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CCNA Data Center DCICN 640-911 Official Cert Guide By Wendell Odom

CCNA Data Center DCICN 640-911 Official Cert Guide

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CCNA Data Center DCICN 640-911 Official Cert Guide Summary

CCNA Data Center DCICN 640-911 Official Cert Guide by Wendell Odom

Trust the best-selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for exam success. This series is built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam.

CCNA Data Center DCICN 640-911 Official Cert Guide from Cisco Press enables you to succeed on the exam the first time and is the only self-study resource approved by Cisco. Expert instructors and engineers Wendell Odom and Chad Hintz share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.

This complete, official study package includes
--A test-preparation routine proven to help you pass the exam
--"Do I Know This Already?" quizzes, which enable you to decide how much time you need to spend on each section
--Chapter-ending and part-ending exercises, which help you drill on key concepts you must know thoroughly
--The powerful Pearson IT Certification Practice Test software, complete with hundreds of well-reviewed, exam-realistic questions, customization options, and detailed performance reports
--A final preparation chapter that guides you through tools and resources to help you craft your review and test-taking strategies
--A Nexus lab guide appendix, with advice for building hands-on Nexus labs
--Study plan suggestions and templates to help you organize and optimize your study time

Well regarded for its level of detail, study plans, assessment features, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that ensure your exam success.

The official study guide helps you master topics on the CCNA Data Center DCICN 640-911 exam, including
--Networking fundamentals
--Installing, operating, and configuring Nexus switches
--VLANs and trunking concepts and configuration
--Spanning Tree Protocol (STP) concepts and configuration
--IP addressing and subnetting
--IPv6 fundamentals
--Cisco Nexus IPv4 routing configuration and routing protocol implementation
--IPv4 access control lists (ACL) on Nexus switches

CCNA Data Center DCICN 640-911 Official Cert Guide 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

The print edition of the CCNA Data Center DCICN 640-911 Official Cert Guide contains more than 200 practice exam questions.

Also available from Cisco Press is the CCNA Data Center DCICN 640-911 Official Cert Guide Premium Edition eBook and Practice Test. This digital-only certification preparation product combines an eBook with enhanced Pearson IT Certification Practice Test.

This integrated learning package
--Enables you to focus on individual topic areas or take complete, timed exams
--Includes direct links from each question to detailed tutorials to help you understand the concepts behind the questions
--Provides additional unique sets of exam-realistic practice questions
--Tracks your performance and provides feedback on a module-by-module basis, laying out a complete assessment of your knowledge to help you focus your study where it is needed most

This print book includes a 70% discount offer off the list price of the CCNA Data Center DCICN 640-911 Official Cert Guide Premium Edition eBook and Practice Test to help enhance your exam preparation experience.

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About Wendell Odom

Wendell Odom, CCIE No. 1624, has a long history of writing networking books. He is the author of all the previous books in the Cisco Press CCNA Official Certification Guide series, in addition to earlier editions of CCNP certification guides (ROUTE and QoS) and many earlier editions of the CCIE Routing and Switch Official Certification Guide. He has written textbooks and produced networking videos. He also contributes to the design and to labs with the popular CCNA 200-120 Network Simulator from Pearson. His 30+ year career includes stints at IBM and Cisco and jobs ranging from network engineering, consulting, presale engineering, and teaching. You can find Wendell's books and blogs at, and find him on Twitter (@WendellOdom).

Chad Hintz, CCIE No. 15729, is a technical solutions architect for the Cisco Commercial East Area focusing on designing enterprise solutions for customers around the Cisco data center technologies. He also holds three CCIEs: Routing and Switching, Security, and Storage. He has more than 10 years of experience in the industry and has held certifications from Novell, VMware, and Cisco. His focus is working with enterprise/commercial customers to address their challenges with comprehensive end-to-end data center architectures. Chad has been with Cisco for eight years, and working as a solution architect has provided unique experiences in building these types of solutions. Chad is a regular speaker at Cisco Live and industry conferences on data center technologies. Chad lives near Buffalo, New York, with his wife and two wonderful children and enjoys golfing in his spare time.

Table of Contents

Introduction xxxi

Getting Started 1

Part I: Networking Fundamentals 9

Chapter 1 The TCP/IP and OSI Networking Models 11

"Do I Know This Already?" Quiz 11

Foundation Topics 14

Perspectives on Networking 14

TCP/IP Networking Model 15

History Leading to TCP/IP 16

Overview of the TCP/IP Networking Model 17

TCP/IP Application Layer 19

HTTP Overview 19

HTTP Protocol Mechanisms 20

TCP/IP Transport Layer 21

TCP Error Recovery Basics 21

Same-Layer and Adjacent-Layer Interactions 22

TCP/IP Network Layer 22

Internet Protocol and the Postal Service 23

Internet Protocol Addressing Basics 24

IP Routing Basics 25

TCP/IP Link Layer (Data Link Plus Physical) 26

TCP/IP Model and Terminology 28

Comparing the Original and Modern TCP/IP Models 28

Data Encapsulation Terminology 28

Names of TCP/IP Messages 30

OSI Networking Model 30

Comparing OSI and TCP/IP 30

Describing Protocols by Referencing the OSI Layers 31

OSI Layers and Their Functions 32

OSI Layering Concepts and Benefits 33

OSI Encapsulation Terminology 34

Exam Preparation Tasks 36

Review All the Key Topics 36

Definitions of Key Terms 36

Chapter 2 Fundamentals of Ethernet LANs 39

"Do I Know This Already?" Quiz 39

Foundation Topics 42

An Overview of LANs 42

Typical SOHO LANs 42

Typical Enterprise Campus LANs 43

Typical Data Center Ethernet LAN 44

The Variety of Ethernet Physical Layer Standards 45

Consistent Behavior over All Links Using the Ethernet Data Link Layer 46

Building Physical Ethernet Networks with UTP 47

Transmitting Data Using Twisted Pairs 47

Breaking Down a UTP Ethernet Link 48

UTP Cabling Pinouts for 10BASE-T and 100BASE-T 51

Straight-Through Cable Pinout 51

Crossover Cable Pinout 53

Choosing the Right Cable Pinouts 54

UTP Cabling Pinouts for 1000BASE-T 55

Sending Data in Ethernet Networks 55

Ethernet Data-Link Protocols 55

Ethernet Addressing 56

Identifying Network Layer Protocols with the Ethernet Type Field 58

Error Detection with FCS 59

Sending Ethernet Frames with Switches and Hubs 59

Sending in Modern Ethernet LANs Using Full-Duplex 59

Using Half-Duplex with LAN Hubs 60

Exam Preparation Tasks 63

Review All the Key Topics 63

Complete the Tables and Lists from Memory 63

Definitions of Key Terms 64

Chapter 3 Fundamentals of WANs 67

"Do I Know This Already?" Quiz 67

Foundation Topics 70

Leased Line WANs 70

Positioning Leased Lines with LANs and Routers 70

Physical Details of Leased Lines 71

Leased Line Cabling 72

Building a WAN Link in a Lab 73

Data Link Details of Leased Lines 74

HDLC Basics 74

How Routers Use a WAN Data Link 75

Ethernet as a WAN Technology 77

Ethernet WANs that Create a Layer 2 Service 78

How Routers Route IP Packets Using Ethernet Emulation 79

Accessing the Internet 80

The Internet as a Large WAN 80

Internet Access (WAN) Links 81

Digital Subscriber Line 82

Cable Internet 84

Exam Preparation Tasks 86

Review All the Key Topics 86

Complete the Tables and Lists from Memory 86

Definitions of Key Terms 86

Chapter 4 Fundamentals of IPv4 Addressing and Routing 89

"Do I Know This Already?" Quiz 89

Foundation Topics 92

Overview of Network Layer Functions 92

Network Layer Routing (Forwarding) Logic 92

Host Forwarding Logic: Send the Packet to the Default Router 93

R1 and R2's Logic: Routing Data Across the Network 94

R3's Logic: Delivering Data to the End Destination 94

How Network Layer Routing Uses LANs and WANs 94

IP Addressing and How Addressing Helps IP Routing 95

Routing Protocols 97

IPv4 Addressing 97

Rules for IP Addresses 98

Rules for Grouping IP Addresses 98

Class A, B, and C IP Networks 99

The Actual Class A, B, and C IP Networks 101

IP Subnetting 103

IPv4 Routing 105

IPv4 Host Routing 105

Router Forwarding Decisions and the IP Routing Table 106

A Summary of Router Forwarding Logic 106

A Detailed Routing Example 107

IPv4 Routing Protocols 109

Other Network Layer Features 111

Using Names and the Domain Name System 111

The Address Resolution Protocol 112

ICMP Echo and the ping Command 113

Exam Preparation Tasks 115

Review All the Key Topics 115

Complete the Tables and Lists from Memory 115

Definitions of Key Terms 115

Chapter 5 Fundamentals of TCP/IP Transport and Applications 117

"Do I Know This Already?" Quiz 117

Foundation Topics 120

TCP/IP Layer 4 Protocols: TCP and UDP 120

Transmission Control Protocol 121

Multiplexing Using TCP Port Numbers 122

Popular TCP/IP Applications 125

Connection Establishment and Termination 126

Error Recovery and Reliability 127

Flow Control Using Windowing 130

User Datagram Protocol 131

TCP/IP Applications 132

QoS Needs and the Impact of TCP/IP Applications 132

Defining Interactive and Batch Applications 132

Real-Time Voice and Video Applications 133

The World Wide Web, HTTP, and SSL 134

Uniform Resource Locators 134

Finding the Web Server Using DNS 135

Transferring Files with HTTP 137

How the Receiving Host Identifies the Correct Receiving Application 138

Exam Preparation Tasks 140

Review All the Key Topics 140

Complete the Tables and Lists from Memory 140

Definitions of Key Terms 140

Part I Review 142

Part II: Ethernet LAN Basics 147

Chapter 6 Building Ethernet LANs with Switches 149

"Do I Know This Already?" Quiz 149

Foundation Topics 152

Ethernet History 152

Early Ethernet with Coaxial Cabling 152

Ethernet Devices 154

Ethernet Repeaters 154

10BASE-T with Hub 155

Ethernet Transparent Bridges 157

Ethernet Switches 158

Ethernet Standards 159

Ethernet Data-Link Protocols 160

Ethernet Physical Layer Standards 161

Ethernet Competition 162

Switching Logic 164

Layer 2 Switching Basics 164

The Forward Versus Filter Decision 165

How Switches Learn MAC Addresses 167

Flooding Frames 167

Avoiding Loops Using Spanning Tree Protocol 168

LAN Switching Summary 169

Design Choices in Ethernet LANs 170

Collision Domains, Broadcast Domains, and VLANs 170

Collision Domains 170

Broadcast Domains 171

Virtual LANs and Broadcast Domains 172

The Impact of Collision and Broadcast Domains on LAN Design 173

Ethernet LAN Media and Cable Lengths 174

Autonegotiation 175

Autonegotiation Results When Only One Node Uses Autonegotiation 176

Autonegotiation and LAN Hubs 178

Exam Preparation Tasks 179

Review All the Key Topics 179

Complete the Tables and Lists from Memory 179

Definitions of Key Terms 180

Chapter 7 Installing and Operating Nexus Switches 183

"Do I Know This Already?" Quiz 183

Foundation Topics 186

Accessing the Cisco Nexus 5500 Switch CLI 186

Cisco Nexus Switches and the 5500 Switch 186

Accessing the Cisco NX-OS CLI 186

Cabling the Console Connection 187

Configuring the Terminal Emulator for the Console 188

Accessing the CLI with Telnet and SSH in NX-OS 189

Management Interface 190

Password Security for CLI Access 191

User Settings 192

CLI Help Features 194

The debug and show Commands 196

Introduction to Cisco NX-OS 196

Software Modularity in Cisco NX-OS 197

Service Restart in Cisco NX-OS 198

Software High Availability in Cisco NX-OS 199

In-Service Software Upgrades 199

Cisco NX-OS Licensing 200

Cisco NX-OS and Cisco IOS Comparison 201

Configuring Cisco NX-OS Software 202

Configuration Submodes and Contexts 202

Storing Switch Configuration Files 204

Copying and Erasing Configuration Files 206

Initial Configuration (Setup Mode) 208

NX-OS Version and Other Reload Facts 209

Exam Preparation Tasks 211

Review All the Key Topics 211

Complete the Tables and Lists from Memory 211

Definitions of Key Terms 211

Command References 211

Chapter 8 Configuring Ethernet Switching 215

"Do I Know This Already?" Quiz 215

Foundation Topics 217

Configuration of Features in Common on all Nexus Switches 217

Securing the Switch CLI 217

Securing Access with Local Usernames and Passwords 217

Securing Access with External Authentication Servers 218

Configuring Secure Shell 219

Banners 220

History Buffer Commands 221

The logging synchronous and exec-timeout Commands 222

Nexus Switch Configuration and Operation 222

Switch Virtual Interface Concept Inside a Switch 223

Configuring IPv4 on a Cisco Nexus Switch 223

Verifying IPv4 on a Switch 224

Configuring Switch Interfaces 225

Securing Unused Switch Interfaces 226

Predicting the Contents of the MAC Address Table 227

Scenario 1: Communication Between S1 and S2 228

Scenario 2: Communication from S1 to S3 228

Exam Preparation Tasks 230

Review All the Key Topics 230

Complete the Tables and Lists from Memory 230

Definitions of Key Terms 230

Command References 230

Part II Review 234

Part III: Ethernet Virtual LANs and Spanning Tree 239

Chapter 9 VLAN and Trunking Concepts 241

"Do I Know This Already?" Quiz 241

Foundation Topics 244

Virtual LANs and VLAN Trunks 244

Creating Multiswitch VLANs Using Trunking 245

The 802.1Q and ISL VLAN Trunking Protocols 247

Forwarding Data Between VLANs 248

Routing Packets Between VLANs with a Router 249

Routing Packets with a Layer 3 Switch 251

VLAN Trunking Protocol 252

VTP Functions 252

Making VTP Work with VTP Servers and Clients 253

Disabling VTP 256

Summary of VTP Features 257

Exam Preparation Tasks 259

Review All the Key Topics 259

Complete the Tables and Lists from Memory 259

Definitions of Key Terms 259

Chapter 10 VLAN Trunking and Configuration 261

"Do I Know This Already?" Quiz 261

Foundation Topics 264

VLAN Configuration and Verification 264

VLAN Guidelines for Cisco Nexus Switches 264

Creating VLANs and Assigning Access VLANs to an Interface 265

VLAN Configuration Example 1: Full VLAN Configuration 265

VLAN Configuration Example 2: Shorter VLAN Configuration 268

VLAN Trunking Configuration and Verification 268

Controlling Which VLANs Can Be Supported on a Trunk 271

VTP Configuration and Verification 275

Enabling VTP 275

Limiting VTP Using Pruning 278

Exam Preparation Tasks 280

Review All the Key Topics 280

Complete the Tables and Lists from Memory 280

Command Reference to Check Your Memory 280

Chapter 11 Spanning Tree Protocol Concepts 283

"Do I Know This Already?" Quiz 283

Foundation Topics 286

Spanning Tree Protocol (IEEE 802.1D) 286

The Need for Spanning Tree 286

What IEEE 802.1D Spanning Tree Does 288

How Spanning Tree Works 290

The STP Bridge ID and Hello BPDU 291

Electing the Root Switch 292

Choosing Each Switch's Root Port 294

Tiebreakers for Root Port 296

Choosing the Designated Port on Each LAN Segment 296

Influencing and Changing the STP Topology 297

Making Configuration Changes to Influence the STP Topology 298

Reacting to State Changes That Affect the STP Topology 298

How Switches React to Changes with STP 299

Changing Interface States with STP 300

Optional STP Features 301

EtherChannel 302

PortFast 303

BPDU Guard 303

Rapid STP (IEEE 802.1w) 304

RSTP and the Alternate (Root) Port 305

RSTP States and Processes 306

RSTP Backup (Designated) Ports 307

Exam Preparation Tasks 309

Review All the Key Topics 309

Complete the Tables and Lists from Memory 309

Definitions of Key Terms 309

Chapter 12 Cisco Nexus Spanning Tree Protocol Implementation 311

"Do I Know This Already?" Quiz 311

Foundation Topics 314

STP Configuration and Verification 314

Connecting STP Concepts to STP Configuration Options 315

Per-VLAN Configuration Settings 315

The Bridge ID and System ID Extension 316

Per-VLAN Port Costs 317

STP Configuration Option Summary 317

Verifying STP Operation 318

Improving STP Operation 321

Configuring STP Port Costs 321

Configuring Priority to Influence the Root Election 322

Spanning-Tree Port Types 324

Configuring PortFast and BPDU Guard 324

Configuring EtherChannel 326

Configuring a Manual EtherChannel 326

Configuring Dynamic EtherChannels 328

Troubleshooting EtherChannel 329

Incorrect Options on the channel-group Command 329

Configuration Checks Before Adding Interfaces to EtherChannels 331

Exam Preparation Tasks 333

Review All the Key Topics 333

Definitions of Key Terms 333

Command Reference to Check Your Memory 333

Part III Review 336

Part IV: IP Addressing and Subnetting 341

Chapter 13 Perspectives on IPv4 Subnetting 343

"Do I Know This Already?" Quiz 343

Foundation Topics 346

Introduction to Subnetting 346

Subnetting Defined Through a Simple Example 346

Operational View Versus Design View of Subnetting 347

Analyze Subnetting and Addressing Needs 348

Rules About Which Hosts Are in Which Subnet 348

Subnet Rules with Layer 3 Switches 349

Determine the Number of Subnets 351

Determine the Number of Hosts per Subnet 353

One Size Subnet Fits All (Or Not) 354

Defining the Size of a Subnet 354

One Size Subnet Fits All 355

Multiple Subnet Sizes (Variable-Length Subnet Masks) 356

Make Design Choices 357

Choose a Classful Network 357

Public IP Networks 357

Growth Exhausts the Public IP Address Space 358

Private IP Networks 359

Choose an IP Network During the Design Phase 360

Choose the Mask 360

Classful IP Networks Before Subnetting 361

Borrow Host Bits to Create Subnet Bits 361

Choose Enough Subnet and Host Bits 362

Example Design:, 200 Subnets, 200 Hosts 364

Masks and Mask Formats 364

Build a List of All Subnets 365

Plan the Implementation 366

Assign Subnets to Different Locations 367

Choose Static and Dynamic Ranges per Subnet 367

Foundation Topics 369

Review All the Key Topics 369

Complete the Tables and Lists from Memory 369

Definitions of Key Terms 369

Chapter 14 Analyzing Classful IPv4 Networks 371

"Do I Know This Already?" Quiz 371

Foundation Topics 374

Classful Network Concepts 374

IPv4 Network Classes and Related Facts 374

Actual Class A, B, and C Networks 375

Address Formats 376

Default Masks 377

Number of Hosts per Network 377

Deriving the Network ID and Related Numbers 378

Unusual Network IDs and Network Broadcast Addresses 380

Practice with Classful Networks 381

Practice Deriving Key Facts Based on an IP Address 381

Practice Remembering the Details of Address Classes 382

Additional Practice 383

Exam Preparation Tasks 384

Review All the Key Topics 384

Complete the Tables and Lists from Memory 384

Definitions of Key Terms 384

Practice 384

Answers to Earlier Practice Problems 385

Answers to Practice Problem 7 (From Table 14-5) 385

Answers to Practice Problem 8 (From Table 14-5) 386

Answers to Practice Problem 9 (From Table 14-5) 386

Chapter 15 Analyzing Subnet Masks 389

"Do I Know This Already?" Quiz 389

Foundation Topics 392

Subnet Mask Conversion 392

Three Mask Formats 392

Converting Between Binary and Prefix Masks 393

Converting Between Binary and DDN Masks 394

Converting Between Prefix and DDN Masks 396

Practice Converting Subnet Masks 397

Identifying Subnet Design Choices Using Masks 398

Masks Divide the Subnet's Addresses into Two Parts 399

Masks and Class Divide Addresses into Three Parts 400

Classless and Classful Addressing 401

Calculations Based on the IPv4 Address Format 401

Practice Analyzing Subnet Masks 403

Exam Preparation Tasks 405

Review All the Key Topics 405

Complete the Tables and Lists from Memory 405

Definitions of Key Terms 405

Practice 405

Answers to Earlier Practice Problems 406

Chapter 16 Analyzing Existing Subnets 409

"Do I Know This Already?" Quiz 409

Foundation Topics 412

Defining a Subnet 412

An Example with Network and Four Subnets 412

Subnet ID Concepts 414

Subnet Broadcast Address 415

Range of Usable Addresses 415

Analyzing Existing Subnets: Binary 416

Finding the Subnet ID: Binary 416

Finding the Subnet Broadcast Address: Binary 418

Binary Practice Problems 419

Shortcut for the Binary Process 420

Brief Note About Boolean Math 422

Finding the Range of Addresses 422

Analyzing Existing Subnets: Decimal 422

Analysis with Easy Masks 423

Predictability in the Interesting Octet 424

Finding the Subnet ID: Difficult Masks 425

Resident Subnet Example 1 426

Resident Subnet Example 2 427

Resident Subnet Practice Problems 427

Finding the Subnet Broadcast Address: Difficult Masks 428

Subnet Broadcast Example 1 428

Subnet Broadcast Example 2 429

Subnet Broadcast Address Practice Problems 430

Practice Analyzing Existing Subnets 430

A Choice: Memorize or Calculate 430

Additional Practice 431

Exam Preparation Tasks 432

Review All the Key Topics 432

Complete the Tables and Lists from Memory 432

Definitions of Key Terms 432

Practice 432

Answers to Earlier Practice Problems 433

Chapter 17 Fundamentals of IP Version 6 437

"Do I Know This Already?" Quiz 437

Foundation Topics 440

Introduction to IP Version 6 440

The Need and Effect of a New Internet Protocol 440

Additional Motivations for IPv6 441

Many Protocols Updated 442

Introduction to IPv6 Addresses and Prefixes 442

Representing Full (Unabbreviated) IPv6 Addresses 443

Abbreviating IPv6 Addresses 443

Expanding IPv6 Addresses 444

Representing the Prefix Length of an Address 445

Calculating the IPv6 Prefix (Subnet ID) 445

Assigning Unique IPv6 Prefixes Across the Globe 447

IPv6 Addressing and Subnetting 449

Global Unicast Addresses and IPv6 Subnetting 449

IPv6 Subnetting Concepts 450

Assign Subnets and Addresses 452

The Actual Global Unicast Addresses 453

Unique Local Unicast Addresses 453

Link Local Addresses 454

IPv6 Multicast Addresses 455

Miscellaneous IPv6 Addresses 456

Implementing IPv6 457

IPv6 Address Assignment 457

Dynamic Assignment of the Interface ID with EUI-64 457

Discovering the IPv6 Prefix with SLAAC 459

Dynamic Configuration Using Stateful DHCP 460

IPv6 Transition and Coexistence 461

Dual Stack 462

Tunneling IPv6 Inside IPv4 462

Exam Preparation Tasks 464

Review All the Key Topics 464

Complete the Tables and Lists from Memory 464

Definitions of Key Terms 464

Answers to Earlier Practice Problems 464

Part IV Review 466

Part V: IPv4 Routing 471

Chapter 18 IPv4 Routing Concepts 473

"Do I Know This Already?" Quiz 473

Foundation Topics 475

IP Routing 475

IPv4 Routing Process Reference 475

An Example of IP Routing 478

Host Forwards the IP Packet to the Default Router (Gateway) 478

Routing Step 1: Decide Whether to Process the Incoming Frame 479

Routing Step 2: Deencapsulation of the IP Packet 480

Routing Step 3: Choosing Where to Forward the Packet 480

Routing Step 4: Encapsulating the Packet in a New Frame 481

Routing Step 5: Transmitting the Frame 482

Internal Processing on Cisco Routers 482

Potential Routing Performance Issues 483

Cisco Router Fast Switching and CEF 483

Cisco Nexus Switch Operations with Routing 484

Exam Preparation Tasks 488

Review All the Key Topics 488

Complete the Tables and Lists from Memory 488

Definitions of Key Terms 488

Chapter 19 Cisco Nexus IPv4 Routing Configuration 491

"Do I Know This Already?" Quiz 491

Foundation Topics 494

Configuring Connected Routes on Cisco Nexus Switches 494

Direct and Local Routes and the ip address Command 494

Routing Between Subnets on VLANs 497

Configuring Routing to VLANs Using a Layer 3 Switch 497

Configuring Static Routes 499

Static Route Configuration 499

Static Default Routes 501

Exam Preparation Tasks 502

Review All the Key Topics 502

Complete the Tables and Lists from Memory 502

Definitions of Key Terms 502

Command Reference to Check Your Memory 502

Chapter 20 IPv4 Routing Protocol Concepts 505

"Do I Know This Already?" Quiz 505

Foundation Topics 508

Introduction to Routing Protocols 508

History of Interior Gateway Protocols 508

Comparing IGPs 509

Distance Vector Basics 511

The Concept of a Distance and a Vector 511

Full Update Messages and Split Horizon 512

Monitoring Neighbor State with Periodic RIP Updates 513

Split Horizon 513

Route Poisoning 514

RIP Concepts and Operation 515

Features of Both RIPv1 and RIPv2 515

Differences Between RIPv1 and RIPv2 516

EIGRP Concepts and Operation 517

EIGRP Maintains Neighbor Status Using Hello 518

EIGRP Topology and the Metric Calculation 518

EIGRP Convergence 519

EIGRP Summary 521

Understanding the OSPF Link-State Routing Protocol 521

OSPF Comparisons with EIGRP 521

Building the OSPF LSDB and Creating IP Routes 522

Topology Information and LSAs 522

Applying Dijkstra SPF Math and OSPF Metrics to Find the Best Routes 524

Scaling OSPF Through Hierarchical Design 525

Exam Preparation Tasks 528

Review All the Key Topics 528

Definitions of Key Terms 528

Chapter 21 Nexus Routing Protocol Configuration 531

"Do I Know This Already?" Quiz 531

Foundation Topics 533

RIP Version 2 Configuration on NX-OS 536

EIGRP Configuration on NX-OS 541

OSPF Configuration on NX-OS 546

Exam Preparation Tasks 551

Review All the Key Topics 551

Definitions of Key Terms 551

Command Reference to Check Your Memory 551

Chapter 22 IPv4 Access Control Lists on Cisco Nexus Switches 555

"Do I Know This Already?" Quiz 555

Foundation Topics 557

IPv4 Access Control List Basics 557

ACL Location and Direction 557

Matching Packets 558

Taking Action When a Match Occurs 559

Types of IP ACLs 559

List Logic with IP ACLs 560

Matching Logic and Command Syntax 562

Matching TCP and UDP Port Numbers 562

Implementing Cisco Nexus IPv4 ACLs 566

ACL Example 1 566

ACL Example 2 567

Practice Cisco Nexus IPv4 ACLs 568

Practice Building access-list Commands 568

Exam Preparation Tasks 570

Review All the Key Topics 570

Definitions of Key Terms 570

Appendix H Practice Problems 570

Command Reference to Check Your Memory 570

Part V Review 572

Part VI: Final Preparation 577

Chapter 23 Final Review 579

Advice About the Exam Event 579

Learn the Question Types Using the Cisco Certification Exam Tutorial 579

Think About Your Time Budget Versus Numbers of Questions 580

A Suggested Time-Check Method 581

Miscellaneous Pre-Exam Suggestions 582

Exam-Day Advice 582

Exam Review 583

Practice Subnetting and Other Math-Related Skills 583

Take Practice Exams 585

Practicing Taking the DCICN Exam 585

Advice on How to Answer Exam Questions 586

Taking Other Practice Exams 587

Find Knowledge Gaps Through Question Review 588

Practice Hands-On CLI Skills 591

Review Mind Maps from Part Review 591

Other Study Tasks 591

Final Thoughts 591

Part VII: Appendices 593

Appendix A Answers to the "Do I Know This Already?" Quizzes 595

Appendix B DCICN Exam Updates 613

Appendix C Numeric Reference Tables 615

Appendix D Nexus Lab Guide 623

DVD-only Appendices

Appendix E Practice for Chapter 14: Analyzing Classful IPv4 Networks

Appendix F Practice for Chapter 15: Analyzing Subnet Masks

Appendix G Practice for Chapter 16: Analyzing Existing Subnets

Appendix H Practice for Chapter 22: IPv4 Access Control Lists on Cisco Nexus Switches

Appendix I Memory Tables

Appendix J Memory Tables Answer Key


9781587204548 TOC 10/15/2014

Additional information

CCNA Data Center DCICN 640-911 Official Cert Guide by Wendell Odom
Wendell Odom
Used - Very Good
Pearson Education (US)
Book picture is for illustrative purposes only, actual binding, cover or edition may vary.
This is a used book - there is no escaping the fact it has been read by someone else and it will show signs of wear and previous use. Overall we expect it to be in very good condition, but if you are not entirely satisfied please get in touch with us.