... 1 102 .book Page iv Tuesday, May 20, 200 3 2:53 PM CiscoNetworkingAcademy Program CCNA 1 and 2 Companion GuideThird Edition Cisco Systems, Inc. Cisco NetworkingAcademyProgram Cisco Press 201 ... . 154 1 102 .book Page ix Tuesday, May 20, 200 3 2:53 PM ii Cisco NetworkingAcademy Program CCNA 1 and 2 Companion GuideThird Edition Cisco Systems, Inc. Cisco NetworkingAcademy Program Copyright ... Academy program, then you are not preparing with a Cisco trained and authorized NetworkingAcademy provider.For information on the CiscoNetworkingAcademyProgram or to locate a Networking Academy, ...
... educational needs of the internetworking community, Cisco Systems established the CiscoNetworkingAcademy Program. The NetworkingAcademy is a comprehensive learning program that provides students ... the CiscoNetworkingAcademyProgram is in the forefront of this transformation.This Cisco Press title is one of a series of best-selling companion titles for the Cisco Networking Academy Program. ... SerialLine: Switched SerialIBMMainframe 1 102 .book Page xxiii Tuesday, May 20, 200 3 2:53 PM xxviiIntroduction Cisco NetworkingAcademyProgramCCNA 1 and 2 Companion Guide, Third Edition,supplements...
... 1 102 .book Page 2 Tuesday, May 20, 200 3 2:53 PM xxxi■ Chapter 14, “Managing Cisco IOS Software,” examines the stages of the router boot sequence. It also covers how to use a variety of Cisco ... number■ Convert a binary number to a hexadecimal number1 102 .book Page 4 Tuesday, May 20, 200 3 2:53 PM 8 Chapter 1: Introduction to Networking Figure 1-1 Central Processing UnitFigure 1-2 Floppy ... Memory boards with RAM chips plug into the motherboard.1 102 .book Page 8 Tuesday, May 20, 200 3 2:53 PM 6 Chapter 1: Introduction to Networking The Internet is the largest data network in the...
... and performs e-mail, file transfers, and other functions1 102 .book Page 17 Tuesday, May 20, 200 3 2:53 PM 10 Chapter 1: Introduction to Networking Figure 1-4 Expansion SlotMotherboard ComponentsThe ... built-in or adapter card-type NIC.1 102 .book Page 13 Tuesday, May 20, 200 3 2:53 PM Testing Connectivity with Ping 15files and graphics began to be desirable. The 300 bps speed quickly became intolerable, ... intolerable, and modem speeds started to increase. By the 1990s, modems were running at 9 600 bps. They reached the current standard of 56 kbps (56 ,00 0 bps) by 1998.Inevitably, the high-speed services...
... Using the first mask (255 .0. 0 .0) : 00 001 0 10. 001 000 10. 000 101 11. 100 001 10: IP address11111111 .00000000.00000000.00000000 : network mask 00 001 0 10. 00000000.00000000.00000000 is the network part of the ... format, 10. 0 .0. 0 is the network portion of the IP address.Example 2: Using the second mask (255.255 .0. 0): 00 001 0 10. 001 000 10. 000 101 11. 100 001 10: IP address11111111.11111111 .00000000.00000000 : network ... address11111111.11111111 .00000000.00000000 : network mask 00 001 0 10. 001 000 10. 00000000.00000000 is the network part of the address. In dotted-decimal format, 10. 34 .0. 0 is the network portion of the IP address.The...
... (ISDN)■ Digital Subscriber Line (DSL)1 102 .book Page 51 Tuesday, May 20, 200 3 2:53 PM Networking Terminology 55Figure 2- 10 Data CenterFor example, when downloading a movie from an Internet service ... respective intranets. The extranet 1 102 .book Page 55 Tuesday, May 20, 200 3 2:53 PM Networking Terminology 49Starting in the 1960s and continuing through the 1990s, the U.S. Department of Defense ... Laptop computer Cisco PIXFirewallVPNConcentratorPerimeterRouterMain SiteVPNIntranet VPNExtranet VPNIntranet VPNAccess VPN1 102 .book Page 57 Tuesday, May 20, 200 3 2:53 PM Networking Terminology...
... 0s and 1s making up the data. If a discrepancy is found, that packet can be resent.More Information: Cyclical Redundancy Check (Continued)1 102 .book Page 78 Tuesday, May 20, 200 3 2:53 PM Networking ... (Layer 1)OSIApplicationTransportInternetNetwork AccessTCP/IP1 102 .book Page 74 Tuesday, May 20, 200 3 2:53 PM 70 Chapter 2: Networking FundamentalsThe OSI reference model is the primary model ... troubleshoot network problems if they occur dur-ing data packet flow.1 102 .book Page 70 Tuesday, May 20, 200 3 2:53 PM Networking Models 69is responsible for a specific part of network communication....
... PhotoZooms, and e-Lab Activities on the CD-ROM accompanying this book.1 102 .book Page 102 Tuesday, May 20, 200 3 2:53 PM 100 Chapter 2: Networking FundamentalsFigure 2-48 Partial-Mesh TopologyBroadcast ... the InternetD. Provide full-time connectivity to local services1 102 .book Page 107 Tuesday, May 20, 200 3 2:53 PM 102 Chapter 2: Networking Fundamentals■ The term hub is used instead of repeater ... MAN spans a metropolitan area, such as a city or a suburban area.1 102 .book Page 100 Tuesday, May 20, 200 3 2:53 PM Key Terms 103 Key Termsapplication layer Layer 7 of the OSI reference model....