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CCNA ICND2 640-816 Official Cert Guide - Wendell Odom

CCNA ICND2 640-816 Official Cert Guide

Wendell Odom (Autor)

Media-Kombination
800 Seiten
2011 | 3rd edition
Cisco Press
978-1-58720-435-7 (ISBN)
CHF 44,65 inkl. MwSt
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New Edition of Best Selling Official Cert Guide: Updated Content, New Exercises, and Expanded Coverage -- PLUS includes CCNA Network Simulator Lite

 

The new edition of bestselling CCNA ICND2 640-816 Official Cert Guide by Wendell Odom has been updated to refresh the content, add new exercises, and enhance certain topics that are key to understanding for success on the CCNA exams. Chapters on VLSM, route summarization, and IP access control lists have been completely revised. In addition the book contains new practice exercises for all three of these topics to help reinforce the concepts and increase computation speed for exam preparation.

 

Learn, prepare, and practice for exam success



Master CCNA ICND2 exam topics
Assess your knowledge with chapter-opening quizzes
Review key concepts with exam preparation tasks
Practice with realistic exam questions on the DVD
Learn from 60 minutes of Video mentoring
Apply concepts within Network Simulator lab exercises

CCNA ICND2 640-816 Official Cert Guide, Third Edition is a best of breed Cisco exam study guide. Best-selling author and expert instructor Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. The book presents you with an organized test preparation  routine through the use of proven series elements and techniques. The master table of exam topics makes referencing easy. “Do I Know This Already?” quizzes open each chapter and enable you to decide how much time you need to spend on each section. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly. A final preparation chapter guides you through tools and resources to help you craft your final study plan. Special troubleshooting sections help you master the complex scenarios you will face on the exam.

 

The companion DVD contains the powerful Pearson IT Certification Practice Test engine, complete with hundreds of well-reviewed, exam-realistic questions. The assessment engine offers you a wealth of customization options and reporting features, laying out a complete assessment of your knowledge to help you focus your study where it is needed most. This new edition also includes a free copy of the CCNA ICND2 640-816 Network Simulator, Lite Edition, complete with meaningful lab exercises, which help you hone your hands-on skills with the Cisco user interface for routers and switches. The DVD also contains more than 60 minutes of personal video mentoring from the author focused on subnetting.

 

Well-regarded for its level of detail, assessment features, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time.

 

CCNA ICND2 640-816 Official Cert Guide, Third Edition is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining.

 

Wendell Odom, CCIE No. 1624, is the most respected author of Cisco networking books in the world. His past titles include books on the entry-level Cisco certifications (CCENT and CCNA), the more advanced CCNP, and the industry-renowned CCIE. His books are known for their technical depth and accuracy. Wendell has worked as a network engineer, consultant, instructor, course developer, and book author, and he has produced videos, software, and blogs related to Cisco certifications. His website with links to various study tools and resources is at www.certskills.com.

 

The official study guide helps you master all the topics on the CCNA ICND2 exam, including



VLANs and Spanning Tree Protocol
Static and connected routes
VLSM and route summarization
IP Access Control Lists (ACLs)
Routing protocol theory
OSPF and EIGRP
Troubleshooting
Point-to-point WANS and Frame Relay
Frame Relay
Virtual Private Networks (VPNs)
Network Address Translation (NAT)
IPv6

Companion DVD

The DVD contains two free, complete ICND2 practice exams and two free, full CCNA practice exams, CCNA ICND2 Network Simulator, Lite Edition, and 60 minutes of video training.

 

Includes Exclusive Offer for 70% Off Premium Edition eBook and Practice Test.

 

Pearson IT Certification Practice Test minimum system requirements:

Windows XP (SP3), Windows Vista (SP2), or Windows 7; Microsoft .NET Framework 4.0 Client; Microsoft SQL Server Compact 4.0; Pentium class 1GHz processor (or equivalent); 512 MB RAM; 650 MB disc space plus 50 MB for each downloaded practice exam

 

This volume is part of the Official Cert Guide Series from Cisco Press. Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day nears.



 

Wendell Odom, CCIE No. 1624, has been in the networking industry since 1981. He has worked as a network engineer, consultant, systems engineer, instructor, and course developer; he currently works writing and creating certification tools. He is author of all the previous editions of the Cisco Press CCNA Official Certification Guide series, as well as the CCNP ROUTE 642-902 Official Certification Guide, the CCIE Routing and Switching Official Certification Guide, Computer Networking First Step, the CCNA Video Mentor, IP Networking (a college textbook), and he is the primary networking consultant for the CCNA 640-802 Network Simulator from Pearson. He maintains study tools, links to his blogs, and other resources at www.certskills.com.  

    Introduction xxv

Part I: LAN Switching 3

Chapter 1 Virtual LANs 5

    “Do I Know This Already?” Quiz 5

    Foundation Topics 9

    Virtual LAN Concepts 10

        Trunking with ISL and 802.1Q 11

        IP Subnets and VLANs 15

        VLAN Trunking Protocol (VTP) 16

    VLAN and VLAN Trunking Configuration and Verification 23

        Creating VLANs and Assigning Access VLANs to an Interface 24

        VLAN Trunking Configuration 29

        Securing VLANs and Trunking 37

    VTP Configuration and Verification 38

        Using VTP: Configuring Servers and Clients 38

        Caveats When Moving Away from Default VTP Configuration 42

        Avoiding VTP: Configuring Transparent Mode 43

        Troubleshooting VTP 44

    Exam Preparation Tasks 53

    Review All the Key Topics 53

    Complete the Tables and Lists from Memory 54

    Definitions of Key Terms 54

    Command Reference to Check Your Memory 54

Chapter 2 Spanning Tree Protocol 57

    “Do I Know This Already?” Quiz 57

    Foundation Topics 61

    Spanning Tree Protocol (IEEE 802.1d) 61

        The Need for Spanning Tree 61

        What IEEE 802.1d Spanning Tree Does 63

        How Spanning Tree Works 65

        Optional STP Features 75

Rapid STP (IEEE 802.1w) 78

    RSTP Link and Edge Types 79

        RSTP Port States 80

        RSTP Port Roles 81

        RSTP Convergence 82

        Edge-Type Behavior and PortFast 83

    STP Configuration and Verification 86

        Multiple Instances of STP 87

        Configuration Options That Influence the Spanning Tree Topology 88

        Verifying Default STP Operation 90

        Configuring STP Port Costs and Switch Priority 92

        Configuring PortFast and BPDU Guard 95

        Configuring EtherChannel 95

        Configuring RSTP 97

    STP Troubleshooting 98

        Determining the Root Switch 99

        Determining the Root Port on Nonroot Switches 100

        Determining the Designated Port on Each LAN Segment 102

        STP Convergence 104

    Exam Preparation Tasks 105

    Review All the Key Topics 105

    Complete the Tables and Lists from Memory 106

    Definitions of Key Terms 106

    Command Reference to Check Your Memory 106

Chapter 3 Troubleshooting LAN Switching 109

    “Do I Know This Already?” Quiz 109

    Foundation Topics 110

    Generalized Troubleshooting Methodologies 110

        Analyzing and Predicting Normal Network Operation 111

        Problem Isolation 114

        Root Cause Analysis 115

        Real World Versus the Exams 116

    Troubleshooting the LAN Switching Data Plane 117

        An Overview of the Normal LAN Switch Forwarding Process 117

        Step 1: Confirm the Network Diagrams Using CDP 119

        Step 2: Isolate Interface Problems 121

        Step 3: Isolate Filtering and Port Security Problems 127

        Step 4: Isolate VLAN and Trunking Problems 132

        Example: Troubleshooting the Data Plane 136

    Predicting Normal Operation of the LAN Switching Data Plane 147

        PC1 Broadcast in VLAN 1 147

        Forwarding Path: Unicast from R1 to PC1 151

    Exam Preparation Tasks 155

    Review All the Key Topics 155

    Complete the Tables and Lists from Memory 155

Part II: IP Routing 157

Chapter 4 IP Routing: Static and Connected Routes 159

    “Do I Know This Already?” Quiz 159

    Foundation Topics 162

    IP Routing and Addressing 162

        IP Routing 162

        IP Addressing and Subnetting 166

        DNS, DHCP, ARP, and ICMP 171

        Fragmentation and MTU 173

    Routes to Directly Connected Subnets 175

        Secondary IP Addressing 175

        Supporting Connected Routes to Subnet Zero 177

        ISL and 802.1Q Configuration on Routers 178

    Static Routes 180

        Configuring Static Routes 182

        The Extended ping Command 183

        Static Default Routes 186

        Default Route Summary 190

        Classful and Classless Routing 190

    Exam Preparation Tasks 194

    Review All the Key Topics 194

    Complete the Tables and Lists from Memory 194

    Definitions of Key Terms 195

    Command Reference to Check Your Memory 195

Chapter 5 Variable Length Subnet Masks 199

    “Do I Know This Already?” Quiz 199

    Foundation Topics 202

    VLSM Concepts and Configuration 202

        Classless and Classful Routing Protocols 203

        VLSM Configuration and Verification 204

    Finding VLSM Overlaps 205

        An Example of Finding a VLSM Overlap 206

        Practice Finding VLSM Overlaps 208

    Adding a New Subnet to an Existing VLSM Design 208

        An Example of Adding a New VLSM Subnet 209

        Practice Adding New VLSM Subnets 211

    Designing a Subnetting Plan Using VLSM 211

        Choosing VLSM Masks 212

        Assigning the Largest Subnet IDs First 213

        An Example of VLSM Subnet Design 215

        Summary of the Formal VLSM Subnet Design Process 217

        Practice Designing VLSM Subnets 218

    Exam Preparation Tasks 219

    Review All the Key Topics 219

    Complete the Tables and Lists from Memory 219

    Definitions of Key Terms 219

    Read Appendix G Scenarios 220

    Appendix D Practice Problems 220

    Answers to Earlier Practice Problems 220

        Answers to Practice Finding VLSM Overlaps 220

        Answers to Practice Adding VLSM Subnets 221

        Answers to Practice Designing VLSM Subnets 224

Chapter 6 Route Summarization 227

    “Do I Know This Already?” Quiz 228

    Foundation Topics 230

    Manual Route Summarization 230

        Understanding Route Summarization Concepts 230

        Verifying Manually Summarized Routes 232

        Configuring Manually Summarized Routes 233

        Choosing the Best Summary Routes 235

        Practice Choosing the Best Summary Routes 238

    Autosummarization and Discontiguous Classful Networks 239

        An Example of Autosummarization 240

        Discontiguous Classful Networks 241

        Autosummarization Support and Configuration 243

    Review All the Key Topics 245

    Complete the Tables and Lists from Memory 245

    Definitions of Key Terms 245

    Read Appendix G Scenarios 245

    Command Reference to Check Your Memory 246

    Answers to Practice Problems 246

        Problem 1 246

        Problem 2 247

        Problem 3 247

        Problem 4 248

Chapter 7 Basic IP Access Control Lists 251

    “Do I Know This Already?” Quiz 251

    Foundation Topics 254

    IP Access Control List Basics 254

        ACL Locations 254

        Matching Packets 255

        Taking Action When a Match Occurs 256

        Types of IP ACLs 256

    Standard Numbered IPv4 ACLs 257

        List Logic with IP ACLs 258

        Matching Logic and Command Syntax 260

        Implementing Standard IP ACLs 264

    Practice Applying Standard IP ACLs 268

        Practice Building access-list Commands 268

        Reverse Engineering from ACL to Address Range 269

    Exam Preparation Tasks 271

    Review All the Key Topics 271

    Read the Appendix G Scenarios 271

    Definitions of Key Terms 271

    Appendix F Practice Problems 272

    Command Reference to Check Your Memory 272

        Answers to Earlier Practice Problems 273

Chapter 8 Advanced IP Access Control Lists 275

    “Do I Know This Already?” Quiz 276

    Foundation Topics 278

    Extended Numbered IP Access Control Lists 278

        Matching the Protocol, Source IP, and Destination IP 278

        Matching TCP and UDP Port Numbers 280

        Extended IP ACL Configuration 283

        Practice Building access-list Commands 288

    Named ACLs and ACL Editing 288

        Named IP Access Lists 288

        Editing ACLs Using Sequence Numbers 291

    Miscellaneous ACL Topics 294

        Controlling Telnet and SSH Access with ACLs 295

        ACL Implementation Considerations 295

        Reflexive Access Lists 297

        Dynamic ACLs 299

        Time-Based ACLs 300

    Exam Preparation Tasks 301

    Review All the Key Topics 301

    Read the Appendix G Scenarios 301

    Definitions of Key Terms 302

    Command Reference to Check Your Memory 302

    Answers to Earlier Practice Problems 303

Chapter 9 Troubleshooting IP Routing 305

    “Do I Know This Already?” Quiz 305

    Foundation Topics 306

    The ping and traceroute Commands 306

        Internet Control Message Protocol (ICMP) 306

        The traceroute Command 312

    Troubleshooting the Packet Forwarding Process 314

        Isolating IP Routing Problems Related to Hosts 314

        Isolating IP Routing Problems Related to Routers 316

    Troubleshooting Tools and Tips 324

        Host Routing Tools and Perspectives 324

        show ip route Reference 326

        Interface Status 328

        VLSM Issues 328

        Discontiguous Networks and Autosummary 333

        Access List Troubleshooting Tips 334

    Exam Preparation Tasks 337

    Review All the Key Topics 337

    Complete the Tables and Lists from Memory 337

    Definitions of Key Terms 337

Part III: Routing Protocols 339

Chapter 10 Routing Protocol Theory 341

    “Do I Know This Already?” Quiz 341

    Foundation Topics 345

    Dynamic Routing Protocol Overview 345

        Routing Protocol Functions 346

        Interior and Exterior Routing Protocols 347

        Comparing IGPs 349

        Administrative Distance 352

    Distance Vector Routing Protocol Features 354

        The Concept of a Distance and a Vector 354

        Distance Vector Operation in a Stable Network 355

        Distance Vector Loop Prevention 356

        Distance Vector Summary 368

    Link-State Routing Protocol Features 369

        Building the Same LSDB on Every Router 369

        Applying Dijkstra SPF Math to Find the Best Routes 371

        Convergence with Link-State Protocols 373

        Summary and Comparisons to Distance Vector Protocols 373

    Exam Preparation Tasks 375

    Review All the Key Topics 375

    Complete the Tables and Lists from Memory 376

    Definitions of Key Terms 376

    Command Reference to Check Your Memory 376

Chapter 11 OSPF 379

    “Do I Know This Already?” Quiz 379

    Foundation Topics 383

    OSPF Protocols and Operation 383

        OSPF Neighbors 383

        OSPF Topology Database Exchange 388

        Building the IP Routing Table 392

        Scaling OSPF Through Hierarchical Design 393

    OSPF Configuration 397

        OSPF Single-Area Configuration 398

        OSPF Configuration with Multiple Areas 400

        Configuring the OSPF Router ID 402

        OSPF Hello and Dead Timers 403

        OSPF Metrics (Cost) 405

        OSPF Authentication 406

        OSPF Load Balancing 408

    Exam Preparation Tasks 409

    Review All the Key Topics 409

    Definitions of Key Terms 410

    Command Reference to Check Your Memory 410

Chapter 12 EIGRP 413

    “Do I Know This Already?” Quiz 413

    Foundation Topics 416

    EIGRP Concepts and Operation 416

        EIGRP Neighbors 416

        Exchanging EIGRP Topology Information 417

        Calculating the Best Routes for the Routing Table 418

        EIGRP Convergence 421

        EIGRP Summary and Comparisons with OSPF 424

    EIGRP Configuration and Verification 425

        Basic EIGRP Configuration 426

        EIGRP Metrics, Successors, and Feasible Successors 428

        EIGRP Authentication 433

        EIGRP Maximum Paths and Variance 435

        Tuning the EIGRP Metric Calculation 437

    Exam Preparation Tasks 439

    Review All the Key Topics 439

    Complete the Tables and Lists from Memory 439

    Definitions of Key Terms 440

    Command Reference to Check Your Memory 440

Chapter 13 Troubleshooting Routing Protocols 443

    “Do I Know This Already?” Quiz 443

    Foundation Topics 444

        Perspectives on Troubleshooting Routing Protocol Problems 444

        Interfaces Enabled with a Routing Protocol 446

    Neighbor Relationships 454

        EIGRP Neighbor Requirements 455

        OSPF Neighbor Requirements 457

    Exam Preparation Tasks 464

    Review All the Key Topics 464

    Complete the Tables and Lists from Memory 464

    Command Reference to Check Your Memory 464

Part IV: Wide-Area Networks 467

Chapter 14 Point-to-Point WANs 469

    “Do I Know This Already?” Quiz 469

    Foundation Topics 472

    PPP Concepts 472

        The PPP Protocol Field 472

        PPP Link Control Protocol (LCP) 473

    PPP Configuration 478

        Basic PPP Configuration 478

        CHAP Configuration and Verification 479

        PAP Configuration 480

    Troubleshooting Serial Links 480

        Troubleshooting Layer 1 Problems 482

        Troubleshooting Layer 2 Problems 483

        Troubleshooting Layer 3 Problems 486

    Exam Preparation Tasks 489

    Review All the Key Topics 489

    Complete the Tables and Lists from Memory 489

    Definitions of Key Terms 489

    Command Reference to Check Your Memory 490

Chapter 15 Frame Relay Concepts 493

    “Do I Know This Already?” Quiz 493

    Foundation Topics 497

    Frame Relay Overview 497

        Frame Relay Standards 500

        Virtual Circuits 500

        LMI and Encapsulation Types 503

    Frame Relay Addressing 505

        Frame Relay Local Addressing 506

        Frame Forwarding with One DLCI Field 507

        Frame Relay Global Addressing (DLCIs) 509

    Network Layer Concerns with Frame Relay 511

        Frame Relay Layer 3 Addressing: One Subnet Containing All Frame Relay DTEs 511

        Frame Relay Layer 3 Addressing: One Subnet Per VC 512

        Frame Relay Layer 3 Addressing: Hybrid Approach 514

        Layer 3 Broadcast Handling 515

    Controlling Speed and Discards in the Frame Relay Cloud 516

        FECN and BECN 517

        The Discard Eligibility (DE) Bit 518

    Exam Preparation Tasks 519

    Review All the Key Topics 519

    Complete the Tables and Lists from Memory 519

    Definitions of Key Terms 520

Chapter 16 Frame Relay Configuration 523

    “Do I Know This Already?” Quiz 523

    Foundation Topics 527

    Frame Relay Configuration and Verification 527

        Planning a Frame Relay Configuration 527

        A Fully Meshed Network with One IP Subnet 529

        Configuring the Encapsulation and LMI 531

        Frame Relay Address Mapping 532

        A Partially Meshed Network with One IP Subnet Per VC 537

        A Partially Meshed Network with Some Fully Meshed Parts 543

    Frame Relay Troubleshooting 547

        A Suggested Frame Relay Troubleshooting Process 547

        Layer 1 Issues on the Access Link (Step 1) 549

        Layer 2 Issues on the Access Link (Step 2) 549

        PVC Problems and Status (Step 3) 551

        Frame Relay Mapping Issues (Step 4) 558

        End-to-End Encapsulation (Step 5) 559

        Mismatched Subnet Numbers (Step 6) 559

    Exam Preparation Tasks 560

    Review All the Key Topics 560

    Complete the Tables and Lists from Memory 560

    Read the Appendix G Scenarios 560

    Command Reference to Check Your Memory 561

Chapter 17 Virtual Private Networks 565

    “Do I Know This Already?” Quiz 565

    Foundation Topics 568

    VPN Fundamentals 568

    IPsec VPNs 571

        IPsec Encryption 572

        IPsec Key Exchange 573

        IPsec Authentication and Message Integrity 574

        The ESP and AH Security Protocols 576

        IPsec Implementation Considerations 577

    SSL VPNs 578

    Exam Preparation Tasks 580

    Review All the Key Topics 580

    Complete the Tables and Lists from Memory 580

    Definitions of Key Terms 580

Part V: Scaling the IP Address Space 583

Chapter 18 Network Address Translation 585

    “Do I Know This Already?” Quiz 585

    Foundation Topics 589

    Perspectives on IPv4 Address Scalability 589

        CIDR 590

        Private Addressing 592

    Network Address Translation Concepts 593

        Static NAT 593

        Dynamic NAT 596

    NAT Configuration and Troubleshooting 602

        Static NAT Configuration 602

        Dynamic NAT Configuration 604

        NAT Overload (PAT) Configuration 608

        NAT Troubleshooting 611

    Exam Preparation Tasks 613

    Review All the Key Topics 613

    Complete the Tables and Lists from Memory 613

    Definitions of Key Terms 614

    Command Reference to Check Your Memory 614

Chapter 19 IP Version 6 617

    “Do I Know This Already?” Quiz 617

    Foundation Topics 620

    Global Unicast Addressing, Routing, and Subnetting 621

        Global Route Aggregation for Efficient Routing 622

        Conventions for Representing IPv6 Addresses 624

        Conventions for Writing IPv6 Prefixes 625

        Global Unicast Prefix Assignment Example 628

        Subnetting Global Unicast IPv6 Addresses Inside an Enterprise 630

        Prefix Terminology 632

    IPv6 Protocols and Addressing 633

        DHCP for IPv6 633

        IPv6 Host Address Assignment 634

        Discovering the Default Router with NDP 639

        Learning the IP Address(es) of DNS Servers 639

        IPv6 Addresses 640

        Summary of IP Protocols and Addressing 643

    Configuring IPv6 Routing and Routing Protocols 644

        IPv6 Routing Protocols 644

        IPv6 Configuration 645

    IPv6 Transition Options 649

        IPv4/IPv6 Dual Stacks 649

        Tunneling 649

        Translating Between IPv4 and IPv6 with NAT-PT 651

        Transition Summary 652

    Exam Preparation Tasks 653

    Review All the Key Topics 653

    Complete the Tables and Lists from Memory 654

    Definitions of Key Terms 654

    Command Reference to Check Your Memory 654

Part VI: Final Preparation 657

Chapter 20 Final Preparation 659

    Tools for Final Preparation 659

        Pearson Cert Practice Test Engine and Questions on the DVD 659

        The Cisco Learning Network 662

        Subnetting Preparation Tools 662

        Scenarios 663

    Study Plan 663

        Recall the Facts 664

        Practice Subnetting 664

        Build Troubleshooting Skills Using Scenarios 665

        Studying for ICND2 640-816 or CCNA 640-802 666

    Summary 667

Part VII: Part VII: Appendices 669

Appendix A Answers to the “Do I Know This Already?” Quizzes 671

Appendix B Numeric Reference Tables 684

Appendix C ICND2 Exam Updates: Version 1.0 692

Glossary 696

Part VIII: DVD-Only

Appendix D Practice for Chapter 5: Variable Length Subnet Masks

Appendix E Practice for Chapter 6: Route Summarization

Appendix F Practice for Chapter 7: Basic IP Access Control Lists

Appendix G Additional Scenarios

Appendix H Video Scenario Reference

Appendix I ICND1 Chapter 23: WAN Configuration

Appendix J Memory Tables

Appendix K Memory Tables Answer Key

Appendix L ICND2 Open-Ended Questions

TOC, 9781587204357, 8/26, 2011

 

Erscheint lt. Verlag 19.10.2011
Verlagsort Indianapolis
Sprache englisch
Maße 194 x 238 mm
Gewicht 1514 g
Themenwelt Mathematik / Informatik Informatik Datenbanken
Mathematik / Informatik Informatik Netzwerke
Informatik Weitere Themen Zertifizierung
ISBN-10 1-58720-435-5 / 1587204355
ISBN-13 978-1-58720-435-7 / 9781587204357
Zustand Neuware
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