CCNA Routing and Switching 200-125 Exam Cram

Anthony Sequeira (CCIE No. 15626) began his IT career in 1994 with IBM in Tampa, Florida. He quickly formed his own computer consultancy, Computer Solutions, and then discovered his true passion–teaching and writing about Microsoft and Cisco technologies. Anthony has lectured to massive audiences around the world while working for Mastering Computers. Anthony has never been happier in his career than he is now as a full-time trainer for CBT Nuggets. He is an avid tennis player, a private pilot, a semiprofessional poker player, and enjoys getting beaten up by women and children at the martial arts school he attends with his daughter. Follow Anthony today on Twitter @compsolv or Facebook at facebook.com/compsolv.

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