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


Todd Lammle's focused, concise review guide, updated for the latest CCNA exams

CCNA is one of the most sought after certifications for IT professionals. If you're preparing for the CCNA Routing and Switching certification, this Sybex review guide offers the best quick review available. Organized by exam objective, it’s the perfect supplement to other learning tools, including the Sybex CCNA Routing and Switching Study Guide (ISBN: 9781118749616). All exam topics from exams ...

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Todd Lammle's focused, concise review guide, updated for the latest CCNA exams

CCNA is one of the most sought after certifications for IT professionals. If you're preparing for the CCNA Routing and Switching certification, this Sybex review guide offers the best quick review available. Organized by exam objective, it’s the perfect supplement to other learning tools, including the Sybex CCNA Routing and Switching Study Guide (ISBN: 9781118749616). All exam topics from exams 100-101, 200-101, and 200-120 are thoroughly covered, and additional study materials including bonus exams, electronic flashcards, and a searchable glossary of terms are also available.

  • Organized by exam objectives, this Sybex review guide provides a thorough and intensive review of all topics required for the CCNA Routing and Switching certification exams
  • Lead author Todd Lammle is a Cisco networking authority and the bestselling author of numerous Cisco exam-prep books
  • Covers exams 100-101, 200-101, and 200-120, and is a perfect companion to Sybex’s CCNA Routing and Switching Study Guide
  • Additional study materials are available, including bonus practice exams, electronic flashcard questions, and a glossary of terms in searchable PDF form

Using the CCNA Routing and Switching Review Guide will boost your confidence as you approach exams 100-101, 200-101, and 200-120.

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Product Details

  • ISBN-13: 9781118789810
  • Publisher: Wiley
  • Publication date: 1/13/2014
  • Edition number: 1
  • Pages: 528
  • Sales rank: 484,290
  • Product dimensions: 11.00 (w) x 9.00 (h) x 1.40 (d)

Meet the Author

Todd Lammle, CCSI, CCNA/CCNP R/S, CCNA/CCNP Voice,CCNA/CCNP Data Center, CCNA/CCNP Wireless, CCNA/CCNP Security, isthe authority on Cisco networking. He is an experiencednetworking engineer with practical experience working on thelargest networks in the world at such companies as Xerox, HughesAircraft, Texaco, AAA, Cisco, and Toshiba. Todd has published over60 books, including the popular and bestselling CCNA: CiscoCertified Network Associate Study Guide. You can reach Toddthrough his forum and blog at

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Table of Contents

Introduction xvii

Chapter 1 Operation of IP Data Networks 1

Operation of IP Data Networks 2

Exam Essentials 3

Recognize the Purpose and Functions of Various Network Devices Such as Routers, Switches, Bridges, and Hubs 3

Exam Essentials 6

Select the Components Required to Meet a Given Network Specification 7

Exam Essentials 9

Identify Common Applications and Their Impact on the Network 9

Exam Essentials 18

Describe the Purpose and Basic Operation of the Protocols in the OSI and TCP/IP Models 18

The Layered Approach 18

Advantages of Reference Models 19

The OSI Reference Model 19

Exam Essentials 32

Predict the Data Flow between Two Hosts across a Network 33

The IP Routing Process 35

Exam Essentials 41

Identify the Appropriate Media, Cables, Ports, and Connectors to Connect Cisco Network Devices to Other Network Devices and Hosts in a LAN 42

Ethernet Cabling 43

Fiber Optic 49

Exam Essentials 50

Review Questions 51

Chapter 2 LAN Switching Technologies 55

Determine the Technology and Media Access Control Method for Ethernet Networks 57


Half- and Full-Duplex Ethernet 59

Exam Essentials 61

Identify Basic Switching Concepts and the Operation of Cisco Switches 61

Collision Domains 61

Broadcast Domains 63

Types of Switching 64

CAM Table 64

Exam Essentials 67

Configure and Verify Initial Switch Configuration Including Remote Access Management 68

Cisco IOS Commands to Perform Basic Switch Setup 68

Entering the CLI 69

Overview of IOS Modes 69

CLI Prompts 70

Editing and Help Features 72

Administrative Configurations 77

Exam Essentials 87

Verify Network Status and Switch Operation Using Basic Utilities Such as Ping, Telnet, and SSH 89

ping Command 89

traceroute Command 90

Debugging 91

show processes Command 93

Exam Essentials 94

Identify Enhanced Switching Technologies 94



Etherchannels 98

Exam Essentials 100

Describe How VLANs Create Logically Separate Networks and the Need for Routing between Them 100

Broadcast Control 102

Explain Network Segmentation and Basic Traffic Management Concepts 103

Frame Tagging 104

VLAN Identification Methods 106

Exam Essentials 107

Configure and Verify VLANs 107

Assigning Switch Ports to VLANs 110

Exam Essentials 112

Configure and Verify Trunking on Cisco Switches 112

Defining the Allowed VLANs on a Trunk 114

Changing or Modifying the Trunk Native VLAN 115

DTP 116

Auto Negotiation 116

Exam Essentials 118

Configure and Verify PVSTP Operation 118

Describe Root Bridge Election 124

Spanning Tree Mode 130

Exam Essentials 131

Review Questions 132

Chapter 3 IP Addressing (IPv4 / IPv6) 135

Describe the Operation and Necessity of Using Private and Public IP Addresses for IPv4 Addressing 136

IP Terminology 136

The Hierarchical IP Addressing Scheme 137

Private IP Addresses (RFC 1918) 142

IPv4 Address Types 143

Exam Essentials 143

Identify the Appropriate IPv6 Addressing Scheme to Satisfy Addressing Requirements in a LAN/WAN Environment 143

Shortened Expression 144

Exam Essentials 145

Identify the Appropriate IPv4 Addressing Scheme Using VLSM and Summarization to Satisfy Addressing Requirements in a LAN/WAN Environment 145

VLSM Design 147

Implementing VLSM Networks 147

Exam Essentials 148

Describe the Technological Requirements for Running IPv6 in Conjunction with IPv4 Such as Dual Stack 150

Dual Stacking (ISATAP) 152

6to4 Tunneling 153

IPv6 Routing 154

Exam Essentials 156

Describe IPv6 Addresses 156

Global Unicast 156

Multicast 157

Link Local 157

Unique Local 157

eui 64 157

autoconfiguration 159

Exam Essentials 160

Review Questions 161

Chapter 4 IP Routing Technologies 163

Describe Basic Routing Concepts 166

Packet Forwarding 168

Router Lookup Process 169

Exam Essentials 169

Describe the Boot Process of Cisco IOS Routers 169

POST 170

Router Bootup Process 170

Exam Essentials 170

Configure and Verify Utilizing the CLI to Set Basic Router Configuration 171

Entering the CLI 171

Overview of Router Modes 171

CLI Prompts 172

Cisco IOS Commands to Perform Basic Router Setup 174

Encrypting Your Passwords 182

Descriptions 184

Exam Essentials 185

Configure and Verify Operation Status of a Device Interface, Both Serial and Ethernet 186

Bringing Up an Interface 189

Exam Essentials 194

Verify Router Configuration and Network Connectivity 195

Cisco IOS Commands to Review Basic Router Information and Network Connectivity 195

Exam Essentials 205

Configure and Verify Routing Configuration for a Static or Default Route Given Specific Routing Requirements 205

Static Routing 206

Default Routing 207

Exam Essentials 208

Manage Cisco IOS Files 208

Boot Preferences 209

Cisco IOS Image(s) 215

Licensing 220

Exam Essentials 226

Differentiate Methods of Routing and Routing Protocols 227

Static vs. Dynamic 227

Link State vs. Distance Vector 228

Administrative Distance 228

Split Horizon 229

Metric 229

Next Hop 229

IP Routing Table 230

Passive Interfaces 230

Exam Essentials 230

Configure and Verify OSPF (Single Area) 231

Benefit of Single Area 235

Neighbor Adjacencies 235

OSPF States 236

Discuss Multi Area 238

Configure OSPF v2 238

Configure OSPF v3 243

Router ID 244

Passive Interface 245

LSA Types 245

Exam Essentials 246

Configure and Verify EIGRP (Single AS) 246

Feasible Distance / Feasible Successors / Administrative Distance 250

Feasibility Condition 250

Metric Composition 250

Router ID 251

Auto Summary 251

Path Selection 251

Load Balancing 252

Passive Interface 253

Exam Essentials 253

Configure and Verify InterVLAN Routing (Router on a Stick) 254

Sub Interfaces 258

Upstream Routing 258

Encapsulation 259

Exam Essentials 260

Configure SVI Interfaces 260

Exam Essentials 261

Review Questions 262

Chapter 5 IP Services 265

Configure and Verify DHCP (IOS Router) 267

Configuring Router Interfaces to Use DHCP 268

DHCP Options 268

Excluded Addresses 269

Lease Time 269

Exam Essentials 269

Describe the Types, Features, and Applications of ACLs 269

Standard 270

Extended 271

Named 271

Numbered 271

Log Option 272

Exam Essentials 272

Configure and Verify ACLs in a Network Environment 272

Named 273

Log Option 274

Exam Essentials 275

Identify the Basic Operation of NAT 276

Purpose 276

Pool 277

Static 277

1 to 1 278

Overloading 278

Source Addressing 278

One Way NAT 279

Exam Essentials 280

Configure and Verify NAT for Given Network Requirements 280

Static NAT Configuration 280

Dynamic NAT Configuration 281

PAT (Overloading) Configuration 282

Simple Verification of NAT 282

Exam Essentials 283

Configure and Verify NTP as a Client 285

Exam Essentials 286

Recognize High Availability (FHRP) 287

VRRP 289

HSRP 289

GLBP 293

Exam Essentials 296

Configure and Verify Syslog 296

Utilize Syslog Output 298

Exam Essentials 301

Describe SNMP v2 & v3 301

Exam Essentials 303

Review Questions 304

Chapter 6 Network Device Security 307

Configure and Verify Network Device Security Features 309

Device Password Security 309

Enable Secret vs. Enable Password 309

Transport 311

Disable Telnet 311

SSH 311

VTYs 313

Physical Security 314

Service Password 314

Describe External Authentication Methods 315

Exam Essentials 316

Configure and Verify Switch Port Security Features 316

Sticky MAC 318

MAC Address Limitation 318

Static/Dynamic 319

Violation Modes 319

Protect Restrict 320

Shutdown Unused Ports 320

Err Disable Recovery 320

Assign Unused Ports to an Unused VLAN 321

Setting Native VLAN to Other than VLAN 1 321

Exam Essentials 321

Configure and Verify ACLs to Filter Network Traffic 322

Exam Essentials 335

Configure and Verify ACLs to Limit Telnet and SSH Access to the Router 335

Exam Essentials 336

Review Questions 337

Chapter 7 Troubleshooting 341

Identify and Correct Common Network Problems 344

Exam Essentials 355

Utilize Netflow Data 355

Exam Essentials 357

Troubleshoot and Correct Common Problems Associated with IP Addressing and Host Configurations 358

Exam Essentials 361

Troubleshoot and Resolve VLAN Problems 362

Identify That VLANs Are Configured 362

Port Membership Correct 363

IP Address Configured 364

Exam Essentials 364

Troubleshoot and Resolve Trunking Problems on Cisco Switches 365

Correct Trunk States 365

Correct Encapsulation Configured 366

Correct VLANs Allowed 367

Exam Essentials 367

Troubleshoot and Resolve Spanning Tree Operation Issues 368

Root Switch 368

Priority 369

Mode Is Correct 370

Port States 370

Exam Essentials 370

Troubleshoot and Resolve Routing Issues 371

Routing Is Enabled 371

Routing Table Is Correct 372

Correct Path Selection 372

Exam Essentials 374

Troubleshoot and Resolve OSPF Problems 374

Neighbor Adjacencies 378

Hello and Dead Timers 378

OSPF Area 378

Interface MTU 380

Network Types 380

Exam Essentials 381

Troubleshoot and Resolve EIGRP Problems 381

Neighbor Adjacencies 386

AS Number 388

Load Balancing 389

Split Horizon 391

Exam Essentials 393

Troubleshoot and Resolve InterVLAN Routing Problems 393

Connectivity 393

Encapsulation 398

Subnet 399

Native VLAN 400

Port Mode Trunk Status 400

Exam Essentials 402

Troubleshoot and Resolve ACL Issues 402

Statistics 404

Permitted Networks 404

Direction 405

Exam Essentials 405

Troubleshoot and Resolve WAN Implementation Issues 405

Serial Interfaces 407

PPP 407

Frame Relay 411

Exam Essentials 418

Troubleshoot and Resolve Layer 1 Problems 418

Verifying Your Network 418

Verifying Your Interfaces 420

Framing 425

CRC 425

Runts 425

Giants 425

Dropped Packets 425

Late Collision 425

Input / Output Errors 426

Verifying Interface Configuration 426

Exam Essentials 429

Monitor NetFlow Statistics 429

Exam Essentials 431

Troubleshoot EtherChannel Problems 431

Exam Essentials 434

Review Questions 435

Chapter 8 WAN Technologies 439

Identify Different WAN Technologies 440

Common WAN Protocols 441

VPN 443

Exam Essentials 444

Configure and Verify a Basic WAN Serial Connection 444

Exam Essentials 446

Configure and Verify a PPP Connection between Cisco Routers 446

Configuring PPP on Cisco Routers 446

Configuring PPP Authentication 446

Verifying and Troubleshooting Serial Links 447

Exam Essentials 452

Configure and Verify Frame Relay on Cisco Routers 452

Frame Relay Bandwidth 453

Frame Relay Implementation and Monitoring 456

Troubleshooting Frame Relay Networks 463

Exam Essentials 467

Implement and Troubleshoot PPPoE 467

Exam Essentials 468

Review Questions 469

Appendix A Answers to Review Questions 473

Chapter 1: Operation of IP Data Networks 474

Chapter 2: LAN Switching Technologies 475

Chapter 3: IP Addressing (IPv4 / IPv6) 475

Chapter 4: IP Routing Technologies 476

Chapter 5: IP Services 477

Chapter 6: Network Device Security 478

Chapter 7: Troubleshooting 479

Chapter 8: WAN Technologies 480

Appendix B About the Additional Study Tools 483

Additional Study Tools 484

Test Engine 484

Electronic Flashcards 484

PDF of Glossary of Terms 484

Adobe Reader 484

System Requirements 485

Using the Study Tools 485

Troubleshooting 485

Customer Care 486

Index 487

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