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CCENT ICND1 Study Guide: Exam 100-105, 3rd Edition

CCENT ICND1 Study Guide: Exam 100-105, 3rd Edition

Todd Lammle

ISBN: 978-1-119-28880-0

Jul 2016

696 pages

$26.99

Description

Complete CCENT preparation with hands-on practice and robust study aids

The CCENT Study Guide, 3rd Edition offers complete conceptual and practical study tools for the Cisco Certified Entry Networking Technician exam. Written by networking expert Todd Lammle, this study guide provides everything you need to pass the CCENT with flying colors. 100% coverage of the all exam objectives includes detailed discussion on IP data networks, IPv4 and IPv6 addressing, switching and routing, network security, and much more. Todd draws on 30 years of experience to give you practical examples and real-world insights that go way beyond exam prep, and plenty of hands-on labs help you gain experience with important tasks. The Sybex interactive online learning tools include a pre-assessment test to show you how much you already know, two bonus ICND-1 practice exams to test your understanding, and hundreds of sample questions and over 100 flashcards provide quick review.

The CCENT is the entry-level certification for those looking to break into the networking field. As a part of the CCNA certification process, the exam is comprehensive—and a comprehensive study guide is essential. This study guide helps you develop the skills and knowledge you need to be confident on exam day.

  • Review all CCENT exam objectives
  • Access online study tools and practice ICND1 exams
  • Get hands-on experience with dozens of labs
  • Master switching and routing, troubleshooting, security, and more

Don't bother parsing technical references or trying to figure it out yourself. This book allows you to learn and review with networking's leading authority, with clear explanations, practical instruction, and real-world insight. When you're ready for the next step in your career, the CCENT Study Guide, 3rd Edition gets you on track to succeed on the CCENT exam.

Related Resources

Introduction xxi

Assessment Test xxxvii

Chapter 1 Internetworking 1

Internetworking Basics 2

Internetworking Models 11

The Layered Approach 11

Advantages of Reference Models 12

The OSI Reference Model 13

The Application Layer 15

The Presentation Layer 16

The Session Layer 16

The Transport Layer 16

The Network Layer 22

The Data Link Layer 24

The Physical Layer 27

Summary 29

Exam Essentials 29

Written Labs 30

Written Lab 1.1: OSI Questions 30

Written Lab 1.2: Defining the OSI Layers and Devices 32

Written Lab 1.3: Identifying Collision and Broadcast Domains 32

Review Questions 34

Chapter 2 Ethernet Networking and Data Encapsulation 39

Ethernet Networks in Review 40

Collision Domain 41

Broadcast Domain 42

CSMA/CD 43

Half- and Full-Duplex Ethernet 45

Ethernet at the Data Link Layer 47

Ethernet at the Physical Layer 53

Ethernet Cabling 57

Straight-Through Cable 57

Crossover Cable 58

Rolled Cable 60

Fiber Optic 62

Data Encapsulation 64

The Cisco Three-Layer Hierarchical Model 67

The Core Layer 69

The Distribution Layer 69

The Access Layer 70

Summary 70

Exam Essentials 71

Written Labs 72

Written Lab 2.1: Binary/Decimal/Hexadecimal Conversion 72

Written Lab 2.2: CSMA/CD Operations 75

Written Lab 2.3: Cabling 76

Written Lab 2.4: Encapsulation 76

Review Questions 77

Chapter 3 Introduction to TCP/IP 83

Introducing TCP/IP 84

A Brief History of TCP/IP 85

TCP/IP and the DoD Model 85

The Process/Application Layer Protocols 87

The Host-to-Host or Transport Layer Protocols 97

The Internet Layer Protocols 106

IP Addressing 114

IP Terminology 114

The Hierarchical IP Addressing Scheme 115

Private IP Addresses (RFC 1918) 120

IPv4 Address Types 121

Layer 2 Broadcasts 122

Layer 3 Broadcasts 122

Unicast Address 123

Multicast Address 124

Summary 125

Exam Essentials 125

Written Labs 127

Written Lab 3.1: TCP/IP 127

Written Lab 3.2: Mapping Applications to the DoD Model 127

Review Questions 129

Chapter 4 Easy Subnetting 133

Subnetting Basics 134

How to Create Subnets 136

Subnet Masks 136

Classless Inter-Domain Routing (CIDR) 138

IP Subnet-Zero 140

Subnetting Class C Addresses 140

Subnetting Class B Addresses 152

Subnetting Class A Addresses 161

Summary 164

Exam Essentials 164

Written Labs 165

Written Lab 4.1: Written Subnet Practice #1 165

Written Lab 4.2: Written Subnet Practice #2 166

Written Lab 4.3: Written Subnet Practice #3 167

Review Questions 168

Chapter 5 VLSMs, Summarization, and Troubleshooting TCP/IP 173

Variable Length Subnet Masks (VLSMs) 174

VLSM Design 176

Implementing VLSM Networks 177

Summarization 184

Troubleshooting IP Addressing 187

Determining IP Address Problems 190

Summary 194

Exam Essentials 195

Written Lab 5 196

Lab 5.1: Summarization Practice 196

Review Questions 197

Chapter 6 Cisco’s Internetworking Operating System (IOS) 203

The IOS User Interface 204

Cisco IOS 204

Connecting to a Cisco IOS Device 205

Bringing Up a Switch 207

Command-Line Interface (CLI) 207

Entering the CLI 208

Overview of Router Modes 208

CLI Prompts 209

Editing and Help Features 211

Administrative Configurations 216

Hostnames 217

Banners 217

Setting Passwords 219

Encrypting Your Passwords 225

Descriptions 227

Router and Switch Interfaces 229

Bringing Up an Interface 232

Viewing, Saving, and Erasing Configurations 238

Deleting the Configuration and Reloading the Device 240

Verifying Your Configuration 240

Summary 253

Exam Essentials 254

Written Lab 6: IOS Understanding 257

Hands-on Labs 257

Hands-on Lab 6.1: Erasing an Existing Configuration 258

Hands-on Lab 6.2: Exploring User, Privileged, and Configuration Modes 258

Hands-on Lab 6.3: Using the Help and Editing Features 259

Hands-on Lab 6.4: Saving a Configuration 260

Hands-on Lab 6.5: Setting Passwords 261

Hands-on Lab 6.6: Setting the Hostname, Descriptions, IP Address, and Clock Rate 263

Review Questions 265

Chapter 7 Managing a Cisco Internetwork 271

The Internal Components of a Cisco Router and Switch 272

The Router and Switch Boot Sequence 273

Backing Up and Restoring the Cisco Configuration 274

Backing Up the Cisco Configuration 275

Restoring the Cisco Configuration 277

Erasing the Configuration 277

Configuring DHCP 278

DHCP Relay 279

Verifying DHCP on Cisco IOS 280

Syslog 281

Configuring and Verifying Syslog 283

Network Time Protocol (NTP) 286

Exploring Connected Devices Using CDP and LLDP 287

Getting CDP Timers and Holdtime Information 288

Gathering Neighbor Information 289

Documenting a Network Topology Using CDP 293

Using Telnet 296

Telnetting into Multiple Devices Simultaneously 298

Checking Telnet Connections 298

Checking Telnet Users 299

Closing Telnet Sessions 299

Resolving Hostnames 300

Building a Host Table 300

Using DNS to Resolve Names 302

Checking Network Connectivity and Troubleshooting 304

Using the ping Command 304

Using the traceroute Command 305

Debugging 306

Using the show processes Command 308

Summary 309

Exam Essentials 309

Written Labs 7 311

Written Lab 7.1: IOS Management 311

Written Lab 7.2: Router Memory 312

Hands-on Labs 312

Hands-on Lab 7.1: Backing Up the Router Configuration 313

Hands-on Lab 7.2: Using the Cisco Discovery Protocol (CDP) 313

Hands-on Lab 7.3: Using Telnet 314

Hands-on Lab 7.4: Resolving Hostnames 315

Review Questions 317

Chapter 8 Managing Cisco Devices 321

Managing the Configuration Register 322

Understanding the Configuration Register Bits 322

Checking the Current Configuration Register Value 324

Boot System Commands 325

Recovering Passwords 326

Backing Up and Restoring the Cisco IOS 329

Verifying Flash Memory 330

Backing Up the Cisco IOS 331

Restoring or Upgrading the Cisco Router IOS 332

Using the Cisco IOS File System (Cisco IFS) 335

Licensing 339

Right-To-Use Licenses (Evaluation Licenses) 342

Backing Up and Uninstalling the License 345

Summary 346

Exam Essentials 346

Written Lab 8 347

Written Lab 8.1: IOS Management 348

Hands-on Labs 348

Hands-on Lab 8.1: Backing Up Your Router IOS 348

Hands-on Lab 8.2: Upgrading or Restoring Your Router IOS 349

Review Questions 350

Chapter 9 IP Routing 355

Routing Basics 357

The IP Routing Process 359

The Cisco Router Internal Process 364

Testing Your IP Routing Understanding 365

Configuring IP Routing 370

Corp Configuration 371

SF Configuration 373

LA Configuration 377

Configuring IP Routing in Our Network 379

Static Routing 380

Default Routing 385

Dynamic Routing 388

Routing Protocol Basics 388

Routing Information Protocol (RIP) 390

Configuring RIP Routing 391

Holding Down RIP Propagations 394

Summary 397

Exam Essentials 397

Written Lab 9 398

Hands-on Labs 399

Hands-on Lab 9.1: Creating Static Routes 400

Hands-on Lab 9.2: Configuring RIP Routing 401

Review Questions 403

Chapter 10 Layer 2 Switching 409

Switching Services 410

Three Switch Functions at Layer 2 411

Port Security 415

Configuring Catalyst Switches 420

Catalyst Switch Configuration 421

Verifying Cisco Catalyst Switches 428

Summary 431

Exam Essentials 431

Written Lab 10 432

Hands-on Labs 432

Lab 10.1: Configuring Layer 2 Switches 433

Lab 10.2: Verifying Layer 2 Switches 434

Lab 10.3: Configuring Port Security 435

Review Questions 436

Chapter 11 VLANs and Inter-VLAN Routing 441

VLAN Basics 442

Broadcast Control 445

Security 446

Flexibility and Scalability 446

Identifying VLANs 447

Frame Tagging 449

VLAN Identification Methods 450

Routing between VLANs 452

Configuring VLANs 454

Assigning Switch Ports to VLANs 457

Configuring Trunk Ports 459

Configuring Inter-VLAN Routing 463

Summary 470

Exam Essentials 470

Written Lab 11 471

Hands-on Labs 471

Hands-on Lab 11.1: Configuring and Verifying VLANs 472

Hands-on Lab 11.2: Configuring and Verifying Trunk Links 472

Hands-on Lab 11.3: Configuring Router on a Stick Routing 473

Hands-on Lab 11.4: Configuring IVR with a Layer 3 Switch 474

Review Questions 475

Chapter 12 Security 481

Perimeter, Firewall, and Internal Routers 482

Introduction to Access Lists 483

Mitigating Security Issues with ACLs 486

Standard Access Lists 487

Wildcard Masking 488

Standard Access List Example 490

Controlling VTY (Telnet/SSH) Access 494

Extended Access Lists 495

Extended Access List Example 1 499

Extended Access List Example 2 501

Extended Access List Example 3 502

Named ACLs 503

Remarks 505

Monitoring Access Lists 506

Summary 508

Exam Essentials 509

Written Lab 12 509

Hands-on Labs 510

Hands-on Lab 12.1: Standard IP Access Lists 511

Hands-on Lab 12.2: Extended IP Access Lists 512

Review Questions 515

Chapter 13 Network Address Translation (NAT) 519

When Do We Use NAT? 520

Types of Network Address Translation 522

NAT Names 522

How NAT Works 523

Static NAT Configuration 525

Dynamic NAT Configuration 525

PAT (Overloading) Configuration 526

Simple Verification of NAT 527

Testing and Troubleshooting NAT 527

Summary 533

Exam Essentials 533

Written Lab 13 533

Hands-on Labs 534

Lab 13.1: Preparing for NAT 535

Lab 13.2: Configuring Dynamic NAT 536

Lab 13.3: Configuring PAT 538

Review Questions 540

Chapter 14 Internet Protocol Version 6 (IPv6) 545

Why Do We Need IPv6? 547

The Benefits and Uses of IPv6 547

IPv6 Addressing and Expressions 549

Shortened Expression 549

Address Types 550

Special Addresses 552

How IPv6 Works in an Internetwork 553

Manual Address Assignment 553

Stateless Autoconfiguration (eui-64) 554

DHCPv6 (Stateful) 557

IPv6 Header 557

ICMPv6 559

IPv6 Routing Protocols 563

Static Routing with IPv6 563

Configuring IPv6 on Our Internetwork 564

Configuring Routing on Our Internetwork 567

Summary 570

Exam Essentials 571

Written Labs 14 571

Written Lab 14.1 571

Written Lab 14.2 572

Hands-on Labs 572

Hands-on Lab 14.1: Manual and Stateful Autoconfiguration 572

Hands-on Lab 14.2: Static and Default Routing 574

Review Questions 575

Appendix A Answers to Written Labs 579

Chapter 1: Internetworking 580

Written Lab 1.1: OSI Questions 580

Written Lab 1.2: Defining the OSI Layers and Devices 581

Written Lab 1.3: Identifying Collision an Broadcast Domains 581

Chapter 2: Ethernet Networking and Data Encapsulation 582

Written Lab 2.1: Binary/Decimal/Hexadecimal Conversion 582

Written Lab 2.2: CSMA/CD Operations 584

Written Lab 2.3: Cabling 584

Written Lab 2.4: Encapsulation 584

Chapter 3: Introduction to TCP/IP 585

Written Lab 3.1: TCP/IP 585

Written Lab 3.2: Mapping Applications to the DoD Model 585

Chapter 4: Easy Subnetting 586

Written Lab 4.1: Written Subnet Practice #1 586

Written Lab 4.2: Written Subnet Practice #2 587

Written Lab 4.3: Written Subnet Practice #3 587

Chapter 5: VLSMs, Summarization and Troubleshooting TCP/IP 588

Chapter 6: Cisco’s Internetworking Operating System (IOS) 588

Written Lab 6: Cisco IOS 588

Chapter 7: Managing a Cisco Internetwork 589

Written Lab 7.1: IOS Management 589

Written Lab 7.2: Router Memory 589

Chapter 8: Managing Cisco Devices 590

Written Lab 8.1: IOS Management 590

Chapter 9: IP Routing 590

Chapter 10: Layer 2 Switching 591

Chapter 11: VLANs and InterVLAN Routing 591

Chapter 12: Security 592

Chapter 13: Network Address Translation (NAT) 593

Chapter 14: Internet Protocol Version 6 (IPv6) 593

Written Lab 14.1: IPv6 Foundation 593

Written Lab 14.2: EUI-64 Format 594

Appendix B Answers to Review Questions 595

Chapter 1: Internetworking 596

Chapter 2: Ethernet Networking and Data Encapsulation 598

Chapter 3: Introduction to TCP/IP 600

Chapter 4: Easy Subnetting 601

Chapter 5: VLSMs, Summarization, and Troubleshooting TCP/IP 603

Chapter 6: Cisco’s Internetworking Operating System (IOS) 605

Chapter 7: Managing a Cisco Internetwork 607

Chapter 8: Managing Cisco Devices 608

Chapter 9: IP Routing 610

Chapter 10: Layer 2 Switching 611

Chapter 11: VLANs and InterVLAN Routing 613

Chapter 12: Security 615

Chapter 13: Network Address Translation (NAT) 617

Chapter 14: Internet Protocol Version 6 (IPv6) 618

Appendix C Disabling and Configuring Network Services 621

Blocking SNMP Packets 622

Disabling Echo 622

Turning off BootP and Auto-Config 623

Disabling the HTTP Interface 624

Disabling IP Source Routing 624

Disabling Proxy ARP 624

Disabling Redirect Messages 624

Disabling the Generation of ICMP Unreachable Messages 625

Disabling Multicast Route Caching 625

Disabling the Maintenance Operation Protocol (MOP) 625

Turning Off the X.25 PAD Service 626

Enabling the Nagle TCP Congestion Algorithm 626

Logging Every Event 626

Disabling Cisco Discovery Protocol 627

Disabling the Default Forwarded UDP Protocols 627

Cisco’s auto secure 628

Index 631

Errata in text
The corrected table 8.1 is attached here
Download
Errata in text
Replace last page in book (see attached Word document)
Download
ChapterPageDetailsDatePrint Run
IntroductionxxviiiErrata in Text
Currently reads:
The interactive online learning environment that accompanies the CCENT ICND1 Study Guide, Exam 100-101
Should read:
The interactive online learning environment that accompanies the CCENT ICND1 Study Guide, Exam 100-105

IntroductionxxviiiErrata in Text
Currently reads:
Other study tools
Should read:
Glossary

IntroductionxxviiiErrata in Text
Currently reads:
LammleSim IOS version At www.lammle.com/ccna I have provided an IOS simulator that can be used with all of the hands-on labs in this book. You can also download this free simulator from http://www.wiley.com/go/sybextestprep.
Should read:
30 Days of Free Video Training from ITPro.TV and Sybex Take your exam prep to a new level! Through expert live and pre-recorded interactive learning, you will receive an additional 12 hours of expert CCENT ICND1 training from the subject-matter experts at ITPro.TV.
14-Jul-16

6237Errata in text
INCORRECT:
Every Cisco router ships with a default serial link bandwidth of
T1 (1.544 Mbps).

CORRECT:
Every Cisco router ships with a default serial link bandwidth of
T1 (1.544 kbps).
2-5-18

8322Errata in text
Table 8.1 shows the error, the revised table uploaded in the downloads section
20-Jul-17

8323Errata in text
Table 8.2 - Software Configuration Meanings
In the Bit column, row that displays 8

INCORRECT:
Hex value is 0x101

CORRECT:
Hex value should be 0x0100
2-5-18

Appendix B601Errata in text
Answers to Review Questions

Chapter 4: Easy Subnetting
INCORRECT:
4. C.
CORRECT:
4. F.
2-3-18

6606Errata in text
Appendix B: Answers to Review Questions - Chapter 6
Answer #13
INCORRECT:
C.
CORRECT:
D.
2-5-18

Appendix B612Errata in text
Answers to Review Questions

INCORRECT:
11. B, C. Shutdown and protect mode will alert you via SNMP that a
violation has occurred on a port.
CORRECT:
11. A, C. Restrict and shutdown modes will alert you via SNMP
that a violation has occurred on a port.
2-3-18

10612Errata in text
Appendix B : Answers to Review Questions
Answer #11
INCORRECT:
A, C. Restrict and shutdown modes will alert you via SNMP that a
violation has occurred on a port.

CORRECT:
A, C. The Restrict violation mode drops packets with unknown source
addresses until you remove enough secure MAC addresses to drop
below the maximum value. However, it also generates a log message,
causes the security violation counter to increment, and sends an
SNMP trap. Shutdown is the default violation mode. The shutdown
violation mode puts the interface into an error-disabled state
immediately. The entire port is shut down. Also, in this mode, the
system generates a log message, sends an SNMP trap, and increments
the violation counter. To make the interface usable, you must perform
a shut/no shut on the interface. The protect violation
mode also drops packets with unknown source addresses until you
remove enough secure MAC addresses to drop below the maximum value.
2-5-18

652Errata in Text
Currently reads:
Register on Sybex.com to gain access to the comprehensive online interactive learning environment and test bank to help you study for your CCENT certification.
Should read:
Register on Sybex.com to gain access to the comprehensive online interactive learning environment and test bank to help you study for your CCENT ICND1 exam.
14-Jul-16

652Errata in Text
In adverts page Currently reads:
• test prep before the exam
Should read:
test prep before the exam

Note: Remove Bullet
14-Jul-16

652Errata in Text
In adverts page Currently reads:
• to know for the exam
Should read:
to know for the exam

Note: Remove Bullet
14-Jul-16

652Errata in Text
Insert the following as 5th Bulleted point in Advert page:
30 Days of Free Video Training from ITPro.TV and Sybex to take your exam prep to a new level! Through expert live and pre-recorded interactive learning, access an additional 12 hours of expert CCENT ICND1 training from the subject-matter experts at ITPro.TV.
14-Jul-16

bAdvert696Errata in text
Back-of-book ad - Replace last page in book (see attached Word document in the download section).
30-Oct-17