Network+ 2005 In Depth

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ISBN: 9781592007929 | 1592007929
Cover: Paperback
Copyright: 3/15/2005

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"Network+ 2005 In Depth" gives you all the skills that you need to pass the CompTIA 2005 Network+ exam. Begin with an introduction to the fundamental building blocks that form a modern network, such as protocols, topologies, hardware, and network operating systems. Then, dive into the most important concepts in contemporary networking, such as client/server architecture, TCP/IP, Ethernet, wireless transmission, and security. When you are finished, you will be prepared to select the best network design, hardware, and software for your environment. You will also have the skills to build a network from scratch and maintain, upgrade, and troubleshoot an existing network. CoursePrep Exam Guide available on Companion Web Site!

Preface	p. xvii
Acknowledgments	p. xxii
Photo Credits	p. xxiii
State of the Information Technology (IT) Field	p. xxv
An Introduction to Networking	p. 1
Why Use Networks?	p. 2
Types of Networks	p. 3
Peer-to-peer Networks	p. 3
Client/Server Networks	p. 4
LANs, MANs, and WANs	p. 6
Elements Common to Client/Server Networks	p. 9
How Networks Are Used	p. 13
File and Print Services	p. 13
Communications Services	p. 13
Mail Services	p. 14
Internet Services	p. 15
Management Services	p. 15
Becoming a Networking Professional	p. 16
Mastering the Technical Challenges	p. 17
Developing Your "Soft Skills"	p. 18
Pursuing Certification	p. 19
Finding a Job in Networking	p. 20
Joining Professional Associations	p. 21
Chapter Summary	p. 22
Key Terms	p. 24
Review Questions	p. 28
Networking Standards and the OSI Model	p. 31
Networking Standards Organizations	p. 32
ANSI	p. 33
EIA and TIA	p. 33
IEEE	p. 34
ISO	p. 34
ITU	p. 34
ISOC	p. 35
IANA and ICANN	p. 35
The OSI Model	p. 36
Application Layer	p. 38
Presentation Layer	p. 38
Session Layer	p. 39
Transport Layer	p. 39
Network Layer	p. 42
Data Link Layer	p. 44
Physical Layer	p. 47
Applying the OSI Model	p. 47
Communication Between Two Systems	p. 48
Frame Specifications	p. 50
IEEE Networking Specifications	p. 51
Chapter Summary	p. 52
Key Terms	p. 54
Review Questions	p. 60
Transmission Basics and Networking Media	p. 63
Transmission Basics	p. 64
Analog and Digital Signaling	p. 64
Data Modulation	p. 69
Transmission Direction	p. 70
Relationships Between Nodes	p. 74
Throughput and Bandwidth	p. 74
Baseband and Broadband	p. 76
Transmission Flaws	p. 77
Common Media Characteristics	p. 80
Throughput	p. 80
Cost	p. 80
Size and Scalability	p. 81
Connectors and Media Converters	p. 81
Noise Immunity	p. 82
Coaxial Cable	p. 83
Twisted-Pair Cable	p. 85
STP (Shielded Twisted-Pair)	p. 86
UTP (Unshielded Twisted-Pair)	p. 87
Comparing STP and UTP	p. 90
10BASE-T	p. 91
100BASE-T (Fast Ethernet)	p. 92
1000BASE-T (Gigabit Ethernet over Twisted-pair)	p. 93
1000BASE-CX (Gigabit Ethernet over Twinax)	p. 93
Fiber-Optic Cable	p. 93
SMF (Single-Mode Fiber)	p. 94
MMF (Multimode Fiber)	p. 95
10BASE-FL	p. 97
100BASE-FX	p. 97
1000BASE-LX	p. 98
1000BASE-SX	p. 98
10-Gigabit Fiber-Optic Standards	p. 99
Cable Design and Management	p. 100
Installing Cable	p. 104
Wireless Transmission	p. 108
The Wireless Spectrum	p. 109
Characteristics of Wireless Transmission	p. 110
Infrared Transmission	p. 114
Wireless LAN (WLAN) Architecture	p. 115
Chapter Summary	p. 118
Key Terms	p. 120
Review Questions	p. 132
Network Protocols	p. 135
Introduction to Protocols	p. 136
TCP/IP (Transmission Control Protocol/Internet Protocol)	p. 137
The TCP/IP Core Protocols	p. 137
Addressing in TCP/IP	p. 148
Assigning IP Addresses	p. 152
Sockets and Ports	p. 158
Addressing in IPv6	p. 160
Host Names and DNS (Domain Name System)	p. 161
Some TCP/IP Application Layer Protocols	p. 169
IPX/SPX (Internetwork Packet Exchange/Sequenced Packet Exchange)	p. 175
The IPX and SPX Protocols	p. 175
Addressing in IPX/SPX	p. 175
NetBIOS and NetBEUI	p. 176
Addressing in NetBEUI	p. 177
WINS (Windows Internet Naming Service)	p. 177
AppleTalk	p. 178
Binding Protocols on a Windows XP Workstation	p. 179
Chapter Summary	p. 180
Key Terms	p. 183
Review Questions	p. 190
Networking Hardware	p. 193
NICs (Network Interface Cards)	p. 194
Types of NICs	p. 195
Installing NICs	p. 203
Repeaters and Hubs	p. 215
Bridges	p. 218
Switches	p. 221
Installing a Switch	p. 222
Cut-Through Mode	p. 224
Store and Forward Mode	p. 225
Using Switches to Create VLANs	p. 225
Higher-Layer Switches	p. 227
Routers	p. 227
Router Features and Functions	p. 228
Routing Protocols: RIP, OSPF, EIGRP, and BGP	p. 231
Brouters	p. 233
Gateways	p. 233
Chapter Summary	p. 234
Key Terms	p. 237
Review Questions	p. 243
Topologies and Access Methods	p. 245
Simple Physical Topologies	p. 246
Bus	p. 246
Ring	p. 248
Star	p. 249
Hybrid Physical Topologies	p. 250
Star-Wired Ring	p. 250
Star-Wired Bus	p. 251
Backbone Networks	p. 252
Serial Backbone	p. 252
Distributed Backbone	p. 253
Collapsed Backbone	p. 254
Parallel Backbone	p. 255
Logical Topologies	p. 256
Switching	p. 257
Circuit Switching	p. 257
Message Switching	p. 258
Packet Switching	p. 258
Ethernet	p. 259
CSMA/CD (Carrier Sense Multiple Access with Collision Detection)	p. 259
Switched Ethernet	p. 261
Ethernet Frames	p. 262
PoE (Power over Ethernet)	p. 264
Token Ring	p. 265
FDDI (Fiber Distributed Data Interface)	p. 267
ATM (Asynchronous Transfer Mode)	p. 268
Wireless Networks	p. 270
802.11	p. 270
Bluetooth	p. 275
Infrared (IR)	p. 277
Chapter Summary	p. 280
Key Terms	p. 282
Review Questions	p. 288
WANs, Internet Access, and Remote Connectivity	p. 291
WAN Essentials	p. 292
WAN Topologies	p. 294
Bus	p. 294
Ring	p. 295
Star	p. 295
Mesh	p. 297
Tiered	p. 297
PSTN	p. 299
X.25 and Frame Relay	p. 302
ISDN	p. 305
T-Carriers	p. 307
Types of T-Carriers	p. 308
T-Carrier Connectivity	p. 309
DSL	p. 312
Types of DSL	p. 312
DSL Connectivity	p. 314
Broadband Cable	p. 316
SONET (Synchronous Optical Network)	p. 318
Wireless WANs and Internet Access	p. 321
IEEE 802.11 Internet Access	p. 321
IEEE 802.16 (WiMAX) Internet Access	p. 323
Satellite Internet Access	p. 324
WAN Technologies Compared	p. 327
Remote Connectivity	p. 328
Dial-up Networking	p. 328
Remote Access Servers	p. 329
Remote Access Protocols	p. 331
Remote Control	p. 332
Terminal Services	p. 335
Web Portals	p. 336
VPNs (Virtual Private Networks)	p. 336
Chapter Summary	p. 338
Key Terms	p. 342
Review Questions	p. 351
Network Operating Systems and Windows Server 2003-Based Networking	p. 355
Introduction to Network Operating Systems	p. 356
Selecting a Network Operating System	p. 357
Network Operating Systems and Servers	p. 358
Network Operating System Services and Features	p. 359
Client Support	p. 360
Identifying and Organizing Network Elements	p. 365
Sharing Applications	p. 368
Sharing Printers	p. 370
Managing System Resources	p. 372
Introduction to Windows Server 2003	p. 375
Windows Server 2003 Hardware Requirements	p. 377
A Closer Look at Windows Server 2003	p. 378
Windows Server 2003 Memory Model	p. 378
Windows Server 2003 File Systems	p. 380
MMC (Microsoft Management Console)	p. 382
Active Directory	p. 384
Planning for Installation	p. 392
Installing and Configuring a Windows Server 2003 Server	p. 395
The Installation Process	p. 395
Initial Configuration	p. 397
Establishing Users and Groups	p. 399
Internetworking with Other Network Operating Systems	p. 402
Chapter Summary	p. 403
Key Terms	p. 405
Review Questions	p. 412
Networking with UNIX-Type of Operating Systems	p. 415
A Brief History of UNIX	p. 416
Varieties of UNIX	p. 417
Proprietary UNIX	p. 418
Open Source UNIX	p. 418
Three Flavors of UNIX	p. 419
UNIX Server Hardware Requirements	p. 420
Solaris Hardware Requirements	p. 421
Linux Hardware Requirements	p. 422
Mac OS X Server Hardware Requirements	p. 423
A Closer Look at UNIX	p. 423
UNIX Multiprocessing	p. 424
The UNIX Memory Model	p. 424
The UNIX Kernel	p. 424
UNIX System File and Directory Structure	p. 425
UNIX System File Services	p. 426
A UNIX Command Sampler	p. 426
Installing Linux	p. 432
Planning a Linux Installation	p. 432
Installing and Configuring Fedora Core	p. 433
Administering a UNIX-Type of Server	p. 434
Establishing Groups and Users on Linux and Solaris	p. 434
Establishing Groups and Users on Mac OS X Server	p. 435
Changing File Access Permissions	p. 438
Connecting to UNIX-Type of Servers	p. 440
Chapter Summary	p. 442
Key Terms	p. 445
Review Questions	p. 447
NetWare-Based Networking	p. 451
Introduction to NetWare	p. 452
NetWare Server Hardware Requirements	p. 455
A Closer Look at the NetWare 6.5 Operating System	p. 456
NetWare Integrated Kernel	p. 456
NetWare File System	p. 458
eDirectory	p. 460
Planning for Installation	p. 464
Installing and Configuring a NetWare 6.5 Server	p. 466
The Installation Process	p. 466
Establishing Users and Groups	p. 468
Client Services	p. 471
Traditional Client Access	p. 471
Native File Access	p. 472
Browser-Based Access	p. 474
Internetworking with Other Operating Systems	p. 474
Chapter Summary	p. 475
Key Terms	p. 477
Review Questions	p. 479
In-Depth TCP/IP Networking	p. 481
Designing TCP/IP-Based Networks	p. 482
Subnetting	p. 483
CIDR (Classless Inter-Domain Routing)	p. 491
Internet Gateways	p. 493
NAT (Network Address Translation)	p. 494
ICS (Internet Connection Sharing)	p. 496
Intranets and Extranets	p. 497
TCP/IP Mail Services	p. 498
SMTP (Simple Mail Transfer Protocol)	p. 498
MIME (Multipurpose Internet Mail Extensions)	p. 499
POP (Post Office Protocol)	p. 499
IMAP (Internet Message Access Protocol)	p. 500
Additional TCP/IP Utilities	p. 501
Netstat	p. 502
Nbtstat	p. 503
Nslookup	p. 504
Dig	p. 505
Whois	p. 506
Traceroute (Tracert)	p. 507
Ipconfig	p. 508
Winipcfg	p. 509
Ifconfig	p. 510
VoIP (Voice Over IP)	p. 511
Chapter Summary	p. 515
Key Terms	p. 517
Review Questions	p. 521
Troubleshooting Network Problems	p. 523
Troubleshooting Methodology	p. 524
Identify the Symptoms and Potential Causes	p. 525
Identify the Affected Area	p. 526
Establish What Has Changed	p. 530
Select the Most Probable Cause	p. 531
Implement an Action Plan and Solution Including Potential Effects	p. 537
Test the Result	p. 541
Identify the Results and Effects of the Solution	p. 542
Document the Solution and Process	p. 542
Help to Prevent Future Problems	p. 545
Troubleshooting Tools	p. 546
Crossover Cable	p. 546
Tone Generator and Tone Locator	p. 546
Multimeter	p. 548
Cable Continuity Testers	p. 549
Cable Performance Testers	p. 551
Network Monitors	p. 552
Protocol Analyzers	p. 554
Wireless Network Testers	p. 558
Chapter Summary	p. 558
Key Terms	p. 560
Review Questions	p. 563
Ensuring Integrity and Availability	p. 565
What Are Integrity and Availability?	p. 566
Viruses	p. 568
Types of Viruses	p. 569
Virus Characteristics	p. 571
Virus Protection	p. 572
Virus Hoaxes	p. 575
Fault Tolerance	p. 575
Environment	p. 576
Power	p. 576
Topology and Connectivity	p. 580
Servers	p. 584
Storage	p. 587
Data Backup	p. 594
Backup Media and Methods	p. 595
Backup Strategy	p. 598
Disaster Recovery	p. 600
Disaster Recovery Planning	p. 601
Disaster Recovery Contingencies	p. 601
Chapter Summary	p. 602
Key Terms	p. 606
Review Questions	p. 611
Network Security	p. 615
Security Audits	p. 616
Security Risks	p. 617
Risks Associated with People	p. 618
Risks Associated with Transmission and Hardware	p. 619
Risks Associated with Protocols and Software	p. 620
Risks Associated with Internet Access	p. 621
An Effective Security Policy	p. 622
Security Policy Goals	p. 622
Security Policy Content	p. 624
Response Policy	p. 625
Physical Security	p. 625
Security in Network Design	p. 627
Firewalls	p. 628
Proxy Servers	p. 631
Remote Access	p. 632
Network Operating System Security	p. 633
Logon Restrictions	p. 634
Passwords	p. 635
Encryption	p. 636
Key Encryption	p. 636
PGP (Pretty Good Privacy)	p. 641
SSL (Secure Sockets Layer)	p. 641
SSH (Secure Shell)	p. 642
SCP (Secure CoPy) and SFTP (Secure File Transfer Protocol)	p. 643
IPSec (Internet Protocol Security)	p. 644
Authentication Protocols	p. 644
RADIUS and TACACS	p. 645
PAP (Password Authentication Protocol)	p. 646
CHAP and MS-CHAP	p. 646
EAP (Extensible Authentication Protocol)	p. 649
Kerberos	p. 649
Wireless Network Security	p. 651
WEP (Wired Equivalent Privacy)	p. 651
IEEE 802.11i and WPA (Wi-Fi Protected Access)	p. 653
Chapter Summary	p. 653
Key Terms	p. 656
Review Questions	p. 664
Implementing and Managing Networks	p. 667
Project Management	p. 668
Determining Project Feasibility	p. 670
Assessing Needs	p. 671
Setting Project Goals	p. 672
Project Planning	p. 673
Testing and Evaluation	p. 677
Network Management	p. 678
Obtaining Baseline Measurements	p. 678
Performance and Fault Management	p. 680
Asset Management	p. 683
Software Changes	p. 684
Patches	p. 685
Client Upgrades	p. 687
Shared Application Upgrades	p. 688
Network Operating System Upgrades	p. 689
Reversing a Software Upgrade	p. 691
Hardware and Physical Plant Changes	p. 692
Adding or Upgrading Equipment	p. 693
Cabling Upgrades	p. 695
Backbone Upgrades	p. 696
Reversing Hardware Changes	p. 697
Chapter Summary	p. 697
Key Terms	p. 700
Review Questions	p. 702
Network+ Examination Objectives	p. 705
Network+ Practice Exam	p. 715
Visual Guide to Connectors	p. 739
Standard Networking Forms	p. 743
Answers to Chapter Review Questions	p. 751
Glossary	p. 757
Index	p. 829
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Network+ 2005 In Depth

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