CompTIA Network+ N10-004 Exam Prep, Third Edition

✍ Scribed by Safari, an O'Reilly Media Company.; Harwood, Mike

• Publisher: Exam Cram; Pearson IT Certification
• Year: 2009
• Tongue: English
• Leaves: 896
• Edition: 3rd edition
• Category: Library

✦ Synopsis

Your Complete Certification Solution Covers the critical information you need to know to score higher on your Network+ exam:
Implement proven best practices for managing networks efficiently and reliably
Thoroughly understand network hardware components, devices, cabling, and connectors
Systematically review TCP/IP, related network protocols, and the OSI model
Manage network operating systems and clients
Identify network vulnerabilities and configure network security to address them
Use security tools such as cryptography and antivirus software
Provide reliable, secure Internet access, WAN access, and VLAN support
Implement disaster recovery plans that protect business continuity
Troubleshoot network and Internet connectivity problems
Efficiently document the network and provide high-quality user support
CD Features Practice Questions!
Detailed explanations of correct and incorrect answers
Multiple test modes
Random questions and order of answers
Coverage of each Network+ exam objective
informit.com/examcramISBN-13:978-0-7897-3795-3ISBN-10: 0-7897-3795-7

✦ Table of Contents

Cover......Page 1
Table of Contents......Page 5
Organization......Page 28
Instructional Features......Page 29
Extensive Practice Test Options and Final Review......Page 30
Network Hardware and Software Requirements......Page 31
Advice on Taking the Exam......Page 32
CompTIA Network+ (2009 Edition) Exam Objectives......Page 34
Study Tips......Page 46
Study Strategies......Page 47
Pretesting Yourself......Page 48
Exam Prep Tips......Page 49
Tips for During the Exam Session......Page 50
Part I: Exam Preparation......Page 52
Chapter 1: Introduction to Networking......Page 54
What Is a Network?......Page 57
LANs, WANs, MANs, and PANs......Page 59
Peer-to-Peer Versus Client/Server Networks......Page 62
Virtual Private Networks (VPN)......Page 68
Virtual Local Area Network (VLAN)......Page 71
LAN Topologies......Page 75
Wireless Network Topologies......Page 82
Key Terms......Page 89
Exam Questions......Page 90
Answers to Exam Questions......Page 96
Suggested Readings and Resources......Page 98
Chapter 2: Media and Connectors......Page 100
Networking Media......Page 103
Media Connectors......Page 115
Wiring Standards and Specialized Cable......Page 120
Components of Wiring Distribution......Page 123
Summary......Page 133
Key Terms......Page 134
Exercises......Page 135
Exam Questions......Page 136
Answers to Exam Questions......Page 140
Chapter 3: Networking Components and Devices......Page 144
Common Network Devices......Page 147
Specialized Network Devices......Page 176
Summary......Page 185
Key Terms......Page 186
Exercises......Page 187
Exam Questions......Page 188
Answers to Exam Questions......Page 192
Suggested Readings and Resources......Page 194
Chapter 4: Understanding the TCP/IP Protocol Suite......Page 196
A Brief Introduction to Protocols......Page 199
Transmission Control Protocol/Internet Protocol (TCP/IP) Protocol Suite......Page 201
Identifying Common TCP/IP Port Numbers......Page 228
Key Terms......Page 232
Exercise......Page 233
Exam Questions......Page 234
Answers to Exam Questions......Page 238
Chapter 5: TCP/IP Addressing and Routing......Page 240
Identifying MAC Addresses......Page 243
Understanding IPv4 Addressing Fundamentals......Page 245
Understanding Subnetting......Page 253
Public and Private IP Address Schemes......Page 256
IPv6 Addressing......Page 259
Differentiating Between Routable and Routing Protocols......Page 263
NAT, PAT, and SNAT......Page 268
Key Terms......Page 271
Exercises......Page 272
Exam Questions......Page 274
Answers to Exam Questions......Page 278
Chapter 6: Ethernet Networking Standards......Page 282
Introduction......Page 285
Characteristics Specified in the IEEE 802 Standards......Page 286
Differentiating Between Baseband and Broadband Signaling......Page 290
802.3 Ethernet Standards......Page 291
Key Terms......Page 301
Exercise......Page 302
Exam Questions......Page 303
Answers to Exam Questions......Page 307
Chapter 7: Wireless Networking......Page 310
Understanding Wireless Devices......Page 313
802.11 Wireless Standards......Page 319
Spread Spectrum Technology......Page 325
Establishing Communications Between Wireless Devices......Page 327
Beacon Management Frame......Page 329
Configuring and Troubleshooting the Wireless Connection......Page 330
Troubleshooting Wireless Signals......Page 332
Securing Wireless Networks......Page 336
Key Terms......Page 341
Exercises......Page 342
Exam Questions......Page 343
Answers to Exam Questions......Page 348
Suggested Readings and Resources......Page 350
Chapter 8: Wide Area Networking......Page 352
Introducing Wide Area Networking......Page 355
Switching Methods......Page 359
WAN Technologies......Page 364
Internet Access Technologies......Page 374
Wireless Wide Area Networking......Page 388
Summary......Page 391
Key Terms......Page 392
Exam Questions......Page 393
Answers to Exam Questions......Page 397
Chapter 9: OSI Model......Page 400
OSI Reference Model 101......Page 403
The Layers at Which Devices Operate......Page 413
TCP/IP Protocol Suite Summary......Page 416
Key Terms......Page 419
Exercise......Page 420
Exam Questions......Page 421
Answers to Exam Questions......Page 425
Chapter 10: Network Performance and Optimization......Page 428
Understanding Uptime......Page 431
Understanding the Risks......Page 433
Disaster Recovery......Page 450
Hot and Cold Spares......Page 456
Network Optimization Strategies......Page 459
Summary......Page 467
Key Terms......Page 468
Exercise......Page 469
Exam Questions......Page 470
Answers to Exam Questions......Page 474
Suggested Readings and Resources......Page 476
Chapter 11: Troubleshooting Procedures and Best Practices......Page 478
Troubleshooting Basics......Page 481
The Art of Troubleshooting......Page 484
Troubleshooting the Network......Page 497
Identifying Issues That May Need Escalation......Page 507
Troubleshooting Wireless Issues......Page 508
Key Terms......Page 511
Exercise......Page 512
Exam Questions......Page 513
Answers to Exam Questions......Page 519
Chapter 12: Command-Line Networking Tools......Page 522
Common Networking Utilities......Page 525
Key Terms......Page 563
Exercises......Page 564
Exam Questions......Page 566
Answers to Exam Questions......Page 572
Chapter 13: Network Management Tools and Documentation Procedures......Page 576
Documentation Management......Page 579
Monitoring the Network to Identify Performance......Page 593
Networking Tools......Page 606
Key Terms......Page 617
Exercises......Page 618
Exam Questions......Page 620
Answers to Exam Questions......Page 626
Chapter 14: Network Access Security......Page 630
Introduction......Page 633
Understanding Network Security Threats......Page 634
Physical and Logical Security......Page 635
Firewalls......Page 642
Intrusion Detection and Intrusion Prevention Systems......Page 648
Network Access Security......Page 649
Remote Access Protocols and Services......Page 652
Tunneling and Encryption......Page 654
Inside IPsec......Page 658
Remote Control Protocols......Page 660
Key Terms......Page 661
Exercises......Page 662
Exam Questions......Page 666
Answers to Exam Questions......Page 670
Chapter 15: Security Technologies and Malicious Software......Page 674
Authentication, Authorization, and Accountability (AAA)......Page 677
RADIUS and TACACS+......Page 684
Understanding Cryptography Keys......Page 686
Kerberos Authentication......Page 688
Public Key Infrastructure......Page 689
Network Access Control......Page 694
Remote Authentication Protocols......Page 696
Using Secure Protocols......Page 697
Malicious Software......Page 698
Maintaining Operating System Software......Page 709
Summary......Page 713
Key Terms......Page 714
Exercises......Page 715
Exam Questions......Page 717
Answers to Exam Questions......Page 722
Part II: Final Review......Page 726
Network+......Page 728
Network Technologies......Page 729
Network Media and Topologies......Page 750
Network Devices......Page 763
Network Management......Page 769
Network Tools......Page 777
Network Security......Page 779
Remote Authentication Protocols......Page 789
Practice Exam......Page 794
Answers to Exam Questions......Page 811
Appendixes......Page 820
Multiple Test Modes......Page 822
Installing the CD......Page 823
Creating a Shortcut to the MeasureUp Practice Tests......Page 824
Technical Support......Page 825
Glossary......Page 826
A......Page 828
B......Page 830
C......Page 832
D......Page 834
F......Page 837
H......Page 839
I......Page 841
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L......Page 845
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N......Page 848
P......Page 850
R......Page 853
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T......Page 859
U......Page 861
V......Page 862
W......Page 863
Z......Page 864
Index......Page 866
A......Page 867
B......Page 868
C......Page 869
D......Page 871
E......Page 872
F......Page 873
H......Page 874
I......Page 875
J-K-L......Page 876
M......Page 877
N......Page 878
O......Page 880
P......Page 881
Q......Page 882
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T......Page 886
U......Page 889
W......Page 890
X-Y-Z......Page 892