... PM ii Cisco NetworkingAcademyProgram CCNA 1 and 2 Companion GuideThird Edition Cisco Systems, Inc. Cisco NetworkingAcademy Program Copyright â 2003 Cisco Systems, Inc.Published by: Cisco ... Tuesday, May 20, 2003 2:53 PM CiscoNetworkingAcademyProgram CCNA 1 and 2 Companion GuideThird Edition Cisco Systems, Inc. Cisco NetworkingAcademyProgram Cisco Press201 West 103rd StreetIndianapolis, ... 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. ... xxviiIntroduction Cisco NetworkingAcademyProgramCCNA 1 and 2 Companion Guide, Third Edition,supplements your classroom and laboratory experience with the CiscoNetworking Academy Program, whose...
... “Managing Cisco IOS Software,” examines the stages of the router boot sequence. It also covers how to use a variety of Cisco IOS Software source options, execute commands to load Cisco IOS ... Module 5 content from the CCNA 2 online curriculum.■ Chapter 15, “Routing and Routing Protocols,” covers the router’s use and oper-ations in performing the key internetworking function of the ... chapter corresponds to the Module 7 content from the CCNA 2 online curriculum.This chapter corresponds to the Module 7 content from the CCNA 2 online curriculum.■ Chapter 17, “TCP/IP Error...
... software program that allows the user to view and print Adobe Portable Document Format (PDF) files.■ Windows Media Player—A software program that allows the user to play audio and video files.■ Quicktime—A ... display graphics and play sound, movies, and other multimedia files. Hyperlinks are computer program commands that point to other HTML files on a web server or other places in the same documents, ... Tuesday, May 20, 2003 2:53 PM 16 Chapter 1: Introduction to Networking determine if there is connectivity to a destination. The ping command is used to test the NIC transmit/receive function,...
... browsers display file- download speeds in kilobytes per second. This means that with a 45-kbps connec-tion, the download speed would be a maximum of 5.76 kBps. In practice, this download speed ... binary form and vice versa is a common task when dealing with the configuration register in Cisco routers. Cisco routers have a configuration register that is 16 bits long. That 16-bit binary number ... Value1286432168421Example: 10110000101101102.book Page 23 Tuesday, May 20, 2003 2:53 PM 24 Chapter 1: Introduction to Networking Example:1A2C = (1 ∗ 163= 65536) + (10(A) ∗ 162= 2560) + (2 ∗ 161= 32) + (12(C)...
... ping command is a simple way of testing connectivity.■ Software allows the user to interface with the hardware. In networking, web browsers and e-mail are the most commonly used software programs.■ ... device.plug-in Software or a program that can easily be installed and used as part of a web browser.1102.book Page 37 Tuesday, May 20, 2003 2:53 PM 34 Chapter 1: Introduction to Networking ■ Computers ... writes data on a hard disk. The primary storage device in the computer.hyperlink A computer programcommand that points to other HTML files on a web server or other places on the same documents....
... securely.Remote Officewith Cisco RouterRegional Officewith Cisco PIXFirewallPOPCorporateBusiness Partnerwith Cisco RouterSOHO with Cisco ISDN/DSL RouterMobile Workerwith Cisco Secure VPN Client ... PM Networking Terminology 55Figure 2-10 Data CenterFor example, when downloading a movie from an Internet service provider (ISP), instead of waiting for hours for the big movie file to download, ... Laptop computer Cisco PIXFirewallVPNConcentratorPerimeterRouterMain SiteVPNIntranet VPNExtranet VPNIntranet VPNAccess VPN1102.book Page 57 Tuesday, May 20, 2003 2:53 PM Networking Terminology...
... LaneSuperhighway Networking Devices Are Like On Ramps, Traffic Signals, Signs, Maps, and PolicePackets Are Like VehiclesSTOP1102.book Page 60 Tuesday, May 20, 2003 2:53 PM 62 Chapter 2: Networking ... primarily with digital net-working, the term bandwidth refers to digital bandwidth. Networking ModelsLearning about networking is easier when you start with theory and concepts and then move on ... design, because network bandwidth is never greater than the limits imposed by the chosen medium and networking technologies. Figure 2-15 lists some of the variables that affect throughput. However,...
... models that use layers are the Open System Inter-connection (OSI) reference model and the TCP/IP reference model.The OSI Reference ModelThe early development of LANs, MANs, and WANs was chaotic ... applica-tions outside the OSI model. Examples of such applications are spreadsheet programs and word-processing programs. The application layer establishes the availability of intended communication ... 2-17.1102.book Page 72 Tuesday, May 20, 2003 2:53 PM 74 Chapter 2: Networking FundamentalsDoD (TCP/IP) ModelAlthough the OSI reference model is universally recognized, the historical and techni-cal...
... 20, 2003 2:53 PM 88 Chapter 2: Networking FundamentalsFigure 2-31 Cisco CMTS uBR10012Optical PlatformsSeveral optical platforms are available for optical networking, which is primarily a ... sec-tions provide an overview of some common networking devices.RepeatersRepeaters are networking devices that exist at Layer 1, the physical layer, of the OSI reference model. To understand how a ... enterprise-level switches—perform multilayer functioning. For example, the Cisco 6500 and 8500 series perform some Layer 3 func-tions. The Cisco Catalyst 8500, shown in Figure 2-27, is a Layer 3-enhanced...
... theSame Networking Device1102.book Page 98 Tuesday, May 20, 2003 2:53 PM 90 Chapter 2: Networking FundamentalsFigure 2-33 Cisco PIX FirewallAAA ServersAn AAA server is a server program that ... 96 Chapter 2: Networking FundamentalsFigure 2-42 Star TopologyWhen a star network is expanded to include an additional networking device that is connected to the main networking device, ... Deny All Other Packets1102.book Page 90 Tuesday, May 20, 2003 2:53 PM Networking Models 89Figure 2-32 Optical Platform—The Cisco ONS 15454 DWDM Optical Network SystemSecurity DevicesBecause...
... 106 Chapter 2: Networking Fundamentalssegment In the TCP specification, a logical information group at transport layers of the OSI reference model.session layer Layer 5 of the OSI reference model. ... its own cable. When a star network is expanded to include additional networking devices that are connected to the main networking device, it is called an extended-star topology.■ In a ring ... Layer 7 of the OSI reference model. This layer provides services to application processes (such as e-mail, file transfer, and terminal emulation) that are outside the OSI reference model.bandwidth...
... which provides a foundation for understanding networking at the physical layer of the OSI model. This chapter also dis-cusses different types of networking media that are used at the physical ... theory of electricity, which provides a foundation for understanding networking at the physical layer (Layer 1) of the OSI reference model.Atoms and MoleculesThe basic unit of all matter in ... small grouping called a nucleus. The electron flows freely around this nucleus. When 1102.book Page 115 Tuesday, May 20, 2003 2:53 PM 116 Chapter 3: Networking Mediathese three parts come together,...