CCENT ICND1 100-101 Exam Cram

 
 
Pearson It Certification (Verlag)
  • 2. Auflage
  • |
  • erschienen am 13. Dezember 2013
 
E-Book | ePUB mit Adobe-DRM | Systemvoraussetzungen
978-0-13-344844-3 (ISBN)
 

Prepare for Cisco CCENT ICND1 100-101 exam success with this Cisco Exam Cram from Pearson IT Certification, a leader in IT.

Cisco CCENT ICND1 100-101 Exam Cram, Second Edition is the perfect study guide to help you pass the Cisco ICND1 100-101 exam, providing coverage and practice questions for every exam topic. The book contains an extensive set of preparation tools such as exam objective mapping; a self-assessment section that helps you evaluate your motivations and exam readiness; concise, easy-to-read exam topic overviews; Exam Alerts that highlight key concepts; bullet lists and summaries for easy review; Cram Savers, Cram Quizzes, and chapter-ending practice questions that help you assess your knowledge and test your understanding; Notes that indicate areas of concern or specialty training; Tips to help you build a better foundation of knowledge; and an extensive glossary of terms and acronyms. The book also contains the extremely useful Cram Sheet that represents a collection of the most difficult-to-remember facts and numbers you should memorize before taking the test.

Covers the critical information you'll need to know to score higher on your Cisco CCENT ICND1 100-101 exam!

· Identify the protocols that operate at specific OSI layers

· Learn the details of custom subnetting with IPv4

· Understand and implement IPv6

· Connect, configure, and manage Cisco routers and switches

· Set up security for routers and switches

· Create VLANs and set up switch-to-switch trunk links

· Configure, verify, and troubleshoot OSPFv2 and OSPFv3

· Anticipate the actions a router will take

· Understand and use CDP for neighbor discovery

· Learn the detailed learning and forwarding process of both routers and switches

· Filter traffic from one network to another with access control lists (ACLs)

· Deploy Network Address Translation (NAT) and IOS router DHCP services

· Troubleshoot many types of network problems

Mike Valentine has been in the IT field for 16 years, focusing on network design and implementation. He is a Cisco Certified Systems Instructor (#31461) and specializes in Cisco Unified Communications instruction as well as CCNA and CCNP courses. His accessible, humorous, and effective teaching style has demystified Cisco for hundreds of students since he began teaching in 2002.

Keith Barker, CCIE No. 6783 R/S & Security, is a 27-year veteran of the networking industry. He currently works at CBT Nuggets. His past experience includes EDS, Blue Cross, Paramount Pictures, and KnowledgeNET, and he has delivered CCIE-level training for several years.

2. Auflage
  • Englisch
  • Upper Saddle River
  • |
  • USA
Pearson Education (US)
  • Für Beruf und Forschung
  • 19,34 MB
978-0-13-344844-3 (9780133448443)

Michael Valentine has been in the IT field for 16 years, focusing on network design and implementation. He is a Cisco Certified Systems Instructor (#31461) and specializes in Cisco Unified Communications instruction and in CCNA and CCNP courses. His accessible, humorous, and effective teaching style has demystified Cisco for hundreds of students since he began teaching in 2002. Michael has a Bachelor of Arts degree from the University of British Columbia and currently holds CCNA, CCDA, CCNP, and CCNP-Voice certifications. In addition to the popular Exam Cram 2: CCNA and CCENT books, Michael co-authored the Official Certification Guide for CCNA-Voice and has contributed to and served as technical editor for the Cisco Press titles CCNP ONT Official Exam Certification Guide and CCNA Flashcards, among others. Michael has also developed courseware and lab guides for Official Cisco Curriculum courses and custom classes for individuals and corporations.

Keith Barker, CCIE No. 6783 R/S & Security, is a 27-year veteran of the networking industry. He currently works at CBT Nuggets. His past experience includes EDS, Blue Cross, Paramount Pictures, and KnowledgeNET, and he has delivered CCIE-level training for several years. As part of the original set of Cisco VIPs for the Cisco Learning Network, he continues to give back to the community in many ways. He is CISSP, HP, PaloAlto, Brocade, and Juniper certified, loves to teach, and keeps many of his video tutorials at http://www.youtube.com/keith6783. You can reach him on Facebook at "Keith Barker Networking."

Introduction . . . . . . . . . . . . . . . . . . . 1

Taking a Certification Exam . . . . . . . . . . . . . . . 2

Tracking Your Certification Status . . . . . . . . . . . . 3

How to Prepare for an Exam . . . . . . . . . . . . . . . . 4

What This Book Will Not Do . . . . . . . . . . . . . . . 5

What This Book Is Designed to Do . . . . . . . . . . . . 5

About This Book . . . . . . . . . . . . . . . . . . . 6

CCENT Official Exam Topics . . . .. . . . . 6

Chapter Formats . . . . . . . . . . . . . . . . . 12

Pearson IT Certification Practice Test Engine and Questions on the CD-ROM . . . 14

Install the Software from the CD . . . . . . . . .. . . . . 14

Activate and Download the Practice Exam . . . . . . . . . . 15

Activating Other Exams . . . . . . . . . . . . . . . 16

Contacting the Authors . . . . . . . . . . . 16

Self-Assessment . . . . . . . . . . . . . . . . 17

CCENT in the Real World . . . . . . . . . . . . . 17

The Ideal CCENT Candidate . . . . . . . . . . . . 18

Put Yourself to the Test . . . . . . . . . . 19

CHAPTER 1: Networking Fundamentals . . . . . . . 25

Essential Terms and Components . . . .. . . . . . . . 26

Topologies . . . . . . .. . . . . . . . 27

Ethernet . . . . . . . . . . . . . . 28

WAN Technologies . . . . . . . . . . . 31

Review Questions . . . . . . . . . . . . . . . . . 34

Answers to Review Questions . . . . . . . . . . 36

What Next? . . . . . . . . . . . . . . 37

CHAPTER 2: Network Models . . . . . . . . 39

Cisco Hierarchical Design . . . .. . . . . . . . . . . 40

Access Layer . . . . . . . . . . . . . . . . . 40

Distribution Layer . . . . . . . . . . . . . 41

Core Layer . . . . . . . . . . . . . . . . . 41

Advantages of the Three-Layer Model . . .. . . . . 42

OSI Model . . . . . . . . . . . . . . . . 44

Layer 7: The Application Layer . . . . . . . . . 45

Layer 6: The Presentation Layer . . . . . . . . . 47

Layer 5: The Session Layer . . .. . . . . . . . 47

Layer 4: The Transport Layer . . . . . . . . 47

Layer 3: The Network Layer . . . .. . . . . . . 54

Layer 2: The Data Link Layer . . . . . . . . . . . 56

Layer 1: The Physical Layer . . . . . . . . . . . . . 57

TCP/IP Model . . . . . .. . . . . . . 61

Review Questions . . . . . . . . . .. . . . . . . 64

Answers to Review Questions . . . . . . . . . . . . . 67

CHAPTER 3: Concepts in IP Addressing . . . . . . . 69

Binary . . . . . . . . . . .. . . . . 70

Hexadecimal . . . . . . . .. . . . . . . . 74

Conversion Between Binary, Hex, and Decimal . . . . . . 75

Decimal to Hexadecimal Conversions . . . . . . . . 75

Hexadecimal to Decimal Conversions . . . .. . . . . 75

IP Address Components . . . . . . . . . . . . . 77

Address Class . . . . . . . . . . . . . . 77

Public and Private IP Addresses . . . . . . . . . 78

Default Subnet Mask . . . . . . . . . . . 78

The Network Field . . . . . . .. . . . . . . 79

The Host Field . . . . . . . . . . . . . . . . 80

Nondefault Masks . . . . . . . . . . . . . 80

The Subnet Field . . . . . . . . .. . . . . . 81

Subnetting . . . . . . . . . . . . . . . . . . . . . 82

Address Class and Default Mask . . . . . . . . . . . . . 83

The Increment . . . . . . . . . . . . . . . . . . . 84

Number of Hosts . . . . . . . . .. . . . . . 86

The Broadcast ID . . . . . . . . . . . . . 88

Number of Subnets . . . . . . . . .. . . . . . . 89

Working with Subnetting Questions . . . . . . . 91

The Subnetting Chart . . . . . . . . . . . 93

VLSM . . . . . . . . . . . . . . . . . . . . 96

Route Summarization . . . . . . . . . . . . . . . . 100

Summarization Guidelines . . . . . .. . . . . 102

Determining Summary Addresses . . . . . . . 104

IPv6 . . . . . . . . . . . .. . . . . . . . . 110

IPv6 Address Allocation . . . . . . . . . . . . . . . 112

IPv6 Address Notation . . . . . . . . . . . . 113

Types of IPv6 Addresses . . . . . . . . . . 114

IPv6 Address Configuration . . . . .. . . . 115

IPv6 Router Configuration . . . . . .. . . . . 116

IPv6 Features . . . . . . . . . . . . . . . 117

The IPv6 Header . . . . . . . .. . . . 118

IPv6 Transition Strategies . . . . . . . . . . 119

Review Questions . . . . . . . . . . . .. . . 122

Answers to Review Questions . . . . . . . . . 128

What Next? . . . . . . . . . . . . .. . . . 131

CHAPTER 4: Working with Cisco Equipment. . . . . . . 133

Introducing Your Cisco Gear . . . . . . . . . . . . 134

External Connections . . . . . .. . . . . . . . 135

Other Connections . . . . . . . . . . . . . . . . 139

Connecting and Configuring Cisco Devices . . . . . . . . 141

Device Memory Locations . . . . . . . . . 142

IOS Startup Process . . . . . . .. . . . . 142

Setup Mode . . . . . . . . . . . . . . 144

Configuration Register . . . . .. . . . . 144

Password Recovery . . . . . . . . . . . 145

Command-Line Modes . . . . .. . . . . 146

Command Shortcuts . . . . . . . . . . . . . 148

Context-Sensitive Help . . . . . . . . . 149

Managing IOS Licensing . . . . . . . . . . . 150

Remote Management . . . . . . . . . . . . . . 152

Telnet . . . . . . . . . . . . . . . . . 152

Secure Shell . . . . . . . . . . . . . 154

Cisco Discovery Protocol . . . . . . . . . . . . . . 155

Internet Control Message Protocol . . . . . . 156

Network Time Protocol . . . . . . . . . . . 158

Simple Network Management Protocol. . . . .. . . 158

Syslog . . . . . . . . . . . . . . . . 159

NetFlow . . . . . . . . . . . . . . 159

Basic Switch Configuration . . . . . . . . . . 159

Basic Router Configuration . . . . . . . . . 160

Review Questions . . . . . . . .. . . . . . . 164

Answers to Review Questions . . . . . . . . . . . . . . . 166

What Next? . . . . . . . . . . . . . . . . . . . . 167

CHAPTER 5: Securing Your Cisco Devices . . . . .. . . . . . 169

Securing Routers and Switches . . . . . .. . . . . . . . . . 170

Configuring Password Security . . . . . . . .. . . . 170

Configuring SSH Access to Your Router . . . . . . . . . . 174

External Authentication Methods . . . . . . . . . . . . . 176

Switch Port Security . . . . . . . . . . .. . . . . . . . 178

Security Best Practices for Switches . . . . .. . . . . 178

Review Questions . . . . . . . . . . . . . . . . . . . . 184

Answers to Review Questions . . . . .. . . . . . . . . 186

What Next? . . . . . . . . . . . . . . . . . . . . . . . 187

CHAPTER 6: Basic Switch Operations and Configuration . . . . . . 189

Bridging and Switching . . . . . . . . . . .. . . . . . . . 190

Functions of Bridges and Switches . . . . . . . . . . 191

The Differences Between Switches and Bridges . . . . . . . 195

STP . . . . . . . . . . . . . . .. . . . . . 200

VLAN Concepts and Applications . . . . . . . . . . . . 204

The Definition of a VLAN . . . . . . . . . 206

Benefits of VLANs . . . . . . . .. . . . . . . . 206

Implementing VLANs . . . . . . . . . . 208

VLAN Membership . . . . . . . . . . . . 210

Trunking . . . . . . . . . . . . . . . . . . . . . 212

802.1Q . . . . . . . . . . . . . . . . . . 214

Configuring Switches for Trunking . . . . . . . . . . 215

Review Questions . . . . . . . . . . . . . . . . 219

Answers to Review Questions . . . . . . . . . . . . . 222

What Next? . . . . . . . . . . . . . . . . . 224

CHAPTER 7: Basic Routing . . . . . . 225

Routing Fundamentals . . . . . . . . . . . . . . 226

The Next Hop Concept . . . . . . . . . . 227

Connected Networks . . . . . . . . . . . . 228

Static Routes . . . . . . . . . . . . . . . 229

Default Routes . . . . . . . . . . . . . . 230

Dynamic Routes . . . . . . . . . . 232

Understanding the Router Lookup Process and the IP Route Table . . .. . 235

Inter-VLAN Routing . . . . . . . . . . 242

Router on a Stick . . . . . . . . . 243

L3 Switching . . . . . . . . . . . 245

OSPF . . . . . . . . . . . . . . . . . . . 248

Characteristics . . . . . .. . . . . . . . 249

Configuring Single-Area OSPFv2. . . . . . . . 254

Configuring Single-Area OSPFv3. . . . . . . . . . . 258

Verifying and Troubleshooting OSPF. . . . . . . . 260

Verification of OSPFv3 . . . . . . . . . . . 261

Review Questions . . . . . . . . . . .. . . . . . 265

Answers to Review Questions . . . .. . . . . . 269

CHAPTER 8: Visualizing Data Flow Between Two Hosts on a Network . . . 271

Host-to-Host Direct Communications . . . . . . . . . 272

Host to Host Through a Switch . . . . . . . . . . . 275

Host to Host Through a Router . . . . . . . . . . 278

Review Questions . . . . . . . . . . . . . . . . . . . 283

Answers to Review Questions . . . . . . . . . . . . . 286

What Next? . . . . . . . . . . . . . . 288

CHAPTER 9: IP Access Lists . . . . . . . 289

IP Access Lists as Packet Filters . . . . . . . . . . . . . 290

Types of ACLs . . . . . . . . . . . . . . . 293

Configuring and Implementing . . . . . . . . . . . . . . 296

Configuring Standard ACLs . . . . . . . . . . 297

Configuring Extended ACLs . . . . . . . . . . . 300

Filtering Telnet and SSH Access . . . . . . . . . . 302

Troubleshooting and Verifying ACL Configurations. . . . .. . . . 308

Review Questions . . . . . . . . . . . . . 311

Answers to Review Questions . . . . . . . . . . . . . 316

What Next? . . . . . . . . . . . . . . 318

CHAPTER 10: IP Services . . . . . 319

Network Address Translation . . .. . . . . . . . 320

NAT Terminology . . . . . . . . . . 321

Applications, Advantages, and Disadvantages of NAT . . . . . . . . . 323

Static NAT . . . . . . . . . . . . . . . . . . . 324

Dynamic NAT . . . . .. . . . . . . . . . . 326

PAT . . . . . . . . . . . . . . . . . 328

Verification and Troubleshooting NAT and PAT . . . . . 330

Network Time Protocol . . . . . . . . . . . 334

Configuring an IOS Router as an NTP Client . . . . . . . 335

Verification of NTP . . . . .. . . . . . . . 336

DHCP . . . . . . . . .. . . . . . . . . 338

Configuring an IOS Router as a DHCP Client . . . . . . 338

Configuring an IOS Router as a DHCP Server . . .. . . . 339

Verification of DHCP Operation . . . . . . . . 340

Review Questions . . . . . . .. . . . . . . . . . 343

Answers to Review Questions . . . . . . . . . . . . 345

CHAPTER 11: Troubleshooting . . . . 347

Troubleshoot Layer 1 Problems . . .. . . . . . . . . . . 348

Problems with the Wiring . . . . .. . . . . . . 348

Duplex . . . . . . . . . . . . . . . . . . 349

Finding the Errors . . . . . . .. . . . . . 349

Verify and Troubleshoot VLANs and Port Membership . . . .. . . . 353

Troubleshooting VLANs . . . . .. . . . . . 354

Verify Trunk Configuration and Operation . . . .. . . . . . 357

Is the Link Up and Configured? . . . . . . . . . . 357

VLANs Must Exist for the Trunk to Support Them . . . . . . 357

Administrative Versus Operational . . . . . . . . . 358

Troubleshoot Problems with IP Addressing and Host Configurations . . 361

Verify Hosts Have Correct IP Addresses . . . . . . . . . . 362

How to Remotely Change a Cisco IP Address . . . . . . . . 362

Making Sure That We Have a Default Gateway on Hosts . . . . . . 362

Troubleshooting NAT . . . . . . . .. . . . . . . . . 363

Troubleshoot ACL Issues . . . . . . . . . . . . 365

Review Questions . . . . . . . . . . . . . . . . . . . 368

Answers to Review Questions . . . . . . . . . . . . 375

Practice Exam 1 . . . . . . . . . . . . . . . . 377

Answer Key to Practice Exam 1 . . . . . . . . . . . . 413

Answers at a Glance to Practice Exam 1 . . . . . . . . . 413

Answers with Explanations . . . . . . . .. . . . . 413

Practice Exam 2 . . . . . . . . . . . . .. . . . . 423

Answer Key to Practice Exam 2 . . . . . . . . . . . . . . . 459

Answers at a Glance to Practice Exam 2 . . . . . . . . . . . 459

Answers with Explanations . . . . . . . . . . . . 460

Glossary . . . . . . . . . . . 469

Index . . . . . . . . . . . . . . . . . 487

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