This document discusses personal area networks (PANs). The key points are:
- PANs connect devices within a short range, usually 10 meters or less, and include devices like smartphones, smartwatches, headphones, and speakers.
- They allow devices to communicate with each other directly or through a gateway device to connect to higher level networks and the internet.
- PANs can be wired using technologies like USB or wireless using technologies like Bluetooth, WiFi, or infrared. They provide an easy way to connect personal devices within a small area.
9 November 1877 – 21 April 1938) was a South Asian Muslim writer,[1][2] philosopher,[3] scholar and politician,[4] whose poetry in the Urdu language is considered among the greatest of the twentieth century,[5][6][7][8] and whose vision of a cultural and political ideal for the Muslims of British Raj[9] was to animate the impulse for Pakistan.[1][10] He is commonly referred to by the honorific Allama[11] (from Persian: علامہ, romanized: ʿallāma, lit. 'very knowing, most
9 November 1877 – 21 April 1938) was a South Asian Muslim writer,[1][2] philosopher,[3] scholar and politician,[4] whose poetry in the Urdu language is considered among the greatest of the twentieth century,[5][6][7][8] and whose vision of a cultural and political ideal for the Muslims of British Raj[9] was to animate the impulse for Pakistan.[1][10] He is commonly referred to by the honorific Allama[11] (from Persian: علامہ, romanized: ʿallāma, lit. 'very knowing, most
A network connects two or more computers to communicate and share resources. A local area network (LAN) spans a small distance like a home or school network, while a wide area network (LAN) connects computers across greater distances like cities or worldwide through the Internet. Key networking components include file servers, workstations, network interface cards, routers, switches, bridges, and repeaters. Networks use different types of cables for connectivity like coaxial, unshielded twisted pair, and fiber optic cables. Wireless networks connect computers without cables using technologies like WiFi. Wireless networks provide mobility but can face interference issues or security risks if unsecured. An intranet is a private internal network used within an organization, differing from the open global Internet
Computer networks can be classified based on their geographical span, interconnectivity, administration, and architecture. They range from personal area networks (PANs) covering 10 meters around a device, to local area networks (LANs) within a building, to metropolitan area networks (MANs) within a city, to wide area networks (WANs) spanning countries, to the largest network, the internet, which interconnects networks worldwide. Networks allow sharing of resources like printers and storage, as well as exchange of information via email, webpages, and other applications.
What is a Computer Network?
Characteristics of a computer network
Network Cables
Distributors
Routers
Internal Network Cards
External Network Cards
Intranet
Personal Area Network
Local Area Network
Metropolitan Area Network
Wide Area Network
Internetwork
Point-to-Point
Bus Topology
Star Topology
Ring Topology
Mesh Topology
Tree Topology
Hybrid Topology
For N10-005 Exam
Network Plus study guide.
Covers the basic with point form answers and easy to remember.
Those who hold a Network+ certification may improve their chances of landing a job in the networking industry or increasing salary in their existing position. A Network+ also can be used to partially satisfy some prerequisites of more advanced IT certifications. For example, it qualifies as one of part of the elective exam requirement of the Microsoft Certified Systems Administrator (MCSA) certification.
Data is raw unorganized facts and details measured in bits and bytes, while information is processed, organized data that provides context and enables decision making. A node is a connection point in a network, and a port allows information to flow between programs. There are several types of computer networks including PAN (personal area networks around an individual), LAN (local area networks connecting devices in a building), MAN (metropolitan area networks spanning a city), and WAN (wide area networks covering a large geographic region).
This document discusses different types of computer networks categorized by size and purpose. It describes personal area networks (PANs) which connect devices within a single home or building, local area networks (LANs) which connect devices within a single office building, metropolitan area networks (MANs) which span an entire city or campus, and wide area networks (WANs) which span an entire country or the world. It also discusses private networks like enterprise private networks (EPNs) and virtual private networks (VPNs) which connect multiple locations in a secure manner without using the public internet. Campus area networks (CANs) are also discussed as networks designed specifically for a college campus.
9 November 1877 – 21 April 1938) was a South Asian Muslim writer,[1][2] philosopher,[3] scholar and politician,[4] whose poetry in the Urdu language is considered among the greatest of the twentieth century,[5][6][7][8] and whose vision of a cultural and political ideal for the Muslims of British Raj[9] was to animate the impulse for Pakistan.[1][10] He is commonly referred to by the honorific Allama[11] (from Persian: علامہ, romanized: ʿallāma, lit. 'very knowing, most
9 November 1877 – 21 April 1938) was a South Asian Muslim writer,[1][2] philosopher,[3] scholar and politician,[4] whose poetry in the Urdu language is considered among the greatest of the twentieth century,[5][6][7][8] and whose vision of a cultural and political ideal for the Muslims of British Raj[9] was to animate the impulse for Pakistan.[1][10] He is commonly referred to by the honorific Allama[11] (from Persian: علامہ, romanized: ʿallāma, lit. 'very knowing, most
A network connects two or more computers to communicate and share resources. A local area network (LAN) spans a small distance like a home or school network, while a wide area network (LAN) connects computers across greater distances like cities or worldwide through the Internet. Key networking components include file servers, workstations, network interface cards, routers, switches, bridges, and repeaters. Networks use different types of cables for connectivity like coaxial, unshielded twisted pair, and fiber optic cables. Wireless networks connect computers without cables using technologies like WiFi. Wireless networks provide mobility but can face interference issues or security risks if unsecured. An intranet is a private internal network used within an organization, differing from the open global Internet
Computer networks can be classified based on their geographical span, interconnectivity, administration, and architecture. They range from personal area networks (PANs) covering 10 meters around a device, to local area networks (LANs) within a building, to metropolitan area networks (MANs) within a city, to wide area networks (WANs) spanning countries, to the largest network, the internet, which interconnects networks worldwide. Networks allow sharing of resources like printers and storage, as well as exchange of information via email, webpages, and other applications.
What is a Computer Network?
Characteristics of a computer network
Network Cables
Distributors
Routers
Internal Network Cards
External Network Cards
Intranet
Personal Area Network
Local Area Network
Metropolitan Area Network
Wide Area Network
Internetwork
Point-to-Point
Bus Topology
Star Topology
Ring Topology
Mesh Topology
Tree Topology
Hybrid Topology
For N10-005 Exam
Network Plus study guide.
Covers the basic with point form answers and easy to remember.
Those who hold a Network+ certification may improve their chances of landing a job in the networking industry or increasing salary in their existing position. A Network+ also can be used to partially satisfy some prerequisites of more advanced IT certifications. For example, it qualifies as one of part of the elective exam requirement of the Microsoft Certified Systems Administrator (MCSA) certification.
Data is raw unorganized facts and details measured in bits and bytes, while information is processed, organized data that provides context and enables decision making. A node is a connection point in a network, and a port allows information to flow between programs. There are several types of computer networks including PAN (personal area networks around an individual), LAN (local area networks connecting devices in a building), MAN (metropolitan area networks spanning a city), and WAN (wide area networks covering a large geographic region).
This document discusses different types of computer networks categorized by size and purpose. It describes personal area networks (PANs) which connect devices within a single home or building, local area networks (LANs) which connect devices within a single office building, metropolitan area networks (MANs) which span an entire city or campus, and wide area networks (WANs) which span an entire country or the world. It also discusses private networks like enterprise private networks (EPNs) and virtual private networks (VPNs) which connect multiple locations in a secure manner without using the public internet. Campus area networks (CANs) are also discussed as networks designed specifically for a college campus.
A network connects two or more computers to communicate and share resources. A local area network (LAN) spans a small distance like a home or school network, while a wide area network (WAN) connects computers across cities, states, or the world, like the Internet. Key network components include file servers, workstations, network interface cards, routers, switches, bridges, and repeaters. Common connection types are coaxial cable, unshielded twisted pair cable, fiber optic cable, and wireless networks using infrared, radio signals, or lasers. Wireless networks provide mobility and quick access but can face interference or security issues if unsecured. The Internet is a global network, while an intranet is internal to an organization.
The document provides an overview of the history and development of computer networks from the 18th century to present day. It specifically discusses ARPANET, the first wide-area packet switched network developed in the late 1960s that served as a prototype for today's Internet. The document also defines different types of computer networks including PAN, LAN, MAN, and WAN, and describes common network hardware devices such as hubs, switches, routers, and gateways.
The document discusses intranets and wireless networks. It defines an intranet as a private network within an organization that uses Internet standards like HTML and TCP/IP. Wireless networks allow devices to connect without wires using radio waves. Different types are described, including wireless PANs, LANs, WANs and cellular networks. Benefits of wireless networks include mobility, convenience and easy setup while avoiding wiring costs, but they can be subject to interference.
1. The document discusses various computer network types including personal area networks (PAN), local area networks (LAN), metropolitan area networks (MAN), wide area networks (WAN) and internetworks.
2. It also covers network topologies such as bus, star, ring, mesh, tree and hybrid topologies.
3. Additionally, it describes different number systems used in computers like the binary, octal and hexadecimal numbering systems.
1. The document discusses various computer network types including personal area networks (PAN), local area networks (LAN), metropolitan area networks (MAN), wide area networks (WAN) and internetworks.
2. It also covers common LAN technologies like Ethernet, Fast Ethernet, Gigabit Ethernet and virtual LANs. Different network topologies such as star, bus, ring and mesh are described.
3. The number systems used in computers like binary, octal and hexadecimal are explained along with examples of how to convert between number systems.
This document defines and describes several types of computer networks:
- Local Area Networks (LANs) connect devices within a small geographic area like a home or office building. Metropolitan Area Networks (MANs) span larger areas like a city or campus. Wide Area Networks (WANs) can connect LANs over long distances, even worldwide.
- Personal Area Networks (PANs) connect devices in close proximity, within a few meters. Wireless Local Area Networks (WLANs) allow devices to connect within a LAN via wireless transmission. Storage Area Networks (SANs) provide block-level data storage access.
- Mobile ad hoc networks (MANETs) are infrastructure-less networks
A computer network connects devices using communication links. It allows for simultaneous communication and sharing of bandwidth between connected devices sending signals in either direction. There are different types of networks including personal area networks covering a single person, local area networks spanning a building or campus, metropolitan area networks covering multiple cities, and wide area networks spanning countries or continents. Networks rely on protocols that define rules for communication and different hardware technologies for data transmission, including broadcast links that send packets to all machines and point-to-point links that connect individual pairs of machines.
This document provides an overview of key concepts in computer networks and communication. It defines what a network is, discusses the need for networking and sharing of resources, and outlines the evolution of early networks like ARPANET and NSFNET into the modern Internet. It also covers network topologies, transmission media, switching techniques, common network devices, and communication protocols.
This document provides an overview of Ethernet networking basics. It discusses the types of computer networks including local area networks (LANs), wide area networks (WANs), and wireless local area networks (WLANs). It also describes common networking technologies such as Ethernet, Fast Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet, asynchronous transfer mode (ATM), Power over Ethernet (PoE), and Token Ring. Additionally, it covers networking protocols, the OSI model, Ethernet coding standards, and other fundamental networking concepts.
A LAN is a network confined within a limited geographic area that connects computers. LANs can connect as few as three computers but often link hundreds used by thousands of people. Standard networking protocols and media have resulted in widespread use of LANs in businesses and schools. Common LAN technologies include Ethernet, phone lines, and wireless. Ethernet uses coaxial or twisted pair cabling and a hub to connect computers, while phone lines use existing telephone wiring. Wireless networks use radio signals and no cabling.
This document provides an overview of computer networks and networking concepts. It begins by covering basic network types like LANs, WANs, and the Internet. It then discusses common networking components like switches, routers, and firewalls. Various network topologies are described along with physical network media like Ethernet cables and wireless technologies. Communication protocols and standards for networking are also outlined. The document provides a comprehensive introduction to computer networks, networking hardware and software, and fundamental networking concepts.
Types of Computer Networks bba 1st sem.pptxPankaj Chandel
There are various types of computer networks available. We can categorize them according to their size as well as their purpose.
The size of a network should be expressed by the geographic area and number of computers, which are a part of their networks. It includes devices housed in a single room to millions of devices spread across the world.
Some of the most popular network types are:
PAN
LAN
MAN
WAN
This document defines and classifies different types of computer networks. It describes networks based on their geographical span, including personal area networks (PANs), local area networks (LANs), metropolitan area networks (MANs), wide area networks (WANs), and storage area networks (SANs). The document also discusses network architecture types like client-server, peer-to-peer, and hybrid networks. Additionally, it provides brief explanations of internetworks, intranets, extranets, and virtual private networks (VPNs).
The document discusses computer networks and networking concepts. It begins by outlining the course content, which includes network types, media, threats, and cloud computing. It then defines what a computer network is and describes common network components like nodes, interconnections, and communication protocols. The document outlines different network types including LANs, WANs, MANs, SANs, and VPNs. It also discusses network devices, media, protocols, and advantages of networks.
This document provides an overview of computer networking concepts. It discusses the basic components of networks including nodes, communication protocols, network media, common network types, networking devices, network topologies and wireless networks. Specific topics covered include the Internet protocol suite, Ethernet, wireless LANs, fiber optic and copper cabling, bridges, switches, routers, firewalls, the client-server model and peer-to-peer networking. Network advantages like simultaneous access and easier data backup are also summarized.
This document provides an overview of computer networking concepts. It discusses the basic components of networks including nodes, communication protocols, network media, common network types, networking devices, network topologies and wireless networks. Specific topics covered include LANs, WANs, the TCP/IP protocol suite, Ethernet, fiber optic and twisted pair cabling, switches, routers, firewalls, the internet, cloud computing and wireless technologies like Bluetooth and Wi-Fi. The document is intended as an introductory course on computer networking fundamentals.
This document provides an overview of computer networking concepts. It discusses the basic components of networks including nodes, communication protocols, network media, common network types, networking devices, network topologies and wireless networks. Specific topics covered include LANs, WANs, the TCP/IP protocol suite, Ethernet, fiber optic and copper cabling, switches, routers, firewalls, the internet, cloud computing and wireless technologies like Bluetooth and Wi-Fi. The document is intended as an introductory course on computer networking fundamentals.
This document provides an overview of computer networking concepts. It discusses the basic components of networks including nodes, communication protocols, network media, common network types, networking devices, network topologies and wireless networks. Specific topics covered include LANs, WANs, the TCP/IP protocol suite, Ethernet, fiber optic and copper cabling, switches, routers, firewalls, the internet, cloud computing and wireless technologies like Bluetooth and Wi-Fi. The document is intended as an introductory course on computer networking fundamentals.
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A network connects two or more computers to communicate and share resources. A local area network (LAN) spans a small distance like a home or school network, while a wide area network (WAN) connects computers across cities, states, or the world, like the Internet. Key network components include file servers, workstations, network interface cards, routers, switches, bridges, and repeaters. Common connection types are coaxial cable, unshielded twisted pair cable, fiber optic cable, and wireless networks using infrared, radio signals, or lasers. Wireless networks provide mobility and quick access but can face interference or security issues if unsecured. The Internet is a global network, while an intranet is internal to an organization.
The document provides an overview of the history and development of computer networks from the 18th century to present day. It specifically discusses ARPANET, the first wide-area packet switched network developed in the late 1960s that served as a prototype for today's Internet. The document also defines different types of computer networks including PAN, LAN, MAN, and WAN, and describes common network hardware devices such as hubs, switches, routers, and gateways.
The document discusses intranets and wireless networks. It defines an intranet as a private network within an organization that uses Internet standards like HTML and TCP/IP. Wireless networks allow devices to connect without wires using radio waves. Different types are described, including wireless PANs, LANs, WANs and cellular networks. Benefits of wireless networks include mobility, convenience and easy setup while avoiding wiring costs, but they can be subject to interference.
1. The document discusses various computer network types including personal area networks (PAN), local area networks (LAN), metropolitan area networks (MAN), wide area networks (WAN) and internetworks.
2. It also covers network topologies such as bus, star, ring, mesh, tree and hybrid topologies.
3. Additionally, it describes different number systems used in computers like the binary, octal and hexadecimal numbering systems.
1. The document discusses various computer network types including personal area networks (PAN), local area networks (LAN), metropolitan area networks (MAN), wide area networks (WAN) and internetworks.
2. It also covers common LAN technologies like Ethernet, Fast Ethernet, Gigabit Ethernet and virtual LANs. Different network topologies such as star, bus, ring and mesh are described.
3. The number systems used in computers like binary, octal and hexadecimal are explained along with examples of how to convert between number systems.
This document defines and describes several types of computer networks:
- Local Area Networks (LANs) connect devices within a small geographic area like a home or office building. Metropolitan Area Networks (MANs) span larger areas like a city or campus. Wide Area Networks (WANs) can connect LANs over long distances, even worldwide.
- Personal Area Networks (PANs) connect devices in close proximity, within a few meters. Wireless Local Area Networks (WLANs) allow devices to connect within a LAN via wireless transmission. Storage Area Networks (SANs) provide block-level data storage access.
- Mobile ad hoc networks (MANETs) are infrastructure-less networks
A computer network connects devices using communication links. It allows for simultaneous communication and sharing of bandwidth between connected devices sending signals in either direction. There are different types of networks including personal area networks covering a single person, local area networks spanning a building or campus, metropolitan area networks covering multiple cities, and wide area networks spanning countries or continents. Networks rely on protocols that define rules for communication and different hardware technologies for data transmission, including broadcast links that send packets to all machines and point-to-point links that connect individual pairs of machines.
This document provides an overview of key concepts in computer networks and communication. It defines what a network is, discusses the need for networking and sharing of resources, and outlines the evolution of early networks like ARPANET and NSFNET into the modern Internet. It also covers network topologies, transmission media, switching techniques, common network devices, and communication protocols.
This document provides an overview of Ethernet networking basics. It discusses the types of computer networks including local area networks (LANs), wide area networks (WANs), and wireless local area networks (WLANs). It also describes common networking technologies such as Ethernet, Fast Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet, asynchronous transfer mode (ATM), Power over Ethernet (PoE), and Token Ring. Additionally, it covers networking protocols, the OSI model, Ethernet coding standards, and other fundamental networking concepts.
A LAN is a network confined within a limited geographic area that connects computers. LANs can connect as few as three computers but often link hundreds used by thousands of people. Standard networking protocols and media have resulted in widespread use of LANs in businesses and schools. Common LAN technologies include Ethernet, phone lines, and wireless. Ethernet uses coaxial or twisted pair cabling and a hub to connect computers, while phone lines use existing telephone wiring. Wireless networks use radio signals and no cabling.
This document provides an overview of computer networks and networking concepts. It begins by covering basic network types like LANs, WANs, and the Internet. It then discusses common networking components like switches, routers, and firewalls. Various network topologies are described along with physical network media like Ethernet cables and wireless technologies. Communication protocols and standards for networking are also outlined. The document provides a comprehensive introduction to computer networks, networking hardware and software, and fundamental networking concepts.
Types of Computer Networks bba 1st sem.pptxPankaj Chandel
There are various types of computer networks available. We can categorize them according to their size as well as their purpose.
The size of a network should be expressed by the geographic area and number of computers, which are a part of their networks. It includes devices housed in a single room to millions of devices spread across the world.
Some of the most popular network types are:
PAN
LAN
MAN
WAN
This document defines and classifies different types of computer networks. It describes networks based on their geographical span, including personal area networks (PANs), local area networks (LANs), metropolitan area networks (MANs), wide area networks (WANs), and storage area networks (SANs). The document also discusses network architecture types like client-server, peer-to-peer, and hybrid networks. Additionally, it provides brief explanations of internetworks, intranets, extranets, and virtual private networks (VPNs).
The document discusses computer networks and networking concepts. It begins by outlining the course content, which includes network types, media, threats, and cloud computing. It then defines what a computer network is and describes common network components like nodes, interconnections, and communication protocols. The document outlines different network types including LANs, WANs, MANs, SANs, and VPNs. It also discusses network devices, media, protocols, and advantages of networks.
This document provides an overview of computer networking concepts. It discusses the basic components of networks including nodes, communication protocols, network media, common network types, networking devices, network topologies and wireless networks. Specific topics covered include the Internet protocol suite, Ethernet, wireless LANs, fiber optic and copper cabling, bridges, switches, routers, firewalls, the client-server model and peer-to-peer networking. Network advantages like simultaneous access and easier data backup are also summarized.
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3. Is the smallest network which is very personal to a user. This may include Bluetooth
enabled devices or infra-red enabled devices. It has connectivity range up to 10 meters.
PANs can also connect laptops, tablets, printers, keyboards, and other computerized
devices.
PANs can be used for communication among the personal devices themselves, or for
connecting to a higher level network and the Internet where one master device takes up
the role as gateway.
Initial PAN architecture was designed by Thomas Zimmerman of the Massachusetts
Institute of Technology (MIT) Media Lab, but after that IBM’s Almaden Research Lab
developed PAN concept.
4. Wired connection methods include USB and FireWire.
Wireless connection methods include
Bluetooth (the most common), WiFi, IrDA, and
Zigbee.
5.
6. A small home built office.
Connection of several types of network devices to a personal computer such as mouse, keyboard, printers,
speakers, etc.
Connection of multiple devices to your Smartphone device such as smartwatches, headphones, speakers,
etc.
Advantages
It is easy to install.
Maintenance cost remains around zero (0).
The quality is good.
It is flexible and portable.
Easily managed.
This network is considered to be secure.
There is no loss of data or personal information.
Disadvantages
The coverage area/range is less.
Data transmission is slow
If WPAN (Wireless Personal Area
Network) is used then its devices are
relatively expensive.
7. A computer network spanned inside a building and operated under single administrative system is generally
termed as Local Area Network (LAN).
LAN provides a useful way of sharing the resources between end users. The resources such as printers, file
servers, scanners, and internet are easily sharable among computers. LAN covers an organization offices,
schools, colleges or universities.
LANs are composed of inexpensive networking and routing equipment along with device that can connect
and communicate through Ethernet. It mostly operates on private IP addresses and does not involve heavy
routing.
A LAN connection is a high-speed connection to a LAN. Most connections are either Ethernet (10 Mbps) or
Fast Ethernet (100 Mbps), and Gigabit Ethernet (1000 Mbps) connections. LAN can be wired, wireless, or in
both forms at once.
In the 1960s and 1970s, networks were ad hoc hodgepodges of technologies with little rhyme and less
reason. But then Robert "Bob" Metcalfe was asked to create a local-area network (LAN) for Xerox's Palo Alto
Research Center (PARC). His creation, Ethernet, changed everything.
8.
9. Home Network
Office Network
Public Network
Offline Network
Advantages
Resource Sharing
Software Sharing
Convenient Communication
Centralized Data
Improved Security
Internet Sharing
Computer Identification
Disadvantages
Implementation Cost
Policy Violations
Security
Maintenance
Area Coverage
Server Crashes
Malware Spreading
10. A MAN is larger than a local area network (LAN) but smaller than a wide area network (WAN). MANs do not
have to be in urban areas; the term "metropolitan" implies the size of the network, not the demographics
of the area that it serves.
The Metropolitan Area Network (MAN) generally expands throughout a city such as cable TV network. It
can be in the form of Ethernet, Token-ring, ATM, or Fiber Distributed Data Interface (FDDI).
Backbone of MAN is high-capacity and high-speed fiber optics. MAN works in between Local Area Network
and Wide Area Network. MAN provides uplink for LANs to WANs or internet. For example, MAN can help an
organization to connect all of its offices in a city.
MANs typically combine the networks of multiple organizations, instead of being managed by a single
organization.
This MAN provides coverage of between 10 to 50 km using a wide network, making it ideal for building a
connection between offices in a single city, factories/agencies, and the corporate headquarters within its
ability to reach.
11.
12. A network between branches
A network of a local ISP
A network on a university campus
A municipal government network
Advantages
High Speed
Internet sharing
High Security
Less expensive
Sending Local Emails
Conversion of LAN to MAN is Easy
Disadvantages
Internet Speed Difference
Difficult To Manage
High risk of hacking
Technical Staff Requires to Set up
Need More wires
13. The Wide Area Network (WAN) covers a wide area which may span across provinces and even a whole
country. Generally, telecommunication networks are Wide Area Network. These networks provide
connectivity to MANs and LANs. Since they are equipped with very high speed backbone, WANs use very
expensive network equipment.
WAN may use advanced technologies such as Asynchronous Transfer Mode (ATM), Frame Relay, and
Synchronous Optical Network (SONET). WAN may be managed by multiple administration.
A wide-area network (WAN) is a collection of local-area networks (LANs) or other networks that
communicate with one another. A WAN is essentially a network of networks, with the Internet the world's
largest WAN.
The first known WAN was created by the U.S. Air Force in the late 1950s to interconnect sites in the Semi-
Automatic Ground Environment (SAGE) radar defense system. An enormous network of dedicated phone
lines, telephones, and modems linked the sites together.
The foundation of the IP-based Internet started with the Advanced Research Projects Agency Network
(ARPANET), the first wide-area packet-switching network with distributed control and the first network to
implement TCP/IP protocol suite.
14.
15. The Internet
National banking network
Transnational business networks
Military satellite networks
Pay TV networks
Advantages
Area Coverage
Centralized Data
Updated Files
Message Exchange
Increased Bandwidth
Assured Uptime
Disadvantages
Security
Need of Security Solutions
Installation Costs
Disconnection Problems
Troubleshooting Issues
Maintenance Issues
16. A network of networks is called an internetwork, or simply the internet. It is the largest network in
existence on this planet. The internet hugely connects all WANs and it can have connection to LANs and
Home networks.
Internet uses TCP/IP protocol suite and uses IP as its addressing protocol. Present day, Internet is widely
implemented using IPv4. Because of shortage of address spaces, it is gradually migrating from IPv4 to IPv6.
Internet enables its users to share and access enormous amount of information worldwide. It uses WWW,
FTP, email services, audio, and video streaming etc. At huge level, internet works on Client-Server model.
Internet uses very high speed backbone of fiber optics. To inter-connect various continents, fibers are laid
under sea known to us as submarine communication cable.
Internetworking uses the internet protocol. The reference model used for internetworking is Open System
Interconnection(OSI).
17. Extranet
An extranet is a communication network based on the internet protocol such as Transmission Control
protocol and internet protocol.
It is used for information sharing. The access to the extranet is restricted to only those users who have login
credentials.
An extranet is the lowest level of internetworking. It can be categorized as MAN, WAN or other computer
networks.
An extranet cannot have a single LAN, at least it must have one connection to the external network.
Intranet
An intranet is a private network based on the internet protocol such as Transmission Control protocol and
internet protocol. An intranet belongs to an organization which is only accessible by the organization's
employee or members.
The main aim of the intranet is to share the information and resources among the organization employees.
An intranet provides the facility to work in groups and for teleconferences.
18. Advantages
Communication
Access To Resources and Instant
Information
E-commerce, Digital Banking & Payments
Entertainment & Lifestyle
Online Education & Distant Learning
Video Conferencing & Screen Sharing
Online Services, booking & Schedule and
Job Application
Disadvantages
Money Frauds
Cyber Crime
Fake News and Spread of illegal And
Unethical material
Virus & Hacking Attacks
Not a safe place for Children
Addiction & Causes Distractions
19.
20. Ethernet is a communication standard that was developed in the early ’80s to network computers and other
devices in a local environment such as a home or a building.
This local environment is defined as a LAN (Local Area Network) and it connects multiple devices so that
they can create, store and share information with others in the location. This technology was invented by
Bob Metcalfe and D.R. Boggs in the year 1970. It was standardized in IEEE 802.3 in 1980.
Ethernet connector is network interface card equipped with 48-bits MAC address. This helps other Ethernet
devices to identify and communicate with remote devices in Ethernet
Ethernet is a wired system that started with using coaxial cable and has successfully progressed to now
using twisted pair copper wiring and fiber optic wiring..
Traditional Ethernet uses 10BASE-T specifications. Ethernet provides transmission speed up to 10MBps
Ethernet follows Star topology with segment length up to 100 meters. All devices are connected to a
hub/switch in a star fashion.
21. To encompass need of fast emerging software and hardware technologies, Ethernet extends itself as Fast-
Ethernet. It can run on Unshielded Twisted Pair (UTP), Optical Fiber, and wirelessly too. It can provide speed
up to 100MBPS. This standard is named as 100BASE-T in IEEE 803.2 using Cat-5 twisted pair cable. It uses
CSMA/CD technique for wired media sharing among the Ethernet hosts and CSMA/CA (CA stands for
Collision Avoidance) technique for wireless Ethernet LAN.
Fast Ethernet on fiber is defined under 100BASE-FX standard which provides speed up to 100MBPS on fiber.
Ethernet over fiber can be extended up to 100 meters in half-duplex mode and can reach maximum of 2000
meters in full-duplex over multimode fibers.
22. After being introduced in 1995, Fast-Ethernet retained its high speed status only for three years till Giga-
Ethernet introduced. Giga-Ethernet provides speed up to 1000 MBps. IEEE802.3ab standardizes Giga-
Ethernet over UTP using Cat-5, Cat-5e and Cat-6 cables. IEEE802.3ah defines Giga-Ethernet over Fiber.
The maximum length of this system can be up to 70km, therefore most universities and companies use it.
Advantages
Faster
Less Latency
Better Bandwidth
Disadvantages
All Components Need to Be Compatible
It's More Expensive
23. Coaxial cable (which is not very common except in older
installations)
Twisted pair
Alexander Graham Bell invented twisted pair wiring in 1881
Category 5 and 5e cables are both still used in many
existing applications but handle the lower speeds
between 10 Mbps to 100 Mbps but are more susceptible
to noise.
Category 6 with speeds up to 1 Gbps.
CAT6a and CAT 7 with speeds up to 10 Gbps.
24. Fiber optic
Fiber optic cable uses glass or plastic optical fiber as a conduit for light pulses to transmit data. It has
allowed Ethernet to travel farther distances at higher speeds.
Fiber optic cables use several different types of connectors that vary depending on your application
needs. Some of the different types are SFP (Small Form Pluggable or Small Factor Pluggable) and SC
(Subscriber Connector, also known as Square Connector or Standard Connector).
To use fiber optic in an Ethernet network that utilizes twisted pair Ethernet cabling, “Ethernet to Fiber
Converter” is needed to allow the network to take advantage of the higher speeds of fiber optic and
lengthen the distance that the Ethernet network can reach.
25. Virtual LAN is a solution to divide a single Broadcast domain into multiple Broadcast domains. Host in one
VLAN cannot speak to a host in another. By default, all hosts are placed into the same VLAN.
Is a custom network which is created from one or more local area networks. It enables a group of devices
available in multiple networks to be combined into one logical network. The result becomes a virtual LAN
that is administered like a physical LAN. The full form of VLAN is defined as Virtual Local Area Network.