Cisco ICND1 Exam ObjectivesInterconnecting Cisco Networking Devices Part 1 ICND1 Exam Number: 640-822 ICND1 Associated Certifications: CCENT and CCNA Duration: 90 Minutes 50-60 questions
Trang 2CCNA Second Edition
Jeremy Cioara, David Minutella, Heather Stevenson
Trang 3mitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without
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information contained herein Although every precaution has been taken in the preparation of this
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assumed for damages resulting from the use of the information contained herein.
ISBN-13: 978-0-7897-3713-7
ISBN-10: 0-7897-3713-2
Library of Congress Cataloging-in-Publication Data
Cioara, Jeremy.
CCNA exam prep : (exam 640-802) / Jeremy Cioara, David Minutella,
Heather Stevenson 2nd ed.
p cm.
ISBN 978-0-7897-3713-7 (pbk w/cd)
1 Electronic data processing personnel Certification 2 Computer
networks Examinations Study guides I Minutella, David II.
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Trang 4Cisco ICND1/ICND2/CCNA Exam Objectives xxxiii
Trang 5Answers to Practice Exam 901
Trang 6Introduction .1
How This Book Helps You 1
Network Hardware and Software Requirements 3
Advice on Taking the Exam .5
CHAPTER 1: Standard Internetworking Models .7
Introduction .10
What Is an Internetwork? 10
Types of Internetworks .11
Local Area Network (LAN) .11
Metropolitan Area Network (MAN) .12
Wide Area Network (WAN) .12
Storage Area Network (SAN) 14
Virtual Private Network (VPN) 14
Open Systems Interconnection (OSI) Model .14
Upper Layers .15
Application Layer 16
Presentation Layer 17
Session Layer .18
Lower Layers .18
Transport Layer .19
Network Layer .20
Data Link Layer 21
Physical Layer 23
OSI Layered Communications 24
TCP/IP Model 26
Application Layer 26
Transport Layer .27
Internet Layer 31
Network Interface Layer 33
Trang 7Cisco 3-Layer Hierarchical Model .33
Access Layer .34
Distribution Layer .35
Core Layer .35
Chapter Summary .37
Key Terms .38
Apply Your Knowledge .39
Exercise .39
Review Questions 40
Exam Questions .40
Answers to Review Questions 44
Answers to Exam Questions .47
Suggested Readings and Resources .48
CHAPTER 2: Physical Layer Networking Concepts 49
Introduction .52
Network Topologies .52
The Bus Topology .52
The Ring Topology .53
The Star Topology 54
The Mesh Topology .55
Cabling .56
Coaxial Cable .57
Twisted-Pair Cable 58
Fiber-Optic Cable .62
Wireless 62
Wireless Fidelity (Wi-Fi) .63
Infrared .64
Bluetooth 64
Physical Layer Devices .64
Repeaters .64
Hubs 65
Network Interfaces 65
Chapter Summary .66
Key Terms .66
Trang 8Apply Your Knowledge .66
Exercise .66
Review Questions 67
Exam Questions .67
Answers to Review Questions 73
Answers to Exam Questions .73
Suggested Readings and Resources .74
CHAPTER 3: Data Link Networking Concepts .75
Introduction .78
Data Link Protocols .78
Token Ring .78
FDDI .80
Ethernet at the Data Link Layer .81
Physical Ethernet Standards 87
Ethernet 87
Fast Ethernet .90
Gigabit Ethernet .91
10-Gigabit Ethernet (10GbE) .93
Long Reach Ethernet .93
Data Link Layer Devices .94
Bridges 95
Switches 98
Duplex .99
Microsegmentation .100
Chapter Summary .101
Key Terms 101
Apply Your Knowledge .102
Exercise .102
Review Questions 103
Exam Questions .103
Answers to Review Questions .107
Answers to Exam Questions .108
Suggested Readings and Resources .110
Trang 9CHAPTER 4:
General Network Security .111
Introduction .114
Classes of Attack .114
Access Attacks 115
Reconnaissance Attacks 117
Denial of Service (DoS) Attacks 119
Mitigating Network Threats .122
AAA .122
Cisco ACLs 123
Cisco IOS Secure Management Features .123
Encryption Protocols 124
Security Appliances and Applications .125
Chapter Summary .127
Key Terms 127
Apply Your Knowledge .128
Exercise .128
Review Questions 128
Exam Questions .129
Answers to Review Questions .131
Answers to Exam Questions .131
Suggested Readings and Resources .132
CHAPTER 5: IP at the Network Layer 133
Introduction .136
Network Layer Functions .136
IP Addressing and Formats .137
Binary 137
Hexadecimal .142
IP Address Classes .143
Subnet Masks .146
Private (RFC 1918) Addressing .148
Subnetting IP .149
Calculating Hosts in a Subnet .152
Calculating Networks in a Subnet 153
Trang 10The Increment .155
Determining the Range of Valid IPs .158
IPv6 .159
IPv6 Communications 160
IPv6 Address Format 160
Types of IPv6 Addresses .161
Autoconfiguration .164
Integrating IPv4 and IPv6 .164
ICMPv6 165
Network Layer Devices .165
Routers .165
Layer 3 Switches .168
Chapter Summary .169
Key Terms 169
Apply Your Knowledge .170
Exercises .170
Review Questions 173
Exam Questions .173
Answers to Review Questions .178
Answers to Exam Questions .180
Suggested Readings and Resources .182
CHAPTER 6 Introduction to Cisco Routers and Switches .183
Introduction .186
Interfaces and Modules .186
LAN Interfaces 186
WAN Interfaces .187
Cisco Memory Components .190
ROM .191
Flash 191
RAM .191
NVRAM .191
Cisco Internetworking Operating System .191
Feature Sets .192
IOS Image File Naming .193
Trang 11Cisco Router Models and Features .194
Cisco Switch Models and Features .195
Chapter Summary .197
Key Terms 197
Apply Your Knowledge .198
Exercise .198
Review Questions 198
Exam Questions .198
Answers to Review Questions .200
Answers to Exam Questions .201
Suggested Readings and Resources .203
CHAPTER 7: Foundation Cisco IOS Operations 205
Introduction .208
Terminal Options 208
Console Port 208
Auxiliary Port .210
Telnet 210
HTTP and HTTPS .210
SSH .211
Router/Switch Startup Procedures .212
POST 212
Bootstrap .213
IOS Loading .213
Configuration Loading .215
Navigating the IOS .219
User EXEC 219
Privileged EXEC .220
Global Configuration .221
Context-Sensitive Help 223
Abbreviations .224
Shortcut Keys .225
Common Syntax Errors .226
Chapter Summary .228
Key Terms 229
Trang 12Apply Your Knowledge .229
Exercise .229
Review Questions 231
Exam Questions .231
Answers to Review Questions .233
Answers to Exam Questions .234
Suggested Readings and Resources .235
CHAPTER 8: Foundation Cisco Configurations .237
Introduction .240
Global Configuration .240
Altering the Boot Sequence .240
Changing the Hostname 242
Creating a Login Banner .242
Assigning a Password for Privileged EXEC Mode .243
Domain Name–Specific Commands .244
Enabling SSH 245
Line Configurations .246
Securing Console Access to User EXEC .246
Securing Auxiliary Access to User EXEC .248
Securing Telnet and SSH Access to User EXEC .248
Router Interface Configurations .251
Assigning an IP Address .252
Enabling the Interface 253
LAN-Specific Commands 253
WAN-Specific Commands .254
Saving Configurations 254
Using the show Command to Get Information .256
Verifying Your Configurations .257
Viewing Interface Statuses and Statistics .258
IOS File Version show Commands .261
Troubleshooting Commands .264
Backing Up and Restoring Configurations and IOS Using TFTP .267
Neighbor Discovery with CDP .270
Using Telnet for Virtual Terminal Access .274
Terminal Monitor .275
Trang 13IOS DHCP 276
Chapter Summary .279
Key Terms 280
Apply Your Knowledge .281
Exercise .281
Review Questions 283
Exam Questions .283
Answers to Review Questions .287
Answers to Exam Questions .288
Suggested Readings and Resources .289
CHAPTER 9: Understanding the Cisco SDM .291
Introduction .294
Getting Started 294
Global Configurations .296
Changing the Hostname, Banner, Domain Name, and Secret Password .297
Router Access .301
DNS 302
DHCP .304
Router Interface Configurations .306
Assigning an IP Address .306
Enabling the Interface 307
Saving and Verifying Your Configurations 308
Monitoring .309
Chapter Summary .311
Key Terms 311
Apply Your Knowledge .311
Exercise .311
Review Questions 311
Exam Questions .312
Answers to Review Questions .314
Answers to Exam Questions .315
Suggested Readings and Resources .316
Trang 14CHAPTER 10:
Introduction to Routing and Routing Protocols .317
Introduction .320
The Default Gateway .320
Verifying and Troubleshooting the Default Gateway .322
Routing Sources 323
Administrative Distance .324
Static Routes 325
Configuring Static Routes .326
Floating Static Routes .327
Default Routes .328
Configuring Static and Default Routes with SDM 329
Verifying Static and Default Routes .330
Dynamic Routing Protocols 331
Routing Metrics .332
Classful and Classless Routing Updates .333
VLSM .336
Interior and Exterior Gateway Routing Protocols .339
Distance Vector Routing Protocols 340
Link-State Routing Protocols .340
Advanced Distance Vector/Hybrid Routing Protocols 341
The Routing Table Revisited .341
Routing Redistribution .343
Chapter Summary .345
Key Terms 346
Apply Your Knowledge .346
Exercises .346
Review Questions 347
Exam Questions .347
Answers to Review Questions .351
Answers to Exam Questions .351
Suggested Readings and Resources .353
CHAPTER 11: Distance Vector Routing Protocols 355
Introduction .358
Distance Vector Operations .358
Routing Loops .360
Trang 15Routing Loop Mitigation .362
Counting to Infinity .363
Split Horizon .363
Route Poison, Poison Reverse, and Hold-Down Timers .365
Triggered Updates .367
Invalid/Dead Timers .367
RIP 367
RIP Characteristics .367
RIP Configuration .368
Passive Interfaces .371
RIPv2 Characteristics .372
RIPv2 Configuration .373
RIPv2 Update Authentication .374
Configuring RIP with SDM 374
RIP Verification .375
Troubleshooting RIP 377
Chapter Summary .381
Key Terms 382
Apply Your Knowledge .382
Exercises .382
Review Questions 384
Exam Questions .384
Answers to Review Questions .388
Answers to Exam Questions .388
Suggested Readings and Resources .389
CHAPTER 12: Link-State and Hybrid Routing Protocols 391
Introduction .394
Link-State Operations 394
OSPF .396
OSPF Characteristics .396
OSPF Initialization .404
Introduction to Configuring OSPF 404
OSPF Network Configuration 407
Additional OSPF Commands 409
Trang 16Configuring OSPF with SDM 410
Verifying OSPF .412
Troubleshooting OSPF .415
Balanced Hybrid Operations .416
EIGRP 417
EIGRP Characteristics .417
EIGRP Stub Routing .421
EIGRP Configuration 422
EIGRP Verification .425
EIGRP Troubleshooting 427
Chapter Summary .428
Key Terms 429
Apply Your Knowledge .430
Exercises .430
Review Questions 431
Exam Questions .431
Answers to Review Questions .435
Answers to Exam Questions .436
Suggested Readings and Resources .437
CHAPTER 13: Foundation Switching Operations .439
Introduction .442
Switching Functionality .442
Frame Transmission Methods .443
Store-and-Forward .444
Cut-Through .444
Fragment-Free .444
Half- and Full-Duplex Connections .445
Switching Design 446
Spanning Tree Protocol .446
Root Bridge 447
Root Ports 448
Designated Ports .450
Blocked Ports .451
Port State Transitions .453
Trang 17Initial Switch Configurations .454
Assigning a Management IP Address to a Switch .455
Defining a Default Gateway 455
IP Assignment Using DHCP 456
Configuring Multiple Switch Interfaces .457
Configuring and Verifying Spanning Tree Protocol 458
Changing Priority and Port Cost .458
Verifying Spanning Tree Protocol 459
Troubleshooting Basic Switch Connectivity .460
Chapter Summary .462
Key Terms 462
Apply Your Knowledge .463
Exercises .463
Review Questions 466
Exam Questions .466
Answers to Review Questions .470
Answers to Exam Questions .470
Suggested Readings and Resources .471
CHAPTER 14: Enhanced Switching Operations 473
Introduction .476
Cisco Enhancements to Spanning Tree Protocol .476
PortFast and BPDU Guard .476
UplinkFast 477
BackboneFast .478
Configuring Cisco STP Enhancements .478
EtherChannel .479
Rapid Spanning Tree Protocol 481
Spanning Tree Similarities .481
RSTP Port States and Roles 482
RSTP Link and Edge Types 485
BPDUs and Topology Changes .485
Rapid Transition 486
Chapter Summary .491
Key Terms 491
Trang 18Apply Your Knowledge .492
Exercises .492
Review Questions 493
Exam Questions .493
Answers to Review Questions .496
Answers to Exam Questions .497
Suggested Readings and Resources .498
CHAPTER 15: Virtual LANs 499
Introduction .502
Overview of VLANs .502
VLAN Membership Methods .503
The Management VLAN .504
Configuring and Verifying VLANs 505
VLAN Trunking .506
ISL Trunks .508
802.1q Trunks 508
Configuring and Verifying ISL and 802.1Q Trunks 509
VLAN Trunking Protocol .511
VTP Modes .511
VTP Pruning .514
Configuring and Verifying VTP .514
InterVLAN Routing .517
Router on a Stick .517
Switched Virtual Interfaces 519
Voice VLANs .520
Troubleshooting VLAN .522
Chapter Summary .524
Key Terms 525
Apply Your Knowledge .526
Exercises .526
Review Questions 527
Exam Questions .528
Answers to Review Questions .531
Answers to Exam Questions .531
Suggested Readings and Resources .532
Trang 19CHAPTER 16:
Implementing Switch Security .533
Introduction .536
Securing Physical Access to the Catalyst Switch 536
Securing Terminal Access to the Catalyst Switch .536
To Telnet or Not to Telnet 538
Additional IOS Security Practices .539
Layer 2 Security 540
Port Security 540
VLAN Security .543
VTP Passwords .546
“See”DP .546
Chapter Summary .547
Key Terms 547
Apply Your Knowledge .548
Exercises .548
Review Questions 550
Exam Questions .550
Answers to Review Questions .554
Answers to Exam Questions .554
Suggested Readings and Resources .556
CHAPTER 17: Understanding Wireless Networking .557
Introduction .560
The Business Case .560
The Players in the 802.11 Market 561
Entering the Radio Frequency World .562
Understanding Wireless Transmission .562
Unlicensed RF Bands .563
The Key to Successful Wireless: Channel Surfing .564
The 802.11 Standards Family .567
Party Like It’s 1999: 802.11a and 802.11b .567
2003 Delivers: 802.11g .567
The Next Generation: 802.11n .568
Chapter Summary .569
Key Terms 569
Trang 20Apply Your Knowledge .570
Exercise .570
Review Questions 571
Exam Questions .571
Answers to Review Questions .573
Answers to Exam Questions .574
Suggested Readings and Resources .575
CHAPTER 18: Wireless Security and Implementation Considerations .577
Introduction .580
Understanding the Threats .580
War Driving .580
Direct Hacking 581
Employee Ignorance .581
Deploying a Secure Wireless Network 582
Wireless Encryption .582
Wireless Authentication (802.1x) 585
Wireless Intrusion Prevention System (IPS) .586
Wireless Implementation Guidelines .587
Understanding Wireless Topologies .587
Understanding Wireless Data Rates .590
General Wireless Implementation Steps .592
Wireless Troubleshooting 592
Chapter Summary .594
Key Terms 594
Apply Your Knowledge .595
Review Questions 595
Exam Questions .595
Answers to Review Questions .597
Answers to Exam Questions .598
Suggested Readings and Resources .599
CHAPTER 19: Using Cisco Access Lists .601
Introduction .604
Access List Concepts 604
Trang 21Functions of an Access List .607
Packet Filtering .607
Quality of Service 608
Dial-on-Demand Routing .608
Network Address Translation 609
Route Filtering .609
Standard Access Lists .610
Configuration of Standard Access Lists .610
Placement of Standard Access Lists 614
Standard Access List Examples .616
Extended Access Lists .620
Configuration of Extended Access Lists 620
Practical Extended Access List Examples .626
Named Access List 632
Verifying Access Lists .634
show running-config .634
show ip interface .635
show ip access-lists 636
Chapter Summary .637
Key Terms 637
Apply Your Knowledge .638
Exercises .638
Review Questions 643
Exam Questions .644
Answers to Review Questions .646
Answers to Exam Questions .646
Suggested Reading and Resources 647
CHAPTER 20: Enabling Internet Connectivity with NAT .649
Introduction .652
NAT Concepts .653
Static NAT .654
Dynamic NAT .655
NAT Overload and Port Address Translation .656
NAT Terminology .657
Trang 22Configuring NAT Using Cisco SDM 659Configuring NAT Overload 659Verifying NAT Configuration .672Troubleshooting NAT 675Chapter Summary .677Key Terms 677Apply Your Knowledge .678Review Questions 678Exam Questions .678Answers to Review Questions .681Answers to Exam Questions .681Suggested Reading and Resources 682
CHAPTER 21:
Command-Line NAT Implementation .683
Introduction .686Reviewing NAT Concepts .686NAT Configurations .689Static NAT .689Dynamic Pool Translations .695NAT Overload .699Verifying NAT Operation .704Troubleshooting NAT Operation .705Chapter Summary .708Key Terms 708Apply Your Knowledge .709Exercise .709Exam Questions .712Answers to Exam Questions .714Suggested Readings and Resources .715
CHAPTER 22:
Wide Area Network Connections .717
Introduction .720WAN Connection Types .720Leased Lines .721Circuit-Switched Networks .721
Trang 23Packet-Switched Networks 722Broadband 722Virtual Private Networks (VPNs) .723Metropolitan Ethernet (Metro Ethernet) 723The WAN Physical Layer .724WAN Data Link Encapsulations .725Serial Line Internet Protocol (SLIP) .725Point-to-Point Protocol (PPP) .726Cisco High-Level Data Link Control (HDLC) .726X.25 Link Access Procedure, Balanced (LAPB) .726Frame Relay .726Asynchronous Transfer Mode (ATM) .726PPP over Ethernet (PPPoE) and PPP over ATM (PPPoA) .727Cisco HDLC .727PPP .727Sub-Layer 1: ISO HDLC 729Sub-Layer 2: Link Control Protocol (LCP) .729Sub-Layer 3: Network Control Protocol .733Configuring PPP .734Authentication .734Compression 736Verifying PPP 737Troubleshooting PPP .738Chapter Summary .741Key Terms 741Apply Your Knowledge .742Exercises .742Review Questions 745Exam Questions .745Answers to Review Questions .747Answers to Exam Questions .748Suggested Reading and Resources 749
CHAPTER 23:
Frame Relay 751
Introduction .754Frame Relay Overview .754
Trang 24Virtual Circuits 755Hub and Spoke Design .756Partial Mesh Design .757Full Mesh Design 757Frame Relay Terminology .758Permanent Virtual Circuit .758Switched Virtual Circuit .758Local Management Interface .759Data Link Connection Identifier 759Local Access Rate 760Committed Information Rate 760Backwards Explicit Congestion Notification .761Forward Explicit Congestion Notification 762Discard Eligible .762The Nature of NBMA Networks .763Subinterfaces 764Multipoint Subinterfaces 764Point-to-Point Subinterfaces .765Address Mapping in Frame Relay .765Inverse ARP .765Static Mappings .766Configuring Frame Relay .766Configuring Frame Relay for a Single Neighbor .767Configuring Frame Relay That Uses a Multipoint Interface .773Configuring Frame Relay That Uses Point-to-Point Interfaces 780Verifying Frame Relay .785show frame-relay lmi .785show frame-relay pvc 785show frame-relay map .786Troubleshooting Frame Relay .786Chapter Summary .790Key Terms 791Apply Your Knowledge .792Exercises .792Review Questions 799Exam Questions .799
Trang 25Answers to Review Questions .802Answers to Exam Questions .803Suggested Reading and Resources 804
CHAPTER 24:
Understanding VPN Connectivity .805
Introduction .808Understanding VPN Connectivity .808VPN Benefits and Considerations 809Types of VPNs .810The Pieces That Make a VPN Tick .814Understanding IPsec .815Encryption .816Diffie-Hellman 818Secure Socket Layer (SSL) .819Authentication/Data Integrity .820IPsec Protocols 821Chapter Summary .823Key Terms 823Apply Your Knowledge .824Review Questions 824Exam Questions .824Answers to Review Questions .826Answers to Exam Questions .827Suggested Readings and Resources .828
Fast Facts 829
OSI Model in Review .829Application Protocols Supported by the Application Layer .830Network Domains .832Cabling, Lines, and Services .833MAC Addressing .834Framing and Duplex Types .835WAN Interfaces .835Memory Types .836IOS File Naming Conventions .836Utilities Using ICMP .837
Trang 26Network Security 837Access Attacks 837Reconnaissance Attacks 838Denial of Service (DoS) Attacks 838Mitigating Network Threats .838
IP Addressing .838Classless Addressing .840Private Ranges .840Subnetting 840IPv6 .841Types of IPv6 Addresses .842Integrating IPv4 and IPv6 .842Layer 3 Functions .842IOS Terminal Access Methodologies .843IOS Boot Processes .843IOS Navigation .844Context-Sensitive Help 844Terminal Editing Keys .844Syntax Errors .845Global Configuration Commands 845Securing the IOS .845SSH .846Interface Configuration Commands .847Switch Commands 847The copy Command .847The show Command 848Interface Status 848Cisco Discovery Protocol .849Telnet 849DHCP .850Switches 850Duplex Connections .851Spanning Tree Protocol IEEE 802.1d .851Rapid Spanning Tree Protocol 853RSTP Convergence 854
Trang 27Virtual LANs (VLANs) 854VLAN Configuration .854Voice VLANs .855Trunks .855Trunk Configuration .855VLAN Trunking Protocol .855VTP Configuration .856InterVLAN Routing .856Port Security 857Routing Characteristics 857Routing Sources .857Static and Default Routes .858Dynamic Routing Protocols 858Routing Metrics .859Interior and Exterior Gateway Routing Protocols .859Classful and Classless Routing Updates .859Routing Protocol Classes .860Redistribution 860Distance Vector Routing Loop Mitigation .860RIP and RIPv2 .861RIP Configuration .862Verifying and Troubleshooting RIP .862OSPF Characteristics .862OSPF Configuration .864Verifying and Troubleshooting OSPF .865EIGRP Characteristics .865EIGRP Configuration 866Verifying and Troubleshooting EIGRP .866Passive Interfaces .866Wireless Networking .867Wireless Security and Implementation 867Cisco Access Lists .869TCP Ports 871UDP Ports .871
Trang 28Network Address Translation (NAT) .872Wide-Area Networks .874Frame Relay .876VPN Connectivity 879
Practice Exam .881 Answers to Practice Exam .901
Answers at a Glance 901Answers with Explanations .902
APPENDIX
What’s on the CD-ROM .911
Multiple Test Modes .911Study Mode 911Certification Mode .911Custom Mode 911Attention to Exam Objectives .912Installing the CD .912Creating a Shortcut to the MeasureUp Practice Tests .913Technical Support .913
Glossary .915 Index 943
Trang 30Jeremy Cioara(CCIE, CCVP, CCSP) works in many facets of the Cisco networking realm As
an author, he has written multiple books for Cisco Press and Exam Cram As an instructor, heteaches at Interface Technical Training (www.interfacett.com) in Phoenix, Arizona Likewise,Jeremy has recorded many E-Learning titles at CBTNuggets (www.cbtnuggets.com) Finally,Jeremy is the CIO of AdTEC Networks and works as a network consultant focusing on Cisconetwork and Voice over IP (VoIP) implementations What’s more? Jeremy also runs the CiscoBlog (www.ciscoblog.com) in his “free time.” Thankfully, he is married to the Certified BestWife in the World (CBWW) who helps him manage his time and priorities and prevents himfrom getting an enormous Cisco-logo tattooed across his chest
Dave Minutella (CCNP, CCDP, INFOSEC, CISSP, CTP, MCSA, MCDST, Security+,Network+, A+) has been working in the IT and telecom industry for over 14 years He cur-rently serves as Vice President of Educational Services for Training Camp Before that, he wasthe lead Cisco instructor, primarily teaching CCNA, CCDA, and CCNP courses Dave is also
the technical author of CSVPN Exam Cram 2 from Que Publishing and is the present Cisco
certifications expert for SearchNetworking.com’s Ask the Networking Expert panel
Heather Stevenson(CCNP) has over 7 years of experience in the IT industry and is currently
a senior network engineer at a global manufacturing company She has written a number oftechnical training guides and mentored fellow IT professionals throughout her career Whenshe is not working, Heather still loves spending time with her network of friends and family
Trang 31From Jeremy: I’d like to dedicate this book to my newest daughter, Isabella She’s currently six
months old and is staring at me right now from a soft blanket on the floor By the time she’s old enough to read this, this book will probably be outdated as we will all have Ethernet ports implanted
in our skull (I’m opting for a wireless connection, myself) Hopefully, if we remember to pull this book off the shelf and read this dedication I can tell her what amazing joy she has brought me This tiny, arm flailing, cooing, cheesy-grinning, soft, delicate, playful, yet scandalously sly, giggling little girl has become my addiction I hope I can always help her know how incredibly special she is to me.
From Dave: This book is dedicated to my soon-to-be daughter, Chloe By the time this book is
print-ed, you will be born and your exquisite mother and I can have longwinded debates about which event was more distressing I very well may have written books about Cisco technology and whatnot, but as
for incredible blessings, it’s you who wrote the book.
From Heather: I would like to dedicate this book to anyone and everyone who has ever helped me in
my pursuit to learn I have been fortunate enough to have many wonderful teachers in my life Not just school teachers, but family and friends who have given me their hand along the way.
Trang 32From Jeremy: My number one acknowledgment always goes to God who has blessed me in
more ways than I even realize Thank you for granting me the talent to be successful in therealm of Cisco networking Please allow me to use these talents to accomplish more for Yourkingdom than an Ethernet cable ever could Thanks to my darling wife, Susan You are myeyes and ears that help me to see what is REALLY going on around me I love you! And last,but not least: Thank you fish swimming in the big fish tank next to me You bring me muchpeace and serenity as I sit here typing these acknowledgments Especially the big yellowButterfly fish that swims this way and that Swish, swish, swish Swish, swish
From Dave: As always, I would like to put to paper yet again my undying gratitude and love
to my wife, Marsha Your beautiful spirit outshines the sun even on the brightest of days I alsowould like to thank my family and family-in-laws for your unwavering support I especiallywant to honor my mother-in-law, Pattie, who touched so many throughout her life Wordscannot fill the sorrow in our hearts, but your memories and spirit give us strength We willmiss you
From Heather: I would like to send out a huge hug and thank you to my parents and my
Dustin Dustin has been by my side for as long as I have been working in this industry He eventook me to my junior prom many, many years ago His support is immeasurable I am so lucky
to have amazing people around me to keep me sane Finally, DYB Bear and Grumpy Nigel alsodeserve a special hello Hello!
Trang 33As the reader of this book, you are our most important critic and commentator We value your
opinion and want to know what we’re doing right, what we could do better, what areas you’dlike to see us publish in, and any other words of wisdom you’re willing to pass our way
As an associate publisher for Que Publishing, I welcome your comments You can email orwrite me directly to let me know what you did or didn’t like about this book—as well as what
we can do to make our books better
Please note that I cannot help you with technical problems related to the topic of this book We do have
a User Services group, however, where I will forward specific technical questions related to the book.
When you write, please be sure to include this book’s title and author as well as your name,email address, and phone number I will carefully review your comments and share them withthe author and editors who worked on the book
Trang 34Cisco ICND1 Exam Objectives
Interconnecting Cisco Networking Devices Part 1 (ICND1)
Exam Number: 640-822 ICND1 Associated Certifications: CCENT and CCNA Duration: 90 Minutes (50-60 questions)
Exam Description
The 640-822 Interconnecting Cisco Networking Devices Part 1 (ICND1) is the exam associated with the Cisco Certified Entry Network Technician (CCENT) certification and a tangible first step in achieving the Cisco Certified Network Associate certification Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices Part 1 (ICND1) v1.0 course This exam tests a candidate’s knowledge and skills required to successfully install, operate, and troubleshoot a small branch office network The exam includes topics on net- working fundamentals; connecting to a WAN; basic security and wireless concepts; routing and switching funda- mentals; the TCP/IP and OSI models; IP addressing; WAN technologies; operating and configuring IOS devices; configuring RIPv2, static and default routing; implementing NAT and DHCP; and configuring simple networks.
Exam Topics
The following topics are general guidelines for the content likely to be included on the Interconnecting Cisco Networking Devices Part 1 exam However, other related topics may also appear on any specific delivery of the exam In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.
Describe the operation of data networks
Describe the purpose and functions of various
network devices
Select the components required to meet a given
network specification
Use the OSI and TCP/IP models and their
asso-ciated protocols to explain how data flows in a
network
Describe common networking applications
including web applications
Describe the purpose and basic operation of the
protocols in the OSI and TCP models
Describe the impact of applications (Voice Over
IP and Video Over IP) on a network
Interpret network diagrams
Determine the path between two hosts across a
network
Describe the components required for network
and Internet communications
Identify and correct common network problems
at layers 1, 2, 3 and 7 using a layered model
approach
Differentiate between LAN/WAN operation and
features
Implement a small switched network
Select the appropriate media, cables, ports, and connectors to connect switches to other net- work devices and hosts
Explain the technology and media access trol method for Ethernet technologies Explain network segmentation and basic traffic management concepts
con- Explain the operation of Cisco switches and basic switching concepts
Perform, save, and verify initial switch configuration tasks including remote access management
Verify network status and switch operation using basic utilities (including: ping, traceroute, telnet, SSH, arp, ipconfig), SHOW & DEBUG commands
Implement and verify basic security for a switch (port security, deactivate ports)
Identify, prescribe, and resolve common switched network media issues, configuration issues, autonegotiation, and switch hardware failures
Continues on Following Page
Trang 35services to meet network requirements for a
small branch office
Describe the need and role of addressing in a
network
Create and apply an addressing scheme to a
network
Assign and verify valid IP addresses to hosts,
servers, and networking devices in a LAN
environment
Explain the basic uses and operation of NAT in a
small network connecting to one ISP
Describe and verify DNS operation
Describe the operation and benefits of using
pri-vate and public IP addressing
Enable NAT for a small network with a single
ISP and connection using SDM and verify
oper-ation using CLI and ping
Configure, verify, and troubleshoot DHCP and
DNS operation on a router.(including: CLI/SDM)
Implement static and dynamic addressing
serv-ices for hosts in a LAN environment
Identify and correct IP addressing issues
Implement a small routed network
Describe basic routing concepts (including:
packet forwarding, router lookup process)
Describe the operation of Cisco routers
(includ-ing: router bootup process, POST, router
components)
Select the appropriate media, cables, ports, and
connectors to connect routers to other network
devices and hosts
Configure, verify, and troubleshoot RIPv2
Access and utilize the router CLI to set basic
parameters
Connect, configure, and verify operation status
of a device interface
Verify device configuration and network
connec-tivity using ping, traceroute, telnet, SSH, or
Explain and select the appropriate trative tasks required for a WLAN
adminis- Describe standards associated with wireless media (including: IEEE WI-FI Alliance, ITU/FCC) Identify and describe the purpose of the compo- nents in a small wireless network (including: SSID, BSS, ESS)
Identify the basic parameters to configure on a wireless network to ensure that devices connect
to the correct access point Compare and contrast wireless security features and capabilities of WPA security (including: open, WEP, WPA-1/2)
Identify common issues with implementing wireless networks
Identify security threats to a network and describe general methods to mitigate those threats
Explain today’s increasing network security threats and the need to implement a compre- hensive security policy to mitigate the threats Explain general methods to mitigate common security threats to network devices, hosts, and applications
Describe the functions of common security appliances and applications
Describe security recommended practices including initial steps to secure network devices
Implement and verify WAN links
Describe different methods for connecting to a WAN
Configure and verify a basic WAN serial connection
Trang 36Exam Number: 640-816 ICND2 Associated Certifications: CCNA Duration: 75 minutes (45-55 questions)
Exam Description
The 640-816 Interconnecting Cisco Networking Devices Part 2 (ICND2) is the exam associated with the Cisco Certified Network Associate certification Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices Part 2 (ICND2) v1.0 course This exam tests a candidate’s knowledge and skills required to successfully install, operate, and troubleshoot a small to medium size enterprise branch network The exam cov- ers topics on VLSM and IPv6 addressing; extending switched networks with VLANs; configuring, verifying and troubleshooting VLANs; the VTP, RSTP, OSPF and EIGRP protocols; determining IP routes; managing IP traffic with access lists; NAT and DHCP; establishing point-to-point connections; and establishing Frame Relay connections.
Exam Topics
The following topics are general guidelines for the content likely to be included on the Interconnecting Cisco Networking Devices Part 2 exam However, other related topics may also appear on any specific delivery of the exam In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.
Continues on Following Page
Configure, verify and troubleshoot a switch
with VLANs and interswitch communications
Describe enhanced switching technologies
(including: VTP, RSTP, VLAN, PVSTP, 802.1q)
Describe how VLANs create logically separate
networks and the need for routing between them
Configure, verify, and troubleshoot VLANs
Configure, verify, and troubleshoot trunking on
Cisco switches
Configure, verify, and troubleshoot interVLAN
routing
Configure, verify, and troubleshoot VTP
Configure, verify, and troubleshoot RSTP
operation
Interpret the output of various show and debug
commands to verify the operational status of a
Cisco switched network
Implement basic switch security (including: port
security, unassigned ports, trunk access, etc.)
Implement an IP addressing scheme and IP
Services to meet network requirements in a
medium-size Enterprise branch office network
Calculate and apply a VLSM IP addressing
design to a network
Determine the appropriate classless addressing
scheme using VLSM and summarization to
sat-isfy addressing requirements in a LAN/WAN
environment
Describe the technological requirements for running IPv6 (including: protocols, dual stack, tunneling, etc)
Describe IPv6 addresses Identify and correct common problems associ- ated with IP addressing and host configurations
Configure and troubleshoot basic operation and routing on Cisco devices
Compare and contrast methods of routing and routing protocols
Configure, verify and troubleshoot OSPF Configure, verify and troubleshoot EIGRP Verify configuration and connectivity using ping, traceroute, and telnet or SSH
Troubleshoot routing implementation issues Verify router hardware and software operation using SHOW & DEBUG commands
Implement basic router security
Implement, verify, and troubleshoot NAT and ACLs in a medium-size Enterprise branch office network
Describe the purpose and types of access control lists
Configure and apply access control lists based
on network filtering requirements
Trang 37Describe how a network works
Describe the purpose and functions of various
network devices
Select the components required to meet a
net-work specification
Use the OSI and TCP/IP models and their
asso-ciated protocols to explain how data flows in a
network
Describe common networked applications
including web applications
Describe the purpose and basic operation of the
protocols in the OSI and TCP models
Describe the impact of applications (Voice Over
IP and Video Over IP) on a network
Interpret network diagrams
limit telnet and SSH access to the router
Verify and monitor ACL’s in a network
environment
Troubleshoot ACL implementation issues
Explain the basic operation of NAT
Configure Network Address Translation for
given network requirements using CLI
Troubleshoot NAT implementation issues
Configure and verify Frame Relay on Cisco routers
Troubleshoot WAN implementation issues Describe VPN technology (including: impor- tance, benefits, role, impact, components) Configure and very PPP connection between Cisco routers
Cisco CCNA Exam Objectives
Cisco Certified Network Associate (CCNA) Exam Number: 640-802 CCNA Associated Certifications: CCNA Duration: 90 Minutes (50-60 questions)
Exam Description
The 640-802 Cisco Certified Network Associate (CCNA) is the composite exam associated with the Cisco Certified Network Associate certification Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices Part 1 (ICND1) v1.0 and the Interconnecting Cisco Networking Devices Part 2 (ICND2) v1.0 courses This exam tests a candidate’s knowledge and skills required to install, operate, and trou- bleshoot a small to medium size enterprise branch network The topics include connecting to a WAN; imple- menting network security; network types; network media; routing and switching fundamentals; the TCP/IP and OSI models; IP addressing; WAN technologies; operating and configuring IOS devices; extending switched net- works with VLANs; determining IP routes; managing IP traffic with access lists; establishing point-to-point con- nections; and establishing Frame Relay connections.
Exam Topics
The following topics are general guidelines for the content likely to be included on the Cisco Certified Network Associate exam However, other related topics may also appear on any specific delivery of the exam In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.
Determine the path between two hosts across a network
Describe the components required for network and Internet communications
Identify and correct common network problems
at layers 1, 2, 3 and 7 using a layered model approach
Differentiate between LAN/WAN operation and features
Configure, verify and troubleshoot a switch with VLANs and interswitch communications
Select the appropriate media, cables, ports, and connectors to connect switches to other net- work devices and hosts
Trang 38Explain network segmentation and basic traffic
management concepts
Explain basic switching concepts and the
opera-tion of Cisco switches
Perform and verify initial switch configuration
tasks including remote access management
Verify network status and switch operation
using basic utilities (including: ping, traceroute,
telnet, SSH, arp, ipconfig), SHOW & DEBUG
commands
Identify, prescribe, and resolve common
switched network media issues, configuration
issues, auto negotiation, and switch hardware
failures
Describe enhanced switching technologies
(including: VTP, RSTP, VLAN, PVSTP, 802.1q)
Describe how VLANs create logically separate
networks and the need for routing between
them
Configure, verify, and troubleshoot VLANs
Configure, verify, and troubleshoot trunking on
Cisco switches
Configure, verify, and troubleshoot interVLAN
routing
Configure, verify, and troubleshoot VTP
Configure, verify, and troubleshoot RSTP
operation
Interpret the output of various show and debug
commands to verify the operational status of a
Cisco switched network.
Implement basic switch security (including: port
security, trunk access, management vlan other
than vlan1, etc.)
Implement an IP addressing scheme and IP
Services to meet network requirements in
a medium-size Enterprise branch office
network
Describe the operation and benefits of using
pri-vate and public IP addressing
Explain the operation and benefits of using
DHCP and DNS
Configure, verify and troubleshoot DHCP and
DNS operation on a router.(including: CLI/SDM)
Implement static and dynamic addressing
serv-ices for hosts in a LAN environment
Calculate and apply an addressing scheme
including VLSM IP addressing design to a
network
environment Describe the technological requirements for running IPv6 in conjunction with IPv4 (includ- ing: protocols, dual stack, tunneling, etc) Describe IPv6 addresses
Identify and correct common problems ated with IP addressing and host configurations
associ-Configure, verify, and troubleshoot basic router operation and routing on Cisco devices
Describe basic routing concepts (including: packet forwarding, router lookup process) Describe the operation of Cisco routers (includ- ing: router bootup process, POST, router components)
Select the appropriate media, cables, ports, and connectors to connect routers to other network devices and hosts
Configure, verify, and troubleshoot RIPv2 Access and utilize the router to set basic param- eters.(including: CLI/SDM)
Connect, configure, and verify operation status
of a device interface Verify device configuration and network connec- tivity using ping, traceroute, telnet, SSH or other utilities
Perform and verify routing configuration tasks for a static or default route given specific rout- ing requirements
Manage IOS configuration files (including: save, edit, upgrade, restore)
Manage Cisco IOS Compare and contrast methods of routing and routing protocols
Configure, verify, and troubleshoot OSPF Configure, verify, and troubleshoot EIGRP Verify network connectivity (including: using ping, traceroute, and telnet or SSH) Troubleshoot routing issues Verify router hardware and software operation using SHOW & DEBUG commands.
Implement basic router security
Explain and select the appropriate trative tasks required for a WLAN
adminis- Describe standards associated with wireless media (including: IEEE WI-FI Alliance, ITU/FCC)
Continues on Following Page
Trang 39nents in a small wireless network (Including:
SSID, BSS, ESS)
Identify the basic parameters to configure on a
wireless network to ensure that devices connect
to the correct access point
Compare and contrast wireless security features
and capabilities of WPA security (including:
open, WEP, WPA-1/2)
Identify common issues with implementing
wireless networks (Including: Interface,
miss-configuration)
Identify security threats to a network and
describe general methods to mitigate those
threats
Describe today’s increasing network security
threats and explain the need to implement a
comprehensive security policy to mitigate the
threats
Explain general methods to mitigate common
security threats to network devices, hosts, and
applications
Describe the functions of common security
appliances and applications
Describe security recommended practices
including initial steps to secure network devices
ACLs in a medium-size Enterprise branch office network
Describe the purpose and types of ACLs Configure and apply ACLs based on network fil- tering requirements.(including: CLI/SDM) Configure and apply an ACLs to limit telnet and SSH access to the router using (including: SDM/CLI)
Verify and monitor ACLs in a network environment
.Troubleshoot ACL issues Explain the basic operation of NAT Configure NAT for given network requirements using (including: CLI/SDM)
.Troubleshoot NAT issues
Implement and verify WAN links
Describe different methods for connecting to a WAN
Configure and verify a basic WAN serial connection
Configure and verify Frame Relay on Cisco routers
Troubleshoot WAN implementation issues Describe VPN technology (including: impor- tance, benefits, role, impact, components) Configure and verify a PPP connection between Cisco routers
Trang 40The Cisco Certified Network Associate (CCNA) accreditation has become the leading ductory-level network certification available today The CCNA certification is recognized byemployers as providing candidates with a solid foundation of Cisco networking concepts, ter-minology, and skills The CCNA exam covers a broad range of networking concepts to preparecandidates for the technologies they are likely to work with in today’s network environments.This book is your one-stop shop Everything you need to know to pass the exam is in here.You do not have to take a class in addition to buying this book to pass the exam However,depending on your personal study habits or learning style, you might benefit from buying this
intro-book and taking a class Taking a CCNA certification class gives you dedicated study time and
precious hands-on experience with live Cisco equipment
Exam Preps are meticulously crafted to give you the best possible learning experience for the
particular characteristics of the technology covered and the actual certification exam The
instructional design implemented in the Exam Preps reflects the task- and experience-based nature of Cisco certification exams The Exam Preps provide the factual knowledge base you
need for the exams and then take it to the next level, with exercises and exam questions thatare required in the CCNA certification
Cisco has split the single CCNA test into two separate exams, ICND1 and ICND2 Althoughthe single CCNA exam still remains, Cisco recommends that only those who are recertifying
an existing CCNA certification take this exam This CCNA Exam Prep title prepares you for
both the ICND1 exam, which covers the foundational Cisco network concepts andconfigurations, and the ICND2 exam, which covers the more advanced network concepts andconfigurations Personally, we recommend that you follow Cisco’s advice on taking the two-exam path rather than the single CCNA exam Although it may be tempting to go after theone-test “fast-track,” this single exam is extremely difficult and has discouraged many poten-tial CCNA candidates from continuing on their Cisco certification journey
How This Book Helps You
This book takes you on a self-guided tour of all the areas covered by the CCNA exam andteaches you the specific skills you need to achieve your certification This book also containshelpful hints, tips, real-world examples, and exercises, as well as references to additional studymaterials Specifically, this book is set up to help you in the following ways: