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CCNA ICND2 Study Guide: Exam 200-105, 3rd Edition



CCNA ICND2 Study Guide: Exam 200-105, 3rd Edition

Todd Lammle

ISBN: 978-1-119-29099-5 September 2016 480 Pages

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IMPORTANT NOTE: Cisco has announced BIG changes to its certification program. As of February 24, 2020, all the current certifications will be retired. Cisco will offer new certifications for you to complete. The good news is if you’re working toward any current CCNA certification, keep going. You have until February 24, 2020 to complete your current CCNA. This means if you already have CCENT / ICND1 certification and would like to earn CCNA, you have until February 23, 2020 to complete your CCNA certification in the current program. Likewise, if you’re thinking of completing the current CCENT / ICND1, ICND2, or CCNA Routing and Switching certification, you can still complete them between now and February 23, 2020. So, buy these Study Guides now before it’s too late!

Real-world expert preparation for the ICND2, with hands-on labs

The CCNA ICND2 Study Guide, 3rd Edition covers 100 percent of all exam 200-105 objectives. Leading networking authority Todd Lammle provides detailed explanations and clear instruction on IP data networks, switching and routing technologies, IPv4 and IPV6 addressing, troubleshooting, security, and more. Dozens of hands-on labs help you gain experience with important tasks, and expert examples and insights drawn from thirty years of networking bring real-world perspective to essential CCNA skills. The Sybex interactive online learning environment provides hundreds of sample questions, a glossary of key terms, and over 100 electronic flashcards to streamline your study time and expand your resources; the pre-assessment test shows you where to focus your efforts, and the practice exam allows you test your level of understanding while there's still time to improve.

The ICND2 is the final exam for the CCNA certification. With 80 percent of the Internet's routers being Cisco technology, this exam is critical for a career in networking. This guide explains everything you need to be confident on exam day.

  • Study 100% of the exam objectives
  • Get essential hands-on experience
  • Access sample questions and flashcards
  • Test your knowledge with a bonus practice exam

Be fully prepared for the CCNA ICND2 with the Sybex advantage.

Related Resources

Introduction xvii

Assessment Test xxxi

Chapter 1 Enhanced Switched Technologies 1

VLAN Review 2

Assigning Switch Ports to VLANs 5

Configuring Trunk Ports 7

VLAN Trunking Protocol (VTP) 11

VTP Modes of Operation 12

VTP Pruning 14

Configuring VTP 15

Troubleshooting VTP 16

Spanning Tree Protocol (STP) 20

Spanning-Tree Terms 21

Spanning-Tree Operations 25

Types of Spanning-tree Protocols 28

Common Spanning Tree 28

Per-VLAN Spanning Tree+ 29

Modifying and Verifying the Bridge ID 36

Spanning-Tree Failure Consequences 41

PortFast and BPDU Guard 43

BPDU Guard 45

EtherChannel 47

Configuring and Verifying Port Channels 48

Summary 52

Exam Essentials 53

Written Lab 1 53

Hands-on Labs 54

Hands-on Lab 1.1: Verifying STP and Finding Your Root Bridge 55

Hands-on Lab 1.2: Configuring and Verifying Your Root Bridge 56

Hands-on Lab 1.3: Configuring PortFast and BPDU Guard 58

Hands-on Lab 1.4: Configuring and Verifying EtherChannel 59

Review Questions 61

Chapter 2 Network Device Management and Security 67

Mitigating Threats at the Access Layer 68

External Authentication Options 71




Management Information Base (MIB) 74

Configuring SNMP 75

Client Redundancy Issues 77

Introducing First Hop Redundancy Protocols (FHRPs) 79

Hot Standby Router Protocol (HSRP) 80

Virtual MAC Address 82

HSRP Timers 83

Group Roles 85

Configuring and Verifying HSRP 87

Summary 93

Exam Essentials 93

Written Lab 2 94

Review Questions 95

Chapter 3 Enhanced IGRP 99

EIGRP Features and Operations 100

Neighbor Discovery 101

Reliable Transport Protocol (RTP) 106

Diffusing Update Algorithm (DUAL) 107

Route Discovery and Maintenance 107

Configuring EIGRP 108

VLSM Support and Summarization 111

Controlling EIGRP Traffic 114

Split Horizon 125

Verifying and Troubleshooting EIGRP 127

Troubleshooting Example with EIGRP 133

Simple Troubleshooting EIGRP for the CCNA 143

EIGRPv6 145

Summary 150

Exam Essentials 151

Written Lab 3 151

Hands-on Labs 152

Hands-on Lab 3.1: Configuring and Verifying EIGRP 152

Hands-on Lab 3.2: Configuring and Verifying EIGRPv6 153

Review Questions 155

Chapter 4 Open Shortest Path First (OSPF) 163

Open Shortest Path First (OSPF) Basics 164

OSPF Terminology 167

OSPF Operation 169

Configuring OSPF 171

Enabling OSPF 171

Configuring OSPF Areas 172

Configuring Our Network with OSPF 175

OSPF and Loopback Interfaces 180

Configuring Loopback Interfaces 181

Verifying OSPF Configuration 183

The show ip ospf Command 184

The show ip ospf database Command 185

The show ip ospf interface Command 186

The show ip ospf neighbor Command 187

The show ip protocols Command 188

Summary 189

Exam Essentials 189

Written Lab 4 190

Hands-on Labs 190

Hands-on Lab 4.1: Enabling the OSPF Process 191

Hands-on Lab 4.2: Configuring OSPF Interfaces 192

Hands-on Lab 4.3: Verifying OSPF Operation 193

Review Questions 194

Chapter 5 Multi-Area OSPF 201

OSPF Scalability 202

Categories of Multi-area Components 204

Adjacency Requirements 204

OSPF Router Roles 205

Link-State Advertisements 206

OSPF Hello Protocol 208

Neighbor States 209

Basic Multi-area Configuration 211

Verifying and Troubleshooting Multi-area OSPF Networks 214

The show ip ospf Command 215

The show ip ospf interface Command 216

The show ip protocols Command 219

The show ip route Command 219

The show ip ospf database Command 220

Troubleshooting OSPF Scenario 222

Simple Troubleshooting OSPF for the CCNA 230

OSPFv3 232

Verifying OSPFv3 234

Summary 237

Exam Essentials 237

Written Lab 5 238

Hands-on Labs 238

Hands-on Lab 5.1: Configuring and Verifying OSPF Multi-Area 239

Hands-on Lab 5.2: Configuring and Verifying OSPFv3 242

Review Questions 244

Chapter 6 Troubleshooting IP, IPv6, and VLANs 249

Troubleshooting IP Network Connectivity 250

Using IP SLA for Troubleshooting 261

Using SPAN for Troubleshooting 263

Configuring and Verifying Extended Access Lists 265

Troubleshooting IPv6 Network Connectivity 268

ICMPv6 268

Troubleshooting IPv6 Extended Access Lists 276

Troubleshooting VLAN Connectivity 280

VLAN Troubleshooting 280

Trunk Troubleshooting 285

Summary 292

Exam Essentials 293

Written Lab 6 293

Review Questions 295

Chapter 7 Wide Area Networks 299

Introduction to Wide Area Networks 300

WAN Topology Options 301

Defining WAN Terms 303

WAN Connection Bandwidth 304

WAN Connection Types 305

WAN Support 306

Cisco Intelligent WAN (IWAN) 309

Cabling the Serial Wide Area Network 312

Serial Transmission 312

Data Terminal Equipment and Data Communication Equipment 313

High-Level Data-Link Control (HDLC) Protocol 314

Point-to-Point Protocol (PPP) 316

Link Control Protocol (LCP) Configuration Options 317

PPP Session Establishment 318

PPP Authentication Methods 319

Configuring PPP on Cisco Routers 319

Configuring PPP Authentication 319

Verifying and Troubleshooting Serial Links 320

Multilink PPP (MLP) 325

PPP Client (PPPoE) 329

Configuring a PPPoE Client 330

Virtual Private Networks 331

Benefits of VPNs 332

Enterprise- and Provider-Managed VPNs 333

Introduction to Cisco IOS IPsec 335

IPsec Transforms 336

GRE Tunnels 337

GRE over IPsec 338

Configuring GRE Tunnels 339

Verifying GRP Tunnels 341

Single-Homed EBGP 343

Protocol Comparison and Overview 344

Configuring and Verifying EBGP 347

Verifying EBGP 349

Summary 352

Exam Essentials 352

Written Lab 7 353

Hands-on Labs 353

Hands-on Lab 7.1: Configuring PPP Encapsulation and Authentication 354

Hands-on Lab 7.2: Configuring and Monitoring HDLC 355

Hands-on Lab 7.3: Configuring a GRE Tunnel 356

Review Questions 359

Chapter 8 Evolution of Intelligent Networks 365

Switch Stacking 366

Cloud Computing and Its Effect on the Enterprise Network 368

Service Models 370

Overview of Network Programmability in Enterprise Network 371

Application Programming Interfaces (APIs) 372

Southbound APIs 373

Northbound APIs 374

Cisco APIC-EM 375

Using APIC-EM for Path Tracing 377

Cisco Intelligent WAN 378

Quality of Service 380

Traffic Characteristics 380

Trust Boundary 382

QoS Mechanisms 383

Classification and Marking 383

Policing, Shaping, and Re-Marking 384

Tools for Managing Congestion 385

Tools for Congestion Avoidance 388

Summary 389

Exam Essentials 389

Written Lab 8 389

Review Questions 391

Appendix A Answers to Written Labs 395

Chapter 1: Enhanced Switched Technologies 396

Written Lab 1 396

Chapter 2: Network Device Management and Security 396

Written Lab 2 396

Chapter 3: Enhanced IGRP 397

Written Lab 3 397

Chapter 4: Open Shortest Path First (OSPF) 397

Written Lab 4 397

Chapter 5: Multi-Area OSPF 398

Written Lab 5 398

Chapter 6: Troubleshooting IP, IPv6, and VLANs 398

Written Lab 6 398

Chapter 7: Wide Area Networks 399

Written Lab 7 399

Chapter 8: Evolution of Intelligent Networks 399

Written Lab 8 399

Appendix B Answers to Review Questions 401

Chapter 1: Enhanced Switched Technologies 402

Chapter 2: Network Device Management and Security 404

Chapter 3: Enhanced IGRP 405

Chapter 4: Open Shortest Path First (OSPF) 407

Chapter 5: Multi-Area OSPF 409

Chapter 6: Troubleshooting IP, IPv6, and VLANs 410

Chapter 7: Wide Area Networks 411

Chapter 8: Evolution of Intelligent Networks 413

Index 415

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