CCNA Routing and Switching 200-125 Exam Cram, Fifth Edition, is the perfect study guide to help you pass the Cisco 200-125 CCNA exam, providing coverage and practice questions for every exam topic. The book contains an extensive set of preparation tools, including topic overviews, ExamAlerts, CramSavers, CramQuizzes, chapter-ending review questions, author notes and tips, and an extensive glossary. The book also contains the extremely useful CramSheet tear-out: a collection of essential facts in an easy-to-review format. Complementing all these great study tools is the powerful Pearson Test Prep practice test software, complete with hundreds of exam-realistic practice questions. This assessment software offers you a wealth of customization options and reporting features, allowing you to test your knowledge in study mode should be. Covers the critical information you’ll need to know to score higher on your CCNA exam!


Compare and contrast networking models including OSI and TCP/IP
Master subnetting in IPv4 u Understand important details of IPv6
Configure Layer 2 switches, including VLANs, trunks, STP, and Port Security
Deploy EtherChannel and switch stacking
Configure and verify Inter-VLAN routing
Configure, verify, and troubleshoot static and dynamic routing using OSPF, EIGRP, and RIPv2
Describe basic QoS concepts
Learn WAN topology and connectivity options and configure PPP, MLPPP, PPPoE, and GRE tunnel connectivity
Configure and verify single-homed branch connectivity using eBGP IPv4
Configure and verify key infrastructure services including DNS, DHCP, NTP, HSRP, and NAT
Configure Cisco device hardening and deploy access layer security, AAA, and ACLs
Learn how to manage Cisco infrastructure
Troubleshoot networks using key IOS tools
Understand network programmability concepts

Table of Contents


Introduction . . . . . . . . . . . xviii
Part I: Network Fundamentals 1
CHAPTER 1: Network Fundamentals: Models and Designs . . . . . . 3
Topic: Compare and contrast OSI and TCP/IP models . . . . 5
Topic: Compare and contrast TCP and UDP protocols . . . 11
Topic: Describe the impact of infrastructure components in an enterprise network . . . . . . . . . 15
Topic: Describe the effects of cloud resources on enterprise network architecture . . . . . . . . . . . 18
Topic: Compare and contrast collapsed core and three-tier architectures . . . . . . . . . . 22
Topic: Compare and contrast network topologies . . . . 25
Topic: Select the appropriate cabling type based on implementation requirements . . . . . . . . . . 28
Topic: Apply troubleshooting methodologies to resolve problems . . 31
Review Questions . . . . . . . . . . 33
Answers to Review Questions . . . . . . . . 35
Additional Resources . . . . . . . . . 36
CHAPTER 2: Network Fundamentals: IPv4 . . . . . . . . . 37
Topic: Configure, verify, and troubleshoot IPv4 addressing and subnetting . . . . . . . . . . . 38
Topic: Compare and contrast IPv4 address types . . . . 47
Topic: Describe the need for private IPv4 addressing . . . . 50
Review Questions . . . . . . . . . . 53
Answers to Review Questions . . . . . . . . 55
Additional Resources . . . . . . . . . 56
CHAPTER 3: Network Fundamentals: IPv6 . . . . . . . . . 57
Topic: Identify the appropriate IPv6 addressing scheme to satisfy addressing requirements in a LAN/WAN environment . . . 58
Topic: Configure, verify, and troubleshoot IPv6 addressing . . . 62
Topic: Configure and verify IPv6 Stateless Address Auto Configuration . . . . . . . . . 66
CCNA Routing and Switching 200-125 Exam Cram
Topic: Compare and contrast IPv6 address types . . . . 69
Review Questions . . . . . . . . . . 72
Answers to Review Questions . . . . . . . . 74
Additional Resources . . . . . . . . . 75
Part II: LAN Switching Technologies 77
CHAPTER 4: LAN Switching Technologies: Switching Concepts . . . . . 79
Topic: Describe and verify switching concepts . . . . . 80
Topic: Interpret Ethernet frame format . . . . . . 85
Topic: Troubleshoot interface and cable issues (collisions, errors, duplex, speed) . . . . . . . . . . 88
Review Questions . . . . . . . . . . 94
Answers to Review Questions . . . . . . . . 95
Additional Resources . . . . . . . . . 96
CHAPTER 5: LAN Switching Technologies: VLANs, Trunks, and STP . . . . 97
Topic: Configure, verify, and troubleshoot VLANs (normal range) spanning multiple switches . . . . . . . . 99
Topic: Configure, verify, and troubleshoot interswitch connectivity . 107
Topic: Configure, verify, and troubleshoot STP protocols . . . 111
Topic: Configure, verify, and troubleshoot STP-related optional features . . . . . . . . . . . 119
Topic: Configure and verify Layer 2 protocols . . . . . 122
Review Questions . . . . . . . . . . 125
Answers to Review Questions . . . . . . . . 126
Additional Resources . . . . . . . . . 127
CHAPTER 6: LAN Switching Technologies: EtherChannel and Switch Stacking . . 129
Topic: Configure, verify, and troubleshoot (Layer 2/Layer 3) EtherChannel . . . . . . . . . . 130
Topic: Describe the benefits of switch stacking and chassis aggregation . . . . . . . . . . . 137
Review Questions . . . . . . . . . . 139
Answers to Review Questions . . . . . . . . 140
Additional Resources . . . . . . . . . 141
Part III: Routing Technologies 143
CHAPTER 7: Routing Technologies: Routing Concepts . . . . . . 145
Topic: Describe the routing concepts . . . . . . 146
Topic: Interpret the components of routing table . . . . 148
Topic: Describe how a routing table is populated by different routing information sources . . . . . . . . 153
Review Questions . . . . . . . . . . 156
Answers to Review Questions . . . . . . . . 157
Additional Resources . . . . . . . . . 158
CHAPTER 8: Routing Technologies: Inter-VLAN Routing . . . . . . 159
Topic: Configure, verify, and troubleshoot inter-VLAN routing . . 160
Review Questions . . . . . . . . . . 171
Answers to Review Questions . . . . . . . . 172
Additional Resources . . . . . . . . . 173
CHAPTER 9: Routing Technologies: Routing Methods . . . . . . . 175
Topic: Compare and contrast static routing and dynamic routing . . 176
Topic: Compare and contrast distance vector and link state routing protocols . . . . . . . . . . 179
Topic: Compare and contrast interior and exterior routing protocols . 181
Review Questions . . . . . . . . . . 183
Answers to Review Questions . . . . . . . . 184
Additional Resources . . . . . . . . . 185
CHAPTER 10: Routing Technologies: Static Routing and Dynamic Routing . . . 187
Topic: Configure, verify, and troubleshoot IPv4 and IPv6 static routing . . . . . . . . . 189
Topic: Configure, verify, and troubleshoot single area and multi-area OSPFv2 for IPv4 (excluding authentication, filtering, manual summarization, redistribution, stub, virtual-link, and LSAs) . . 193
Topic: Configure, verify, and troubleshoot single area and multi-area OSPFv3 for IPv6 (excluding authentication, filtering, manual summarization, redistribution, stub, virtual-link, and LSAs) . . 199
Topic: Configure, verify, and troubleshoot EIGRP for IPv4 (excluding authentication, filtering, manual summarization, redistribution, and stub) . . . . . . . . 202
Topic: Configure, verify, and troubleshoot EIGRP for IPv6 (excluding authentication, filtering, manual summarization, redistribution, and stub) . . . . . . . . 205
Topic: Configure, verify, and troubleshoot RIPv2 for IPv4 (excluding authentication, filtering, manual summarization, and redistribution) . . . . . . . . . . 208
Topic: Troubleshoot basic Layer 3 end-to-end connectivity issues . 218
Review Questions . . . . . . . . . . 220
Answers to Review Questions . . . . . . . . 222
Additional Resources . . . . . . . . . 223
Part IV: WAN Technologies 225
CHAPTER 11: WAN Technologies: WAN Options . . . . . . . . 227
Topic: Configure and verify PPP and MLPPP on WAN interfaces using local authentication . . . . . . . . 228
Topic: Configure, verify, and troubleshoot PPPoE client-side interfaces using local authentication . . . . . . 232
Topic: Configure, verify, and troubleshoot GRE tunnel connectivity . 235
Topic: Describe WAN topology options . . . . . . 238
Topic: Describe WAN access connectivity options . . . . 240
Review Questions . . . . . . . . . . 242
Answers to Review Questions . . . . . . . . 243
Additional Resource . . . . . . . . . 244
CHAPTER 12: WAN Technologies: eBGP . . . . . . . . . 245
Topic: Configure and verify single-homed branch connectivity using eBGP IPv4 (limited to peering and route advertisement using Network command only) . . . . . . . 246
Review Questions . . . . . . . . . . 251
Answers to Review Questions . . . . . . . . 252
Additional Resource . . . . . . . . . 253
CHAPTER 13: WAN Technologies: QoS . . . . . . . . . 255
Topic: Describe basic QoS concepts . . . . . . . 256
Review Questions . . . . . . . . . . 259
Answers to Review Questions . . . . . . . . 260
Additional Resource . . . . . . . . . 261
Part V: Infrastructure Services 263
CHAPTER 14: Infrastructure Services: DNS, DHCP, NTP, HSRP . . . . . 265
Topic: Describe DNS lookup operation . . . . . . 267
Topic: Troubleshoot client connectivity issues involving DNS . . 270
Topic: Configure and verify DHCP on a router (excluding static reservations). . . . . . . . . . . 275
Topic: Troubleshoot client- and router-based DHCP connectivity issues . . . . . . . . . 280
Topic: Configure and verify NTP operating in client/server mode . 289
Topic: Configure, verify, and troubleshoot basic HSRP . . . 292
Review Questions . . . . . . . . . . 295
Answers to Review Questions . . . . . . . . 296
Additional Resources . . . . . . . . . 297
CHAPTER 15: Infrastructure Services: NAT . . . . . . . . . 299
Topic: Configure, verify, and troubleshoot inside source NAT . . 300
Review Questions . . . . . . . . . . 309
Answers to Review Questions . . . . . . . . 310
Additional Resource . . . . . . . . . 311
Part VI: Infrastructure Security 313
CHAPTER 16: Infrastructure Security: Access Layer Security, AAA . . . . 315
Topic: Configure, verify, and troubleshoot port security . . . 316
Topic: Describe common access layer threat mitigation techniques . 321
Topic: Describe device security using AAA with TACACS+ and RADIUS . . . . . . . . . . . 323
Review Questions . . . . . . . . . . 325
Answers to Review Questions . . . . . . . . 326
Additional Resources . . . . . . . . . 327
CHAPTER 17: Infrastructure Security: ACLs . . . . . . . . . 329
Topic: Configure, verify, and troubleshoot IPv4 standard numbered and named access list for routed interfaces . . . . . 330
Review Questions . . . . . . . . . . 344
Answers to Review Questions . . . . . . . . 345
Additional Resources . . . . . . . . . 346
CHAPTER 18: Infrastructure Security: Device Hardening . . . . . . 347
Topic: Configure, verify, and troubleshoot basic device hardening . . . . . . . . . . . 348
Review Questions . . . . . . . . . . 359
Answers to Review Questions . . . . . . . . 360
Additional Resources . . . . . . . . . 361
Part VII: Infrastructure Management 363
CHAPTER 19: Infrastructure Management: SNMP, Syslog, IP SLA . . . . . 365
Topic: Configure and verify device-monitoring using syslog and SNMP . . . . . . . . . . 366
Topic: Troubleshoot network connectivity issues using ICMP echo-based IP SLA . . . . . . . . 371
Review Questions . . . . . . . . . . 373
Answers to Review Questions . . . . . . . . 374
Additional Resources . . . . . . . . . 375
CHAPTER 20: Infrastructure Management: Device Management . . . . . 377
Topic: Configure and verify device management . . . . 378
Review Questions . . . . . . . . . . 384
Answers to Review Questions . . . . . . . . 385
Additional Resources . . . . . . . . . 386
CHAPTER 21: Infrastructure Management: Initial Device Configuration . . . . 387
Topic: Configure and verify initial device configuration. . . 388
Review Questions . . . . . . . . . . 395
Answers to Review Questions . . . . . . . . 396
Additional Resource . . . . . . . . . 397
CHAPTER 22: Infrastructure Management: Device Maintenance . . . . . 399
Topic: Perform device maintenance . . . . . . . 400
Review Questions . . . . . . . . . . 406
Answers to Review Questions . . . . . . . . 407
Additional Resources . . . . . . . . . 408
CHAPTER 23: Infrastructure Management: IOS Troubleshooting Tools . . . . 409
Topic: Use Cisco IOS tools to troubleshoot and resolve problems . 410
Review Questions . . . . . . . . . . 427
Answers to Review Questions . . . . . . . . 429
Additional Resources . . . . . . . . . 430
CHAPTER 24: Infrastructure Management: Network Programmability . . . . 431
Topic: Describe network programmability in enterprise network architecture . . . . . . . . . . . 432
Review Questions . . . . . . . . . . 435
Answers to Review Questions . . . . . . . . 436
Additional Resource . . . . . . . . . 437
Part VIII: Command Reference, Practice Exams, and Glossary 439
Command Reference . . . . . . . . . . 441
Practice Exam 1 . . . . . . . . . . . 453
Answer Key to Practice Exam 1 . . . . . . . . 469
Practice Exam 2 . . . . . . . . . . . 477
Answer Key to Practice Exam 2 . . . . . . . . 503
Glossary . . . . . . . . . . . . 511
978789756749, TOC, 1/20/2017