CCNA Routing and Switching Study Guide: Exams 100-101, 200-101, and 200-120

Prepare for the new CCNA exams with this Todd Lammle study guide

Cisco author, speaker, and trainer Todd Lammle is considered the authority on all things networking, and his books have sold almost a million copies worldwide. This all-purpose CCNA study guide methodically covers all the objectives of the ICND1 (100-101) and ICND2 (200-101) exams as well as providing additional insight for those taking CCNA Composite (200-120) exam. It thoroughly examines operation of IP data networks, LAN switching technologies, IP addressing (IPv4/IPv6), IP routing technologies, IP services, network device security, troubleshooting, and WAN technologies.

Valuable study tools such as a companion test engine that includes hundreds of sample questions, a pre-assessment test, and multiple practice exams. Plus, you’ll also get access to hundreds of electronic flashcards, author files, and a network simulator.

• CCNA candidates may choose to take either the ICND1(100-101) and ICND2 (200-101) exams or the CCNA Composite exam (200-120); this study guide covers the full objectives of all three
• Written by bestselling Sybex study guide author Todd Lammle, an acknowledged authority on all things Cisco
• Covers essential Cisco networking topics such as operating an IP data network, IP addressing, switching and routing technologies, troubleshooting, network device security, and much more
• Includes a comprehensive set of study tools including practice exams, electronic flashcards, comprehensive glossary of key terms, videos, and a network simulator that can be used with the book’s hands-on labs
• Bonus Content: Access to over 40 MicroNugget videos from CBT Nuggets

CCNA Routing and Switching Study Guide prepares you for CCNA certification success.

Introduction xxvii

ICND1 (100-101) Exam Objectives xxxviii

ICND2 (200-101) Exam Objectives xliv

CCNA Composite (200-120) Exam Objectives xlvii

Assessment Test lviii

Part I ICND1 1

Chapter 1 Internetworking 3

Internetworking Basics 4

Internetworking Models 12

The OSI Reference Model 14

Summary 29

Exam Essentials 30

Written Labs 32

Review Questions 35

Chapter 2 Ethernet Networking and Data Encapsulation 41

Ethernet Networks in Review 42

Ethernet Cabling 59

Data Encapsulation 66

The Cisco three-layer Hierarchical Model 70

Summary 73

Exam Essentials 73

Written Labs 74

Review Questions 81

Chapter 3 Introduction to TCP/IP 87

Introducing TCP/IP 88

TCP/IP and the DoD Model 89

IP Addressing 118

IPv4 Address Types 126

Multicast Address 128

Summary 129

Exam Essentials 130

Written Labs 132

Review Questions 134

Chapter 4 Easy Subnetting 139

Subnetting Basics 140

How to Create Subnets 142

Summary 170

Exam Essentials 170

Written Labs 171

Review Questions 174

Chapter 5 VLSMs, Summarization, and Troubleshooting TCP/IP 181

Variable Length Subnet Masks (VLSMs) 182

Summarization 193

Troubleshooting IP Addressing 196

Summary 203

Exam Essentials 204

Written Lab 5 205

Review Questions 206

Chapter 6 Cisco’s Internetworking Operating System (IOS) 213

The IOS User Interface 215

Command-line Interface (CLI) 219

Administrative Configurations 228

Router and Switch Interfaces 241

Viewing, Saving, and Erasing Configurations 250

Summary 264

Exam Essentials 265

Written Lab 6 268

Hands-on Labs 268

Review Questions 277

Chapter 7 Managing a Cisco Internetwork 283

The Internal Components of a Cisco Router and Switch 284

Configuring DHCP 290

Network Time Protocol (NTP) 293

Using Cisco Discovery Protocol (CDP) 295

Using Telnet 303

Resolving Hostnames 307

Checking Network Connectivity and Troubleshooting 311

Summary 317

Exam Essentials 317

Written Lab 7 319

Hands-on Labs 320

Review Questions 325

Chapter 8 IP Routing 331

Routing Basics 333

The IP Routing Process 335

Configuring IP Routing 346

Configuring IP Routing in Our Network 356

Dynamic Routing 365

Routing Information Protocol (RIP) 367

Summary 373

Exam Essentials 374

Written Lab 8 376

Hands-on Labs 376

Review Questions 380

Chapter 9 Open Shortest Path First (OSPF) 385

Open Shortest Path First (OSPF) Basics 386

Configuring OSPF 393

OSPF and Loopback Interfaces 402

Verifying OSPF Configuration 405

Summary 411

Exam Essentials 412

Written Lab 9 413

Hands-on Labs 413

Review Questions 417

Chapter 10 Layer 2 Switching 425

Switching Services 426

Configuring Catalyst Switches 436

Summary 447

Exam Essentials 447

Written Lab 10 448

Hands-on Labs 448

Review Questions 452

Chapter 11 VLANs and InterVLAN Routing 459

VLAN Basics 460

Identifying VLANs 465

Routing between VLANs 469

Configuring VLANs 472

Summary 487

Exam Essentials 488

Written Lab 11 489

Hands-on Labs 489

Review Questions 494

Chapter 12 Security 501

Perimeter, Firewall, and Internal Routers 502

Introduction to Access Lists 503

Standard Access Lists 507

Extended Access Lists 515

Monitoring Access Lists 526

Summary 528

Exam Essentials 529

Written Lab 12 530

Hands-on Labs 530

Review Questions 535

Chapter 13 Network Address Translation (NAT) 541

When Do We Use NAT? 542

Types of Network Address Translation 544

NAT Names 544

How NAT Works 545

Testing and Troubleshooting NAT 550

Summary 555

Exam Essentials 556

Written Lab 13 557

Hands-on Labs 557

Review Questions 564

Chapter 14 Internet Protocol Version 6 (IPv6) 569

Why Do We Need IPv6? 571

The Benefits and Uses of IPv6 571

IPv6 Addressing and Expressions 573

How IPv6 Works in an Internetwork 577

IPv6 Routing Protocols 586

Configuring IPv6 on Our Internetwork 588

Configuring Routing on Our Internetwork 591

Summary 599

Exam Essentials 599

Written Labs 601

Hands-on Labs 602

Review Questions 607

Part II ICND2 613

Chapter 15 Enhanced Switched Technologies 615

Spanning Tree Protocol (STP) 616

Types of Spanning-tree Protocols 623

Modifying and Verifying the Bridge ID 631

Spanning-tree Failure Consequences 636

PortFast and BPDU Guard 638

EtherChannel 642

Summary 646

Exam Essentials 647

Written Lab 1 648

Review Questions 656

Chapter 16 Managing Cisco Devices 661

The Internal Components of a

The Router Boot Sequence 663

Managing Configuration Register 664

Backing Up and Restoring the Cisco IOS 671

Licensing 682

Summary 688

Exam Essentials 689

Written Labs 691

Hands-on Labs 692

Review Questions 694

Chapter 17 IP Services 699

Client Redundancy Issues 700

Introducing First Hop Redundancy Protocol (FHRP) 702

Hot Standby Router Protocol (HSRP) 704

Virtual Router Redundancy Protocol 715

Gateway Load Balancing Protocol 716

Syslog 721

SNMP 726

NetFlow 730

Summary 734

Exam Essentials 734

Written Lab 3 735

Review Questions 736

Chapter 18 Troubleshooting IP, IPv6, and VLANs 741

Troubleshooting IP Network Connectivity 742

Troubleshooting IPv6 Network Connectivity 754

Troubleshooting VLAN Connectivity 763

Summary 776

Exam Essentials 777

Written Lab 4 778

Review Questions 779

Chapter 19 Enhanced IGRP 783

EIGRP Features and Operations 784

Configuring EIGRP 792

Verifying and Troubleshooting EIGRP 811

EIGRPv6 828

Summary 833

Exam Essentials 834

Written Lab 5 835

Hands-on Labs 835

Review Questions 838

Chapter 20 Multi-Area OSPF 847

OSPF Scalability 848

Categories of Multi-area Components 850

Basic Multi-area Configuration 857Verifying and Troubleshooting

Troubleshooting OSPF Scenario 868

OSPFv3 876

Summary 881

Exam Essentials 881

Written Lab 6 883

Hands-on Labs 883

Review Questions 890

Chapter 21 Wide Area Networks 897

Introduction to Wide Area Networks 898

Cable and DSL 905

Cabling the Serial Wide Area Network 910

High-Level Data-Link Control (HDLC) Protocol 912

Point-to-Point Protocol (PPP) 914

Verifying and Troubleshooting Serial Links 918

Frame Relay 923

Virtual Private Networks 942

GRE Tunnels 946

Summary 951

Exam Essentials 951

Written Lab 7 953

Hands-on Labs 953

Review Questions 961

Appendix A Answers to Written Labs 967

Chapter 1: Internetworking 968

Chapter 2: Ethernet Networking and Data Encapsulation 970

Chapter 3: Introduction to TCP/IP 974

Chapter 4: Easy Subnetting 975

Chapter 5: VLSMs, Summarization and Troubleshooting TCP/IP 977

Chapter 6: Cisco’s Internetworking Operating System (IOS) 978

Chapter 7: Managing a Cisco Internetwork 978

Appendix C Disabling and Configuring Network Services 1029

Blocking SNMP Packets 1030

Disabling Echo 1030

Turning off BootP and Auto-Config 1031

Disabling the HTTP Interface 1032

Disabling IP Source Routing 1032

Disabling Proxy ARP 1032

Disabling Redirect Messages 1032

Disabling the Generation of ICMP Unreachable Messages 1033

Disabling Multicast Route Caching 1033

Disabling the Maintenance Operation Protocol (MOP) 1033

Turning Off the X.25 PAD Service 1034

Enabling the Nagle TCP Congestion Algorithm 1034

Logging Every Event 1034

Disabling Cisco Discovery Protocol 1035

Disabling the Default Forwarded UDP Protocols 1035

Cisco’s Auto Secure 1036

Appendix D About the Additional Study Tools 1041

Additional Study Tools 1042

Minimum System Requirements 1043

Using the Study Tools 1044

Troubleshooting 1044

Index 1045