Network + Study Guide: Exam N10-002

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ISBN: 9780782140149 | 0782140149
Cover: Hardcover
Copyright: 12/1/2001

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Here's the book you need to prepare for CompTIA's updated Network+ exam, N10-003. This revised edition of the best-selling Network+ Study Guide was developed to meet the exacting requirements of today's certification candidates. In addition to the focused and accessible instructional approach that has earned Sybex the reputation as the leading publisher for certification self-study guides, this book provides: Clear and concise information on networking essentials, Practical examples and insights drawn from real-world experience, Leading-edge exam preparation software, including a test engine and electronic flashcards. Book jacket.

Introduction	p. xix
Assessment Test	p. xxxi
Network Fundamentals	p. 1
Network Elements	p. 3
Local Area Network	p. 3
Wide Area Network	p. 4
Host, Workstation, and Server	p. 5
Peer-to-Peer vs. Client/Server Architecture	p. 7
Physical Topologies	p. 10
Bus Topology	p. 10
Star Topology	p. 11
Ring Topology	p. 13
Mesh Topology	p. 14
Backbones and Segments	p. 15
Selecting the Right Topology	p. 16
Physical Media	p. 16
Coaxial Cable	p. 17
Twisted-Pair Cable	p. 20
Fiber-Optic Cable	p. 25
Cable Type Summary	p. 30
Common Network Connectivity Devices	p. 31
NIC	p. 32
Hub	p. 32
Switch	p. 32
Bridge	p. 33
Router	p. 33
Gateways	p. 33
Other Devices	p. 34
Summary	p. 37
Exam Essentials	p. 37
Review Questions	p. 38
Answers to Review Questions	p. 42
The OSI Model	p. 45
Introducing the OSI Model	p. 46
The OSI Model's Lower Layers	p. 51
The Physical Layer	p. 51
The Data Link Layer	p. 59
The OSI Model's Middle Layers	p. 70
The Network Layer	p. 70
The Transport Layer	p. 77
The OSI Model's Upper Layers	p. 80
The Session Layer	p. 80
The Presentation Layer	p. 81
The Application Layer	p. 81
Upper-Layer Devices	p. 81
Networking Protocols	p. 81
TCP/IP	p. 82
IPX/SPX	p. 84
NetBEUI	p. 86
AppleTalk and AppleTalk over IP	p. 87
Summary	p. 91
Exam Essentials	p. 91
Review Questions	p. 93
Answers to Review Questions	p. 97
TCP/IP Fundamentals	p. 99
Introducing TCP/IP	p. 102
A Brief History of TCP/IP	p. 102
TCP/IP Design Goals	p. 103
TCP/IP and the OSI Model	p. 105
The Transmission Control Protocol	p. 107
The Internet Layer Protocols	p. 109
The Internet Protocol	p. 109
Internet Control Message Protocol (ICMP)	p. 112
Address Resolution Protocol (ARP) and Reverse ARP (RARP)	p. 112
Routers and Routing	p. 113
The Application Protocols	p. 114
Simple Network Management Protocol (SNMP)	p. 115
File Transfer Protocol (FTP)	p. 115
Trivial File Transfer Protocol (TFTP)	p. 115
Secure File Transfer Protocol (SFTP)	p. 115
Simple Mail Transfer Protocol (SMTP)	p. 116
Post Office Protocol (POP)	p. 116
Internet Message Access Protocol, Version 4 (IMAP4)	p. 116
Line Printer Daemon (LPD)	p. 116
Network File System (NFS)	p. 117
Telnet	p. 117
Secure Shell (SSH)	p. 117
Hypertext Transfer Protocol (HTTP)	p. 117
Hypertext Transfer Protocol Secure (HTTPS)	p. 117
Network Time Protocol (NTP)	p. 117
Network News Transfer Protocol (NNTP)	p. 118
Secure Copy Protocol (SCP)	p. 118
Lightweight Directory Access Protocol (LDAP)	p. 118
Internet Group Management Protocol (IGMP)	p. 118
Line Printer Remote (LPR)	p. 119
Other Upper-Layer Protocols	p. 119
User Datagram Protocol (UDP)	p. 119
Server Message Block (SMB)	p. 120
AppleTalk Filing Protocol (AFP)	p. 120
Internet Connection Sharing (ICS)	p. 121
Overview of Ports and Sockets	p. 121
Understanding IP Addressing	p. 125
Overview of Ethernet Addresses	p. 125
Overview of IP Addresses	p. 125
Understanding Subnets	p. 130
Subnetting a Class C Network	p. 131
Classless Inter-Domain Routing (CIDR)	p. 133
IP Proxy Servers	p. 134
Name Resolution Methods	p. 136
Internet Domain Organization	p. 137
Using HOSTS	p. 138
Using DNS	p. 138
Using WINS	p. 142
Configuring TCP/IP on Windows Workstations	p. 145
The IP Settings Tab	p. 147
The DNS Tab	p. 148
The WINS Tab	p. 148
The Options Tab	p. 150
The Windows Registry	p. 151
Zero Configuration (ZeroConf)	p. 151
Virtual LANs (VLANs)	p. 153
Summary	p. 154
Exam Essentials	p. 155
Review Questions	p. 157
Answers to Review Questions	p. 161
TCP/IP Utilities	p. 163
Using the Address Resolution Protocol (ARP)	p. 164
The Windows ARP Table	p. 165
Using The arp Utility	p. 165
Using the netstat Utility	p. 167
The -a Switch	p. 168
The -e Switch	p. 169
The -r Switch	p. 170
The -s Switch	p. 171
The -n Switch	p. 173
The -p Switch	p. 174
Using the nbtstat Utility	p. 174
The -a Switch	p. 175
The -A Switch	p. 177
The -c Switch	p. 177
The -n Switch	p. 178
The -r Switch	p. 178
The -R Switch	p. 179
The -S Switch	p. 179
The -s Switch	p. 180
Using The File Transfer Protocol (FTP)	p. 180
Starting FTP and Logging In to an FTP Server	p. 181
Downloading Files	p. 182
Uploading Files	p. 184
Using the ping Utility	p. 185
Using winipcfg, ipconfig, and ifconfig	p. 186
Using the Winipcfg Utility	p. 186
Using the ipconfig Utility	p. 188
Using the ifconfig Utility	p. 190
Using the tracert Utility	p. 191
Using the Telnet Utility	p. 191
Using the nslookup Utility	p. 194
Summary	p. 195
Exam Essentials	p. 195
Review Questions	p. 197
Answers to Review Questions	p. 201
Network Operating Systems	p. 203
Microsoft Windows	p. 204
Features	p. 205
Client Support	p. 206
Interoperability	p. 206
Authentication	p. 207
File and Print Services	p. 208
Application Support	p. 208
Security	p. 208
Novell NetWare	p. 209
Features	p. 209
Client Support	p. 210
Interoperability	p. 210
Authentication	p. 211
Directory Structure	p. 213
File and Print Services	p. 215
Application Support	p. 215
Security	p. 215
UNIX/Linux	p. 216
Features	p. 216
Client Support and Interoperability	p. 217
Authentication	p. 217
File and Print Services	p. 217
Application Support	p. 218
Security	p. 218
Macintosh	p. 219
Features	p. 219
Client Support	p. 221
Interoperability	p. 221
Authentication	p. 222
File and Print-Services	p. 222
Application Support	p. 222
Security	p. 223
Summary	p. 223
Exam Essentials	p. 223
Review Questions	p. 225
Answers to Review Questions	p. 229
Wired and Wireless Networks	p. 231
Before Installing New Hardware or Software	p. 232
Standard Operating Procedures	p. 232
Environmental Issues	p. 237
Error Messages and Log Files	p. 242
Current Configuration and Baselines	p. 243
Other Documentation	p. 244
Wireless Networking	p. 244
Wireless Network Components	p. 244
Wireless Network Installation	p. 248
Installation Type	p. 252
Workstation Configuration	p. 260
Configuring a Windows 9x Network	p. 260
Configuring a Windows 2000 Network Client	p. 264
Configuring Windows Clients for NetWare Network Access	p. 265
Network Installation Tools	p. 267
Wire Crimper	p. 267
Media Testing Tools	p. 268
Punchdown Tool	p. 271
Summary	p. 273
Exam Essentials	p. 273
Review Questions	p. 275
Answers to Review Questions	p. 279
WAN and Remote Access Technologies	p. 281
Remote Access Connection Configuration Requirements	p. 283
Hardware Requirements	p. 284
Software Requirements	p. 285
Remote Access Connection Methods	p. 286
The Public Switched Telephone Network (PSTN)	p. 286
Integrated Services Digital Network (ISDN)	p. 288
Other Digital Options	p. 289
Remote Access Protocols	p. 296
Serial Line Internet Protocol (SLIP)	p. 296
Point-to-Point Protocol (PPP) and PPPoE (Point-to-Point Protocol over Ethernet)	p. 297
Point-to-Point Tunneling Protocol (PPTP)	p. 302
Windows Remote Access Services (RAS)	p. 308
Remote Desktop Protocol (RDP)	p. 308
Summary	p. 309
Exam Essentials	p. 309
Review Questions	p. 310
Answers to Review Questions	p. 314
Network Access and Security	p. 317
Accessing Network Resources	p. 320
Client Selection	p. 320
Installing the Windows 95/98 and NT/2000 Client	p. 320
Installing the NetWare Client	p. 321
Installing the UNIX Client	p. 323
Selecting a Primary Client	p. 324
Managing User Account and Password Security	p. 324
Network Resource-Sharing Security Models	p. 325
Managing Accounts	p. 325
Managing Passwords	p. 328
Using Firewalls	p. 332
Firewall Technologies	p. 332
Comparing Firewall Operating System Platforms	p. 341
Understanding and Defending against Hacker Attacks	p. 343
Hacker Tools: Common Network Attacks	p. 344
Intruder Detection: Defense Techniques	p. 345
DoD Security Standards	p. 347
Trusted Computer System	p. 347
Trusted Network Interpretation	p. 348
Certified Operating Systems and Networks	p. 348
Understanding Encryption	p. 350
Uses for Encryption	p. 350
How Encryption Works	p. 351
Encryption Keys	p. 351
Security Policies	p. 353
Security Audit	p. 354
Clean Desk Policy	p. 354
Recording Equipment	p. 354
Other Common Security Policies	p. 355
Breaking Policy	p. 357
The Exit Interview	p. 357
Summary	p. 358
Exam Essentials	p. 358
Review Questions	p. 360
Answers to Review Questions	p. 364
Fault Tolerance and Disaster Recovery	p. 367
Assessing Fault Tolerance and Disaster Recovery Needs	p. 368
Hot Site	p. 369
Warm Site	p. 371
Cold Site	p. 372
Power Management	p. 372
Surge Protectors	p. 373
Battery Backup Systems	p. 374
Line Conditioners	p. 376
Disk System Fault Tolerance	p. 377
Disk Mirroring	p. 378
Disk Duplexing	p. 378
Disk Striping	p. 380
Redundan Array of Inexpensive (or Independent) Disks (RAID)	p. 380
Backup Considerations	p. 382
Backup Media Options	p. 383
Backup Utilities	p. 385
Backup Types	p. 386
Tape Rotation Schedule	p. 390
Virus Protection	p. 392
Types of Viruses	p. 393
Updating Antivirus Components	p. 394
Scanning for Viruses	p. 395
Software Revisions	p. 397
Is It Necessary?	p. 397
Where to Get Patches	p. 397
How to Apply Patches	p. 398
Summary	p. 399
Exam Essentials	p. 400
Review Questions	p. 401
Answers to Review Questions	p. 405
Network Troubleshooting	p. 407
Narrowing Down the Problem	p. 409
Did You Check the Simple Stuff?	p. 409
Is Hardware or Software Causing the Problem?	p. 412
Is It a Workstation or a Server Problem?	p. 413
Which Segments of the Network Are Affected?	p. 414
Are There Any Cabling Issues?	p. 414
Troubleshooting Steps	p. 415
Establish Symptoms	p. 415
Identify the Affected Area	p. 415
Establish What Has Changed	p. 416
Select the Most Probable Cause	p. 417
Implement a Solution	p. 418
Test the Result	p. 420
Recognize the Potential Effects of the Solution	p. 420
Document the Solution	p. 420
The Troubleshooter's Resources	p. 421
Log Files	p. 421
Manufacturers' Troubleshooting Resources	p. 434
Hardware Network Troubleshooting Tools	p. 436
Software Troubleshooting Tools	p. 439
Troubleshooting Tips	p. 440
Don't Overlook the Small Stuff	p. 440
Prioritize Your Problems	p. 440
Check the Software Configuration	p. 441
Don't Overlook Physical Conditions	p. 441
Don't Overlook Cable Problems	p. 442
Check for Viruses	p. 443
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Network + Study Guide: Exam N10-002

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