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Introduction to Networks Companion Guide v5.1

Introduction to Networks Companion Guide v5.1

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Description

  • Copyright 2016
  • Dimensions: 8" x 9-1/8"
  • Pages: 704
  • Edition: 1st
  • eBook (Watermarked)
  • ISBN-10: 0-13-451245-6
  • ISBN-13: 978-0-13-451245-7


Introduction to Networks Companion Guide v5.1 is the official supplemental textbook for the Introduction to Networks course in the Cisco® Networking Academy® CCNA® Routing and Switching curriculum. The course introduces the architecture, structure, functions, components, and models of the Internet and computer networks. The principles of IP addressing and fundamentals of Ethernet concepts, media, and operations are introduced to provide a foundation for the curriculum. By the end of the course, you will be able to build simple LANs, perform basic configurations for routers and switches, and implement IP addressing schemes.

 

The Companion Guide is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time.

 

The book’s features help you focus on important concepts to succeed in this course:


  • Chapter Objectives—Review core concepts by answering the focus questions listed at the beginning of each chapter.
  • Key Terms—Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter.
  • Glossary—Consult the comprehensive Glossary with more than 250 terms.
  • Summary of Activities and Labs—Maximize your study time with this complete list of all associated practice exercises at the end of each chapter.
  • Check Your Understanding—Evaluate your readiness with the end-ofchapter questions that match the style of questions you see in the online course quizzes. The answer key explains each answer.


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Table of Contents


    Introduction xxiv


Chapter 1 Explore the Network 1


    Objectives 1


    Key Terms 1


    Introduction (1.0.1.1) 3


    Globally Connected (1.1) 4


        Networking Today (1.1.1) 4


        Providing Resources in a Network (1.1.2) 7


    LANs, WANs, and the Internet (1.2) 11


        Network Components (1.2.1) 11


        LANs and WANs (1.2.2) 20


        The Internet, Intranets, and Extranets (1.2.3) 23


        Internet Connections (1.2.4) 25


    The Network as a Platform (1.3) 28


        Converged Networks (1.3.1) 28


        Reliable Network (1.3.2) 30


    The Changing Network Environment (1.4) 35


        Network Trends (1.4.1) 35


        Networking Technologies for the Home (1.4.2) 39


        Network Security (1.4.3) 42


        Network Architecture (1.4.4) 44


    Summary (1.5) 47


        Warriors of the Net (1.5.1.2) 47


        Conclusion (1.5.1.3) 47


    Practice 48


        Class Activities 48


        Labs 49


        Packet Tracer Activities 49


    Check Your Understanding Questions 49


Chapter 2 Configure a Network Operating System 53


    Objectives 53


    Key Terms 53


    Introduction (2.0.1.1) 54


    IOS Bootcamp (2.1) 54


        Cisco IOS (2.1.1) 55


        Cisco IOS Access (2.1.2) 58


        Navigate the IOS (2.1.3) 61


        The Command Structure (2.1.4) 64


    Basic Device Configuration (2.2) 68


        Hostnames (2.2.1) 68


        Limit Access to Device Configurations (2.2.2) 70


        Save Configurations (2.2.3) 72


    Address Schemes (2.3) 78


        Ports and Addresses (2.3.1) 78


        Configure IP Addressing (2.3.2) 81


    Verifying Connectivity (2.3.3) 85


    Summary (2.4) 87


    Practice 88


        Class Activities 88


        Labs 88


        Packet Tracer Activities 88


    Check Your Understanding Questions 89


Chapter 3 Network Protocols and Communications 91


    Objectives 91


    Key Terms 91


    Introduction (3.0) 92


    Rules of Communication (3.1) 92


        The Rules (3.1.1) 93


    Network Protocols and Standards (3.2) 100


        Protocols (3.2.1) 100


        Protocol Suites (3.2.2) 105


        Standard Organizations (3.2.3) 114


        Reference Models (3.2.4) 118


    Data Transfer in the Network (3.3) 123


        Data Encapsulation (3.3.1) 123


        Data Access (3.3.2) 127


    Summary (3.4) 135


    Practice 136


        Class Activities 136


        Labs 136


        Packet Tracer Activities 136


    Check Your Understanding Questions 137


Chapter 4 Network Access 141


    Objectives 141


    Key Terms 141


    Introduction (4.0) 143


    Physical Layer Protocols (4.1) 143


        Physical Layer Connection (4.1.1) 143


        Purpose of the Physical Layer (4.1.2) 146


        Physical Layer Characteristics (4.1.3) 150


    Network Media (4.2) 155


        Copper Cabling (4.2.1) 155


        UTP Cabling (4.2.2) 163


        Fiber-Optic Cabling (4.2.3) 168


        Wireless Media (4.2.4) 176


    Data Link Layer Protocols (4.3) 179


        Purpose of the Data Link Layer (4.3.1) 179


    Media Access Control (4.4) 185


        Topologies (4.4.1) 185


        WAN Topologies (4.4.2) 187


        LAN Topologies (4.4.3) 190


        Data Link Frame (4.4.4) 196


    Summary (4.5) 203


    Practice 204


        Class Activities 204


        Labs 204


        Packet Tracer Activities 205


    Check Your Understanding Questions 205


Chapter 5 Ethernet 209


    Objectives 209


    Key Terms 209


    Introduction (5.0) 210


    Ethernet Protocol (5.1) 211


        Ethernet Frame (5.1.1) 211


        Ethernet MAC Addresses (5.1.2) 216


    LAN Switches (5.2) 226


        The MAC Address Table (5.2.1) 226


        Switch Port Settings (5.2.3) 244


    Address Resolution Protocol (5.3) 247


        MAC and IP (5.3.1) 247


        ARP (5.3.2) 250


        ARP Spoofing (5.3.3.2) 265


    Summary (5.4) 266


    Practice 267


        Class Activities 267


        Labs 267


        Packet Tracer Activities 267


    Check Your Understanding Questions 268


Chapter 6 Network Layer 273


    Objectives 273


    Key Terms 273


    Introduction (6.0) 274


    Network Layer Protocols (6.1) 275


        Network Layer in Communications (6.1.1) 275


        Characteristics of the IP Protocol (6.1.2) 277


        IPv4 Packet (6.1.3) 281


        IPv6 Packet (6.1.4) 283


    Routing (6.2) 287


        How a Host Routes (6.2.1) 287


        Router Routing Tables (6.2.2) 291


    Routers (6.3) 296


        Anatomy of a Router (6.3.1) 296


        Router Boot-up (6.3.2) 303


    Configure a Cisco Router (6.4) 308


        Configure Initial Settings (6.4.1) 308


        Configure Interfaces (6.4.2) 312


        Configure the Default Gateway (6.4.3) 314


    Summary (6.5) 319


    Practice 320


        Class Activities 321


        Labs 321


        Packet Tracer Activities 321


    Check Your Understanding Questions 321


Chapter 7 IP Addressing 325


    Objectives 325


    Key Terms 325


    Introduction (7.0) 327


    IPv4 Network Addresses (7.1) 327


        Binary and Decimal Conversion (7.1.1) 327


        IPv4 Address Structure (7.1.2) 338


        IPv4 Unicast, Broadcast, and Multicast (7.1.3) 345


        Types of IPv4 Addresses (7.1.4) 350


    IPv6 Network Addresses (7.2) 357


        IPv4 Issues (7.2.1) 357


        IPv6 Addressing (7.2.2) 360


        Types of IPv6 Addresses (7.2.3) 364


        IPv6 Multicast Addresses (7.2.5) 385


    Connectivity Verification (7.3) 388


        ICMP (7.3.1) 388


        Testing and Verification (7.3.2) 392


    Summary (7.4) 398


    Practice 399


        Class Activities 399


        Labs 400


        Packet Tracer Activities 400


    Check Your Understanding Questions 400


Chapter 8 Subnetting IP Networks 403


    Objectives 403


    Key Terms 403


    Introduction (8.0) 404


    Subnetting an IPv4 Network (8.1) 405


        Network Segmentation (8.1.1) 405


        Subnetting an IPv4 Network (8.1.2) 408


        Subnetting a /16 and /8 Prefix (8.1.3) 421


        Subnetting to Meet Requirements (8.1.4) 427


        Benefits of Variable Length Subnet Masking (8.1.5) 432


    Addressing Schemes (8.2) 440


        Structured Design (8.2.1) 440


    Design Considerations for IPv6 (8.3) 443


        Subnetting an IPv6 Network (8.3.1) 443


    Summary (8.4) 449


    Practice 450


        Class Activities 450


        Labs 451


        Packet Tracer Activities 451


    Check Your Understanding Questions 451


Chapter 9 Transport Layer 455


    Objectives 455


    Key Terms 455


    Introduction (9.0) 456


    Transport Layer Protocols (9.1) 457


        Transportation of Data (9.1.1) 457


        TCP and UDP Overview (9.1.2) 464


    TCP and UDP (9.2) 474


        TCP Communication Process (9.2.1) 474


        UDP Communication (9.2.3) 488


        TCP or UDP (9.2.4) 491


    Summary (9.3) 494


    Practice 495


        Class Activities 496


        Labs 496


        Packet Tracer Activities 496


    Check Your Understanding Questions 496


Chapter 10 Application Layer 501


    Objectives 501


    Key Terms 501


    Introduction (10.0) 502


    Application Layer Protocols (10.1) 502


        Application, Presentation, and Session (10.1.1) 502


        How Application Protocols Interact with End-User Applications (10.1.2) 506


    Well-Known Application Layer Protocols and Services (10.2) 510


        Web and Email Protocols (10.2.1) 510


        IP Addressing Services (10.2.2) 516


        File Sharing Services (10.2.3) 525


    Summary (10.3) 529


    Practice 530


        Class Activities 530


        Labs 530


        Packet Tracer Activities 531


    Check Your Understanding Questions 531


Chapter 11 Build a Small Network 533


    Objectives 533


    Key Terms 533


    Introduction (11.0) 534


    Network Design (11.1) 534


        Devices in a Small Network (11.1.1) 534


        Small Network Applications and Protocols (11.1.2) 539


        Scale to Larger Networks (11.1.3) 544


    Network Security (11.2) 547


        Security Threats and Vulnerabilities (11.2.1) 547


        Network Attacks (11.2.2) 550


        Network Attack Mitigation (11.2.3) 556


        Backup and Restore Configuration Files (11.2.5) 564


    Network Testing and Verification (11.3) 572


        The ping Command (11.3.1) 572


        The traceroute and tracert Command (11.3.2) 577


        Show Commands (11.3.3) 581


        Host and IOS Commands (11.3.4) 585


        Debugging (11.3.5) 592


    Network Troubleshooting (11.4) 594


        Troubleshooting Methodologies (11.4.1) 594


        Troubleshoot Cables and Interfaces (11.4.2) 598


        Troubleshooting Scenarios (11.4.3) 600


    Summary (11.5) 606


    Practice 608


        Class Activities 608


        Labs 608


        Packet Tracer Activities 608


    Check Your Understanding Questions 609


Appendix A 613


Glossary 627


TOC, 9781587133572, 5/19/2016


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