an introduction to computer networking concepts. It defines a network as consisting of two or more connected computers that can share resources and information. Networks allow for sharing of hardware, software, files and administration. There are different types of networks classified by transmission medium (wired vs wireless), size (LAN vs WAN), management method (peer-to-peer vs client/server), and topology (bus, star, ring). Common transmission media include twisted-pair cables, coaxial cables, and fiber-optic cables. LANs are small, local networks while WANs connect multiple LANs over longer distances using technologies like broadband. Peer-to-peer networks have no hierarchy while client/server networks
The document provides an introduction to computer networking concepts. It defines a network as consisting of two or more connected computers that can share resources and information. Networks allow for sharing of hardware, software, files and administration. There are different types of networks classified by transmission medium (wired vs wireless), size (LAN vs WAN), management method (peer-to-peer vs client/server), and topology (bus, star, ring). Common transmission media include twisted-pair cables, coaxial cables, and fiber-optic cables. LANs are small, local networks while WANs connect multiple LANs over longer distances using technologies like broadband. Peer-to-peer networks have no hierarchy while client/server networks
This case study analyzes Mizuho Bank's green project financing of a natural gas development project in Indonesia. Mizuho adopted the Equator Principles to fully assess the social and environmental risks. It required the borrower to mitigate risks and committed to environmental protection in the financing contract. More broadly, Mizuho promotes green credit, innovates green financing products, and supports carbon trading to improve the environment. It provides lower interest financing to green projects and assesses customer environmental performance to encourage sustainability.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Buku ini membahas pengantar pemodelan sistem dinamik menggunakan perangkat lunak Vensim PLE, mulai dari pengenalan Vensim, cara menginstalasi dan menggunakan Vensim PLE, membuat diagram simpal kausal dan diagram stock dan flow, menganalisis model, dan contoh-contoh penerapan Vensim untuk memodelkan berbagai sistem dinamik sederhana."
Mata kuliah ini membahas latar belakang dan manfaat teknik-teknik manajemen. Teknik-teknik manajemen berkembang seiring sejarah ilmu manajemen sejak abad ke-18 hingga saat ini. Pionir ilmu manajemen modern adalah Robert Owen dan Charles Babbage yang meletakkan dasar pentingnya sumber daya manusia dan efisiensi dalam organisasi. Mata kuliah ini akan memperkenalkan berbagai teknik analisis manajemen untuk memecah
The document discusses the benefits of exercise for both physical and mental health. Regular exercise can improve cardiovascular health, reduce stress and anxiety, boost mood, and reduce the risk of diseases. It recommends that adults get at least 150 minutes of moderate exercise or 75 minutes of vigorous exercise per week to gain these benefits.
Modul ini membahas tentang pelatihan berbasis kompetensi untuk memperbaiki power supply. Modul ini menjelaskan konsep dasar pelatihan berbasis kompetensi, penjelasan modul, pengakuan kompetensi terkini, dan pengertian istilah terkait. Modul ini juga menjelaskan standar kompetensi untuk memperbaiki power supply dan sumber-sumber yang dibutuhkan untuk mencapai kompetensi tersebut.
Dokumen tersebut merupakan modul pelatihan berbasis kompetensi untuk memperbaiki CD-RW yang mencakup pengertian pelatihan berbasis kompetensi, standar kompetensi yang dibutuhkan, dan langkah-langkah memperbaiki CD-RW.
Dokumen tersebut membahas tentang materi pelatihan berbasis kompetensi untuk melakukan backup data dan sistem. Materi pelatihan ini mencakup pengertian konsep dasar pelatihan berbasis kompetensi, penjelasan modul pelatihan, standar kompetensi yang dipelajari, dan prosedur backup data dan sistem.
Modul ini membahas tentang melakukan restore operating system. Modul ini menjelaskan konsep pelatihan berbasis kompetensi, penjelasan modul, standar kompetensi yang mencakup peta paket pelatihan dan pengertian unit standar kompetensi, serta materi pelatihan untuk melakukan restore operating system.
Dokumen ini berisi modul pelatihan tentang memperbaiki printer. Modul ini menjelaskan konsep dasar pelatihan berbasis kompetensi, penjelasan modul, pengakuan kompetensi terkini, pengertian istilah yang digunakan, standar kompetensi yang mencakup peta paket pelatihan dan unit standar kompetensi, serta materi pelatihan untuk unit kompetensi memperbaiki printer.
The document discusses management ethics and social responsibility. It covers two broad categories of ethical theories - consequential and non-consequential principles. It also addresses factors like time pressure and individual/organizational factors that influence ethical behavior. The document provides checklists and steps for encouraging ethical conduct and discouraging unethical behavior in organizations.
This document discusses strategies for career success. It emphasizes adopting a broad view of one's career that includes self-assessment, exploring opportunities, establishing objectives and timelines, and regularly evaluating progress. It also discusses important elements like developing skills and networks, understanding organizational politics and power structures, and managing stress. The key to career success involves proactive planning and ongoing adaptation to changes in the workplace.
The document discusses information management systems and their importance in organizations. It covers topics such as the definition of information technology, characteristics of useful information, the role of management information systems in planning, organizing, controlling operations and using resources effectively. It also summarizes the basic functions of computer information systems, including computer operations, system programming, data management, and end-user computing. Lastly, it outlines some of the challenges in managing information systems, such as overcoming resistance to change and enabling employees to use new systems.
Operations management involves planning and controlling the processes that transform inputs into outputs. Key aspects of operations management include operations strategy, facilities layout and location, capacity planning, production planning and control, and quality management. The overall goal is to efficiently manage resources, processes, and outputs.
The document discusses various control techniques used in marketing and finance. It describes marketing research, test marketing, marketing ratios, and stockage used to control marketing activities. It also explains key components of a balance sheet and income statement, types of budgets and audits used for financial control, and budgeting approaches like top-down, bottom-up, and zero-based budgeting.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Full-RAG: A modern architecture for hyper-personalizationZilliz
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Infrastructure Challenges in Scaling RAG with Custom AI modelsZilliz
Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
AI 101: An Introduction to the Basics and Impact of Artificial IntelligenceIndexBug
Imagine a world where machines not only perform tasks but also learn, adapt, and make decisions. This is the promise of Artificial Intelligence (AI), a technology that's not just enhancing our lives but revolutionizing entire industries.
1. A+ Guide to Hardware, 4e
Chapter 10
PCs on a Network
2. Objectives
• Learn about different types of physical network
architectures
• Learn how networking works with Windows
• Learn how to install a network card and connect to a
network
• Learn how to set up and secure a wireless network
• Learn about troubleshooting tools and tips for
network connections
A+ Guide to Hardware, 4e 2
3. Introduction
• Topics covered in this chapter:
– Technologies used to build networks
– How Windows supports a network connection
– How to connect a computer to a network
– How switches and routers interface networks
– How to setup and secure a wireless network
– How to troubleshoot a network connection
A+ Guide to Hardware, 4e 3
4. Physical Network Architectures
• Elements providing an overview of networks
– The different sizes of networks
– The different technologies used by networks
– Some networking terms
• Network types commonly encountered
– Ethernet
– Wireless networks
– Telephone networks
– Mostly outdated token ring and FDDI networks
A+ Guide to Hardware, 4e 4
5. Sizes of Networks
• A network links two or more computers
• PAN (personal area network)
– Consists of personal devices at close range
• LAN (local area network)
– Covers a small local area such as a home, or office
• MAN (metropolitan area network)
– Covers a large campus or city
• WAN (wide area network)
– Covers a large geographical area; e.g., the Internet
A+ Guide to Hardware, 4e 5
6. Networking Technologies
• Factors driving network evolution:
– The type of data the network is intended to support
– The data capacity on the network
– How a network is to fit among other networks
• Bandwidth (data throughput or line speed):
– Analog systems: measured in cycles/sec (hertz or Hz)
– Digital systems: measured in bps, Kbps, or Mbps
• As networks grow, the need for bandwidth grows
A+ Guide to Hardware, 4e 6
7. Additional Terms Used in Networking
• Node (host): one device on a network; e.g., server
• Network adapter: interfaces a PC with a network
– Network interface card (NIC): fits in a PCI slot
• Adapter (MAC, physical, or hardware) address:
– 48-bit (6-byte) id number hard-coded on card
– Example: 00-0C-6E-4E-AB-A5
• Network protocols: rules of communication
• Packets (datagrams or frames)
– Basic unit of data transmitted on a network
A+ Guide to Hardware, 4e 7
8. Figure 10-1 Ethernet network card showing its MAC address
A+ Guide to Hardware, 4e 8
9. Introducing Ethernet
• Ethernet types (categorized by speed):
– 10-Mbps Ethernet
– 100-Mbps or Fast Ethernet
– 1000-Mbps or Gigabit Ethernet
– 10-Gigabit Ethernet
• Types of cabling used:
– Two kinds of twisted-pair
• Unshielded twisted pair (UTP): four pairs of twisted wire
• Shielded twisted pair (STP): protected from EMI
– Coaxial cable: single copper wire with braided shield
– Fiber-optic: glass strands inside protective tubing
A+ Guide to Hardware, 4e 9
11. Figure 10-4 Fiber-optic cables contain a glass core for
transmitting light
A+ Guide to Hardware, 4e 11
12. Introducing Ethernet (continued)
• Topology: arrangement of nodes in a network
• Bus topology: connects all nodes with a line (no hub)
• Star topology
– Connects nodes to central hub (or switch)
– The hub broadcasts a data packet to every device
– Switch uses a table to route packet to receiving device
• Scale networks by adding switches
• Star bus topology:
– Multiple switches form a bus network
– Nodes connected to each switch form a star
A+ Guide to Hardware, 4e 12
13. Figure 10-6 Nodes on an Ethernet network can be connected to one
another in a star or bus formation
A+ Guide to Hardware, 4e 13
14. Figure 10-10 A star bus network uses more than one switch
A+ Guide to Hardware, 4e 14
15. Introducing Ethernet (continued)
• Attenuation: the weakening of a transmitted signal
• Repeater: device used to amplify a signal in a LAN
• Amplifier repeater: simply amplifies incoming signal
• Signal-regenerating repeater
– Reads and copies the signal (without noise)
– Transmits an exact duplicate of the original
• Ethernet uses a signal-regenerating repeater
– A switch or hub can act as the repeater
A+ Guide to Hardware, 4e 15
16. Figure 10-14 A repeater on a network restores the clarity of the signal,
which degrades over a distance because of attenuation
A+ Guide to Hardware, 4e 16
17. Wireless Networks
• Use radio waves or infrared light to connect PCs
• Popular in places where cables are difficult to install
• 802.11wireless (Wi-Fi or Wireless Fidelity)
– Types: 802.11g (most popular), 802.11b, 802.11a
– Two new standards: 802.11k and 802.11r
– Ad hoc mode: directly links two wireless devices
– Access point (AP): connects wireless device to LAN
• WiMAX (802.16 Wireless/802.16d and 802.16e)
– Used in public hot spots and as a last mile solution
• Bluetooth: short range standard; e.g., optical mouse
A+ Guide to Hardware, 4e 17
18. Figure 10-16 Nodes on a wireless LAN connect to a cabled network by
way of an access point
A+ Guide to Hardware, 4e 18
19. Telephone Networks
• Plain old telephone service (POTS)
– Switching creates closed circuits between phones
• VoIP (Voice over Internet Protocol)
– Uses packets of data to communicate
• Cellular WAN
– Made up cells created by base stations
• Cellular WAN standards
– GSM (Global System for Mobile Communications)
– CDMA (Code Division Multiple Access)
– TDMA (Time Division Multiple Access)
A+ Guide to Hardware, 4e 19
20. Figure 10-20 A cellular WAN is made up of many cells
that provide coverage over a wide area
A+ Guide to Hardware, 4e 20
21. Telephone Networks (continued)
• General Packet Radio Service (GPRS)
– New communication protocol using data packets
• Two types of transmission:
– Full-duplex: allows both users to talk and transmit
– Half-duplex: allows only one user on a channel
• Satellite phone: communicates with satellites
• Cordless phone: communicates with phone base
• Radio phone: uses VHF radio waves
A+ Guide to Hardware, 4e 21
22. Token Ring and FDDI
• Token Ring is physically a star, logically a ring
• Components of a token ring:
– Controlled Access Unit (CAU)
– Multistation Access Unit (MSAU or MAU)
– Token Ring LAN card connecting node to MSAU
– UTP or STP cables with two twisted pairs
– RJ-45 or Universal Data Connector (UDC)
• Fiber Distributed Data Interface (FDDI)
– Uses a token that travels in a ring like a Token Ring
– Data frames travel on the ring without the token
A+ Guide to Hardware, 4e 22
24. Windows on a Network
• Major software components on a network
• An operating system installed on each PC
– Network operating system (NOS) for larger networks
• Peer-to-peer network (workgroup)
– Each PC has the same authority on the network
• Client/server model (domain)
– Access to network resources controlled by an NOS
– Server is called a domain controller
• A few network operating systems
– Windows 2003 Server, Novell NetWare, Linux
A+ Guide to Hardware, 4e 24
25. Four Suites of Protocols
• TCP/IP (Transmission Control Protocol/Internet
Protocol)
– Primary protocol used on the Internet
• IPX/SPX (Internetwork Packet Exchange/Sequenced
Packet Exchange)
– Designed for use with Novell NetWare
• NetBEUI (NetBIOS Extended User Interface)
– Supports NetBIOS (Network Basic Input/Output
System)
• AppleTalk
– Proprietary networking protocol suite for Macs
A+ Guide to Hardware, 4e 25
26. Figure 10-25 An operating system can use more than one method to
address a computer on the network, but at the network level, a MAC address
is always used to address a device on the network
A+ Guide to Hardware, 4e 26
27. Four Suites of Protocols (continued)
• Using a protocol on the network
– Install a NIC card in the computer
– Connect network cable to network device; e.g., a switch
– NIC card binds to higher level protocol; e.g., TCP/IP
• How to identify which protocols are used in Windows
– Look at the properties of a network connection
• More than one OS protocol can be used on a network
• New protocols may be installed
• Network printers can be accessed in various ways
A+ Guide to Hardware, 4e 27
28. Figure 10-26 Three Windows XP network protocols are installed and two
protocols are bound to this network card
A+ Guide to Hardware, 4e 28
29. Addressing on a Network
• Four methods used to identify devices and programs
– Using a MAC address
– Using an IP address
– Using character-based names (host, domain, NetBIOS)
– Using a Port address
• IP addresses
– Used in TCP/IP to identify any device on the network
– 4 bytes (octets) separated by dots; e.g., 190.180.40.120
– System allows for up to 4.3 billion IP addresses
– First part identifies network, last part identifies host
A+ Guide to Hardware, 4e 29
30. Figure 10-27 Computers on the same LAN use MAC addresses to
communicate, but computers on different LANs use IP addresses to
communicate over the Internet
A+ Guide to Hardware, 4e 30
31. Installing a NIC and Connecting to a
Network
• Components needed to connect a PC to a network
– NIC and network port or wireless NIC card in the PC
– Patch cable
– Device for the PC to connect to, such as a router
• NIC card selection criteria
– NIC should match type of bus on motherboard
– NIC should match speed and type of network
– Wireless NIC should match network technology
A+ Guide to Hardware, 4e 31
32. Installing a NIC Using Windows
2000/XP
• Overview of installation steps
– Determine whether driver or NIC is installed first
– If NIC precedes driver, install NIC and turn on PC
– Follow instructions in Found New Hardware Wizard
– Verify driver installation using the Device Manager
– Update the driver if necessary
– Connect patch cable to NIC port and network switch
• Configuring Windows 2000/XP to use a network
– Name computer in System Properties dialog box
A+ Guide to Hardware, 4e 32
33. Figure 10-32 Windows XP uses the Computer Name Changes dialog box to
assign a host name to a computer on a network
A+ Guide to Hardware, 4e 33
34. Installing a NIC Using Windows
2000/XP (continued)
• Questions to ask before configuring TCP/IP
– Will the PC use dynamic or static IP addressing?
– What are the IP address, subnet mask, default gateway?
• A question to ask if static IP addressing is used
– Do you use DNS?
• If so, what are the IP addresses of your DNS servers?
– Is a proxy server used to connect to other networks?
• If so, what is the IP address of the proxy server?
• Gateway: device that connects two networks
A+ Guide to Hardware, 4e 34
35. Installing a NIC Using Windows
2000/XP (continued)
• Internet Protocol (TCP/IP) Properties dialog box
– Used to configure TCP/IP under Windows XP
– Dialog opened from Properties of Local Area Connection
• NWLink or NetBEUI protocol
– Used for network communication (excluding the Internet)
– Can be used in combination with TCP/IP
– Installed from Properties of Local Area Connection
A+ Guide to Hardware, 4e 35
36. Figure 10-34 To configure TCP/IP under Windows XP, use the
Internet Protocol (TCP/IP) Properties dialog box
A+ Guide to Hardware, 4e 36
37. Installing a NIC Using Windows 9x/Me
• Overview of installation steps:
– Physically install the NIC and turn on the PC
– Follow instructions of the Wizard
– Verify the installation using Device Manager
• Assigning a computer name
– Access Identification tab in Network dialog box
– Enter names of computer and workgroup
– Verify assignment in Network Neighborhood window
• Installing and configuring TCP/IP using Windows 98
– Use functions in the Network window
A+ Guide to Hardware, 4e 37
38. Figure 10-40 To configure TCP/IP in Windows 98, select the binding and click
Properties to view the TCP/IP Properties dialog box
A+ Guide to Hardware, 4e 38
39. Installing a Wireless Adapter in a
Notebook
• Wireless adapter uses a USB port or PC Card slot
• Installation package includes a CD and accessories
• Overview of steps for installing a Linksys adapter
– Install the software from the setup CD
– Plug the wireless adapter into a USB port
– Launch Found New Hardware and follow instructions
• Managing the issue of an unsigned driver
– Find approved driver or continue installation
• Deciding which installation utility to use
– Choose manufacturer’s utility over Windows XP’s
A+ Guide to Hardware, 4e 39
40. Figure 10-45 Plug the wireless USB adapter into the USB port
A+ Guide to Hardware, 4e 40
41. Installing a Wireless Adapter in a
Notebook (continued)
• Information displayed about a current connection:
– MAC address of access point device used by adapter
– The current channel the connection is using
– Transfer rate, throughput, link quality, signal strength
• Configuration changes you can make:
– Mode or network type
– The SSID (service set identifier)
– Encryption settings
– Tx rate
– TCP/IP configuration
A+ Guide to Hardware, 4e 41
42. Figure 10-49 Opening screen to configure a Linksys wireless adapter
A+ Guide to Hardware, 4e 42
43. Installing a Wireless Adapter in a
Notebook (continued)
• Connecting to a public hot spot using Windows XP
– Open Wireless Network Connection dialog box
– Select unsecured network from list and click Connect
– Open a browser to test the connection
– View link in Wireless Network Connection Status box
• Two ways to troubleshoot a connection
– Add network SSID in Wireless network properties
– Provide MAC address to network administrator
A+ Guide to Hardware, 4e 43
44. Figure 10-57 Enter the SSID of a hot spot to which you want to connect
A+ Guide to Hardware, 4e 44
45. How to Set Up Your Own Wireless
Network
• Two principal steps:
– Buy a wireless access point
– Configure AP and wireless PC for communication
• Providing security is critical for a successful network
A+ Guide to Hardware, 4e 45
46. Security on a Wireless LAN
• Methods for securing a wireless connection:
– Disable SSID broadcasting
– Filter MAC addresses
– Data encryption; e.g., WPA (WiFi Protected Access)
– Change firmware default settings
– Update firmware
– Use a firewall
– Virtual private network (VPN)
A+ Guide to Hardware, 4e 46
47. Figure 10-60 With tunneling, packets can travel over a wireless LAN and
the Internet in a virtual private network (VPN), but WEP or WPA applies
only to the wireless connection
A+ Guide to Hardware, 4e 47
48. Choosing a Wireless Access Point
• Selection criteria
– The ability to use multiple security measures
– Supports for the 802.11 b/g wireless standards
– Good hardware reviews from other users
• An access point can be a standalone device
• An access point can also serve multiple purposes
A+ Guide to Hardware, 4e 48
49. Configure and Test Your Wireless
Network
• Installing the hardware
– Position device and plug it in
– Connect the device using a network or USB cable
• Access point configuration is saved on firmware
• Configuring the access point
– Change default password to the administrative utility
– Select basic wireless settings, such as the channel
– Set up data encryption
– Choose whether to filter MAC addresses
– Save the settings and test the connection
A+ Guide to Hardware, 4e 49
50. Figure 10-65 This wireless access point supports several encryption methods
A+ Guide to Hardware, 4e 50
51. Troubleshooting a Network
Connection
• Some symptoms indicating a faulty NIC:
– You cannot make a connection to the network.
– My Network Places does not show any other PCs
– An error message displays during driver installation
• Displaying TCP/IP connection information
– Use Ipconfig under Windows 2000/XP
– Use Winipcfg under Windows 9x/Me
• Ping (Packet Internet Groper) diagnostic tool
– Sends a signal to a remote computer
– If remote PC is online and senses signal, it responds
A+ Guide to Hardware, 4e 51
52. Summary
• Network: system interconnecting two or more PCs
• Basic network types: PANs, LANs, MANs, and WANs
• Bandwidth: amount of data transmitted per unit time
• Ethernet topologies: bus, star, star bus
• Wireless standards: 802.11g/b/a/k/r, WiMAX,
Bluetooth
A+ Guide to Hardware, 4e 52
53. Summary (continued)
• Telephone technologies: POTS, VoIP, Cellular WAN,
satellite phone, cordless phone, and radio phone
• OS level protocols: TCP/IP, IPX/SPX, Net BEUI,
AppleTalk
• IP address: 32-bit address identifying network node
• Local Area Connection dialog box: used to install
and modify communication protocols
A+ Guide to Hardware, 4e 53