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  • Information about the OSI network model would not available in the Student Guide, but you need to tell students in brief that OSI model provides various layers to establish network between computers. Following are the seven network layers of OSI network model: Physical layer : Helps convert bit stream in to different signals, such as electric and light. Data link layer : Helps encode and decode data packets into bits. Network layer : Helps creating logical path for data transfer using techniques, such as switching and routing. Transport layer : Helps transport data between end-systems. Session layer : Helps establish, manage, and terminate connection between applications. Presentation layer : Helps represent data in network format. Application layer : Helps process application for end-users.
  • Information about the other network coverage areas can also be discussed here. Following are the various network coverage areas: A Personal Area Network (PAN): which is a network of devices used by a single individual, such as a user’s cellular phone with a wireless hands-free handset. A Campus Area Network (CAN): which covers an area equivalent to an academic campus or business park. A CAN is typically owned or used exclusively by one company, school, or organization. A Metropolitan Area Network (MAN): which covers an area equivalent to a city or other municipality. A Global Area Network (GAN): which is any worldwide network.

Comp tia a+_session_10 Presentation Transcript

  • 1. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Objectives In this session, you will learn to: Identify fundamental concepts of computer networks. Identify network communications technologies. Identify network connectivity technologies. Identify Internet technologies. Ver. 1.0 Session 10 Slide 1 of 52
  • 2. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network concepts For learning networking concepts, you need to understand the following: Networks Network models Network interface card characteristics Twisted pair cables RJ-45 twisted pair connectors Coaxial cables Coaxial cable and connector types Fiber optic cables Fiber optic connectors Other network connection types Ver. 1.0 Session 10 Slide 2 of 52
  • 3. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Networks A network: Group of computers Share resources A network includes: Network media Network adapter Network operating system Network protocol Ver. 1.0 Session 10 Slide 3 of 52
  • 4. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network Models • Network models: Centralized Client-server Peer-to-peer Centralized Client-server Peer-to-peer Ver. 1.0 Session 10 Slide 4 of 52
  • 5. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network Interface Card Characteristics Network interface card characteristics: Network connection port Physical network address Physical Address Status indicator lights Port Status Lights Ver. 1.0 Session 10 Slide 5 of 52
  • 6. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Twisted Pair Cables • The twisted pair is a type of cable in which multiple insulated conductors are twisted around each other in pairs and clad in a protective and insulating outer jacket. • Types: Unshielded Twisted Pair (UTP) Shielded Twisted Pair (STP) Insulated jacket Multiple pairs of conductors Wires twisted together Ver. 1.0 Session 10 Slide 6 of 52
  • 7. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives RJ-45 Twisted Pair Connectors The RJ-45 connector is used on twisted pair cable. Eight pins 1 W/Green P3 2 Green 3 W/Orange 4 Blue P1 P2 5 W/Blue 6 Orange 7 W/Brown P4 8 Brown Four pairs of wires Ver. 1.0 Session 10 Slide 7 of 52
  • 8. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Coaxial Cables • The coaxial cables, or coax, is a type of copper cable that features a central conductor surrounded by braided or foil shielding. Non-conductive Braided shielding insulated coating Single copper conductor Ver. 1.0 Session 10 Slide 8 of 52
  • 9. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Coaxial Cable and Connector Types Coaxial cable type: 5 mm/0.25 inch (“Thinnnet”) 10 mm/0.5 inch (“Thicknet”) Connector types: BNC connector T-connector BNC connector on thin T-connector 50-ohm resistor on T- net cable connector Ver. 1.0 Session 10 Slide 9 of 52
  • 10. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Fiber Optic Cables • The fiber optic cable is a type of network cable in which the core is one or more glass or plastic strands. • Fiber optic cable mode types: Single-mode fiber Step index multimode fiber Graded index multimode fiber Outer jacket Silica cladding Inner jacket Glass or plastic core Ver. 1.0 Session 10 Slide 10 of 52
  • 11. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Fiber Optic Connectors Fiber Optic Connectors are: ST SC FC FDDI Mini-BNC Biconic LC SMA MT-RJ Ver. 1.0 Session 10 Slide 11 of 52
  • 12. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Other Network Connection Types • Other network connection types: USB Firewire RS-232 Wireless Firewire USB RS-232 Wireless Ver. 1.0 Session 10 Slide 12 of 52
  • 13. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Activity 10-2 Activity on Identifying the Local MAC Address Ver. 1.0 Session 10 Slide 13 of 52
  • 14. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network Communications For learning network communication, you need to understand following: Network protocols Network addresses The TCP/IP protocol IP addresses Subnet masks IP address classes The IPX/SPX and NWLink protocols NetBIOS NetBEUI Network bandwidth Full and half duplex communications Ver. 1.0 Session 10 Slide 14 of 52
  • 15. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network Protocols • A network protocol is software that provides the rules to conduct network operations. Common network protocol Formats packet data Ver. 1.0 Session 10 Slide 15 of 52
  • 16. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network Addresses • A network address is an numeric identification code assigned to a network computer according network protocol. • Network address consist: Network portion Node portion X.X.150.2 X.X.150.3 192.168.X.X Network portion of address = Street name Node portion of address = House number Complete address = Street name and house number Ver. 1.0 Session 10 Slide 16 of 52
  • 17. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives The TCP/IP Protocol Transmission Control Protocol/Internet Protocol (TCP/IP): A nonproprietary, routable network protocol Helps computers to communicate over all types of networks TCP/IP Ver. 1.0 Session 10 Slide 17 of 52
  • 18. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives IP Addresses • An IP address is a 32-bit binary number assigned to a computer on a TCP/IP network. • An IP address consists: Network segment Node segment Network Segment Node Segment Binary 11010000.01111011.00101101.00010010 Decimal 208.123.45.18 Ver. 1.0 Session 10 Slide 18 of 52
  • 19. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Subnet Masks • A subnet mask is a 32-bit number assigned to each system. • Subnet mask divide the 32-bit binary IP address into: and node portions. Network portion Node portion IP address 139.87.140.76 Removes the node portion of the IP Subnet mask 255.255.255.0 address Network ID 139.87.140.0 Ver. 1.0 Session 10 Slide 19 of 52
  • 20. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives IP Address Classes The IP address classes: Address Class Range Default Subnet Mask Networks/Nodes 1.0.0.0 to 126 networks of up to 16,777,214 Class A 255.0.0.0 127.255.255.255 nodes each 128.0.0.0 to 16,382 networks of up to 65,534 Class B 255.255.0.0 191.255. 255.255 nodes each 192.0.0.0 to 2,097,150 networks of up to 254 Class C 255.255.255.0 223.255.255 .255 nodes each 224.0.0.0 to All members of the multicast Class D None 239.255.255.255 session share the same IP address 240.0.0.0 to Strictly for research and Class E None 255.255.255.255 experimentation purposes Ver. 1.0 Session 10 Slide 20 of 52
  • 21. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives The IPX/SPX and NWLink Protocols Internetwork Packet Exchange/Sequenced Packet Exchange (IPX/SPX) is a proprietary, routable network protocol suite. NWLink Windows client Legacy Novell NetWare server IPX/SPX Ver. 1.0 Session 10 Slide 21 of 52
  • 22. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives NetBIOS Network Basic Input/Output System (NetBIOS) a specification enables applications and services to use different network protocols for network communicate. NetBIOS Enables network applications and services to TCP/IP communicate Network protocol transmits data Ver. 1.0 Session 10 Slide 22 of 52
  • 23. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives NetBEUI NetBIOS Extended User Interface (NetBEUI) is a legacy protocol found only in Windows Networks. Client1 Client2 00-60-08-cd-34-64 00-60-08-cd-34-52 NetBEUI Server1 Client3 00-aa-00-62-c6-09 00-80-5b-a3-8d-a8 Ver. 1.0 Session 10 Slide 23 of 52
  • 24. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network Bandwidth • The bandwidth helps measure how much data a network can carry. High Bandwidth 100 mbps 10 mbps Low Bandwidth Ver. 1.0 Session 10 Slide 24 of 52
  • 25. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Full and Half Duplex Communications • The full duplex mode communications permit simultaneous two-way communications. • The half duplex mode communications permit two-way communications, but in only one direction at a time. Half duplex Full duplex One direction at a time Both directions simultaneously Ver. 1.0 Session 10 Slide 25 of 52
  • 26. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Activity 10-4 Activity on Identifying Local Network Characteristics Ver. 1.0 Session 10 Slide 26 of 52
  • 27. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Network Connectivity For learning networking connectivity, you need to understand the following: Local Area Networks (LANs) Wide Area Networks (WANs) Ethernet Dial-up Connections Wireless Connections 802.11 Wireless Standards Wireless Access Points (WAPs) Bluetooth Communications Infrared Connections Cellular WAN Communications Broadband Communications Types of Broadband Communications Ver. 1.0 Session 10 Slide 27 of 52
  • 28. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Local Area Networks (LANs) • A LAN is a network that spans a small area, such as a single building, floor, or room. LAN 1 floor LAN 2 floor Ver. 1.0 Session 10 Slide 28 of 52
  • 29. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Wide Area Networks (WANs) • A WAN is a network that spans multiple geographic locations. Long-range transmissions LAN 1 LAN 3 LAN 2 Ver. 1.0 Session 10 Slide 29 of 52
  • 30. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Ethernet • An Ethernet network is a popular LAN implementation. • Ethernet network consists of: Adapters Contention-based media access Twisted pair, coax, or fiber media Ethernet adapter Media types Ethernet Contention-based media adapter access Ver. 1.0 Session 10 Slide 30 of 52
  • 31. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Dial-up Connections • The dial-up connections are network connections that use telecommunications media. Telecommunications media Ver. 1.0 Session 10 Slide 31 of 52
  • 32. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Wireless Connections • The wireless connections transmit signals without using physical network media. Infrared Satellite Radio Ver. 1.0 Session 10 Slide 32 of 52
  • 33. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives 802.11 Wireless Standards The 802.11 standard is a family of specifications for wireless LAN technology. 802.11 – IEEE working group Important standards within the group: • 802.11 • 802.11a • 802.11b (“Wi-Fi”) • 802.11e • 802.11g Ver. 1.0 Session 10 Slide 33 of 52
  • 34. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Wireless Access Points (WAPs) • A Wireless Access Point (WAP) a device: Provides connection between wireless devices Enables wireless networks to connect to wired networks WAP Ver. 1.0 Session 10 Slide 34 of 52
  • 35. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Bluetooth Communications Bluetooth is a wireless radio protocol. 30 feet Ver. 1.0 Session 10 Slide 35 of 52
  • 36. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Infrared Connections Infrared is a form of wireless connection in which signals are sent via pulses of infrared light. Infrared receiver Infrared mouse Ver. 1.0 Session 10 Slide 36 of 52
  • 37. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Cellular WAN Communications A cellular WAN technology uses cellular radio signals to transmit data over the cellular telephone system. Cell Cell Cell Ver. 1.0 Session 10 Slide 37 of 52
  • 38. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Broadband Communications Broadband is a category of network transmission technologies. Multiple channels Ver. 1.0 Session 10 Slide 38 of 52
  • 39. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Types of Broadband Communications DSL Types of broadband communications are: DSL modem Phone company Cable Cable modem Cable TV provider Satellite ISDN – Legacy ISDN ISDN switch adapter Ver. 1.0 Session 10 Slide 39 of 52
  • 40. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Internet Technologies For learning internet technologies, you need to understand the following: Internet Service Providers (ISPs) SMTP POP3 IMAP4 HTML HTTP SSL HTTPS Telnet FTP Voice Over IP (VoIP) Ver. 1.0 Session 10 Slide 40 of 52
  • 41. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Internet Service Providers (ISPs) • An Internet Service Provider (ISP) is a company that provides Internet access. Broadband or dial-up ISP connection Ver. 1.0 Session 10 Slide 41 of 52
  • 42. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives SMTP Simple Mail Transfer Protocol (SMTP) sends email Client to server Between server Mail forwarded between servers Mail from client to server Email server Email server Email client Ver. 1.0 Session 10 Slide 42 of 52
  • 43. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives POP3 Post Office Protocol version 3 (POP3): Helps email client to retrieve email from mail server Transferred to client when requested Stored in mailbox POP3 Email server Email client Ver. 1.0 Session 10 Slide 43 of 52
  • 44. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives IMAP4 Internet Mail Access Protocol version 4 (IMAP4): Helps web browser to retrieve messages from a mail server Client works with mail as if local Mail managed on server IMAP4 server Email client Ver. 1.0 Session 10 Slide 44 of 52
  • 45. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives HTML Hyper Text Markup Language (HTML) is the language to create web based documents. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> Page <title>Simple HTML Page</title> structure <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body> <p> This is the text of the web page. Page content </p> </body> </html> Ver. 1.0 Session 10 Slide 45 of 52
  • 46. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives HTTP Hypertext Transfer Protocol (HTTP): TCP/IP service Helps clients to connect and interact with websites Web client Web server Ver. 1.0 Session 10 Slide 46 of 52
  • 47. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives SSL • Secure Sockets Layer (SSL): A security protocol Combines digital certificates with public-key data encryption for authentication Request secure connection Send certificate and public key Negotiate encryption Web client SSL-enabled web server Ver. 1.0 Session 10 Slide 47 of 52
  • 48. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives HTTPS Hypertext Transfer Protocol Secure (HTTPS) is a secure version of HTTP SSL Ver. 1.0 Session 10 Slide 48 of 52
  • 49. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Telnet Telnet: A terminal emulation protocol Helps user to simulate a session on a remote host Telnet daemon C:> telnet 10.1.1.3 Password: Ver. 1.0 Session 10 Slide 49 of 52
  • 50. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives FTP File Transfer Protocol (FTP): Helps upload or download files from an FTP file server FTP daemon FTP utility Transfer files Ver. 1.0 Session 10 Slide 50 of 52
  • 51. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Voice Over IP (VoIP) Voice over IP (VoIP) is a transmission medium in which voice signals are transmitted over IP data networks. Voice signals IP network Data signals Ver. 1.0 Session 10 Slide 51 of 52
  • 52. CompTIA A+ Certification: A Comprehensive Approach Installing Windows XP Professional Using Attended Installationfor all 2006 Exam Objectives Summary In this session, you learned that: There are various network related concepts, such as network models and network connection types. Network connections uses different kind of cables and connectors. Network uses network protocols and address for setting up communication between computers. Network connectivity processes uses LAN and WAN concepts. ISPs provides internet technology related supports. Ver. 1.0 Session 10 Slide 52 of 52