(c) S.T.E.P.S. Publishing
TABLE OF CONTENTS
1. INTRODUCTION TO NETWORKING 2
1.1 AIMS 2
1.2 WHAT IS A NETWORK? 3
1.3 DEVICE CONNECTIVITY 4
1.4 STANDARDS 4
1.5 QUIZ 6
2. NETWORK COMPONENTS 7
2.1 AIMS 7
2.2 NETWORK ARCHITECTURE 8
2.2.1 Client/Server 8
2.2.2 Peer-to-peer 9
2.3 SETTING UP A NETWORK 9
2.4 NETWORK CONNECTIVITY DEVICES 10
2.4.1 Hubs 11
2.4.2 Repeaters 12
2.4.3 Bridges 12
2.4.4 Multiplexers 13
2.4.5 Routers 13
2.4.6 Brouters 14
2.4.7 Gateways 14
2.5 SWITCHING 16
2.5.1 Circuit Switching 16
2.5.2 Message Switching 16
2.5.3 Packet Switching 16
2.6 QUIZ 17
3. NETWORK TYPES 20
3.1 AIMS 20
3.2 OVERVIEW 21
3.3 LAN 21
3.4 WAN 23
3.4.1 X.25 24
3.4.2 ISDN 24
3.4.3 Frame Relay 24
3.4.4 ATM 25
3.4.5 T-Carriers 25
3.5 NETWORK CARDS 26
3.6 QUIZ 30
4. COMMUNICATION ON THE NETWORK 32
4.1 AIMS 32
4.2 OVERVIEW 33
4.3 OSI 7 LAYER MODEL 33
4.3.1 Application Layer 33
4.3.2 Presentation Layer 33
4.3.3 Session Layer 34
4.3.4 Transport layer 34
4.3.5 Network layer 34
4.3.6 Data Link layer 34
4.3.7 Physical layer 35
4.4 ACCESS METHODOLOGIES 36
4.4.1 CSMA/CD 36
4.4.2 Token Passing 36
4.5 DRIVERS 36
4.6 QUIZ 39
5. NETWORK TOPOLOGIES 42
5.1 AIMS 42
5.2 OVERVIEW 43
5.2.1 Bus Topology 43
5.2.2 Star Topology 44
5.2.3 Ring Topology 45
5.2.4 Mesh Topology 47
5.2.5 Combinations such as Star Bus & Star Ring 47
5.3 QUIZ 48
6. OPERATING SYSTEMS 51
6.1 AIMS 51
6.2 OVERVIEW 52
6.3 SERVER OPERATING SYSTEM 52
6.3.1 Features of Server Operating System 53
6.4 CLIENT OPERATING SYSTEMS 53
6.5 QUIZ 55
7. PROTOCOLS 56
7.1 AIMS 56
7.2 OVERVIEW 57
7.3 NETWORK PROTOCOLS 57
7.3.1 DLC 58
7.3.2 AppleTalk 58
7.3.3 NetBEUI 58
7.3.4 IPX/SPX 58
7.3.5 TCP/IP 59
7.3.6 SMB 59
7.3.7 NFS 60
7.4 INTERNET PROTOCOLS 60
7.5 QUIZ 62
8. NETWORK CABLES 65
8.1 AIMS 65
8.2 OVERVIEW 66
8.3 UTP 66
8.3.1 10BaseT 67
8.3.2 100BaseT 67
8.4 STP 68
8.5 COAXIAL 69
8.5.1 10Base5 69
8.5.2 10Base2 69
8.6 FIBER OPTIC 70
8.6.1 10BaseF 70
8.7 WIRELESS NETWORK MEDIA 72
8.8 RADIO WAVE 72
8.9 MICROWAVE 73
8.10 INFRARED 74
8.11 QUIZ 75
9. SERVER TYPES 78
9.1 AIMS 78
9.2 OVERVIEW 79
9.3 FILE SERVERS 79
9.4 APPLICATION SERVERS 79
9.5 PRINT SERVERS 79
9.6 MESSAGING SERVERS 79
9.7 QUIZ 81
10. NETWORK PRINTING 83
10.1 AIMS 83
10.2 OVERVIEW 84
10.3 PRINTER DRIVER 84
10.4 PRINT JOBS 85
10.5 PRINT SPOOLER 85
10.6 PEER-TO-PEER PRINTING 85
10.7 CLIENT/SERVER PRINTING 86
10.8 SOLVING PRINTING PROBLEMS 86
10.9 QUIZ 87
11. ELECTRONIC MESSAGING 89
11.1 AIMS 89
11.2 OVERVIEW 90
11.3 MESSAGING SERVERS 90
11.4 MESSAGING SERVER SOFTWARE 90
11.5 QUIZ 92
12. NETWORK ADMINISTRATION 93
12.1 AIMS 93
12.2 OVERVIEW 94
12.3 DAILY SYSTEM ADMINISTRATION DUTIES 94
12.3.1 File Management 94
12.3.2 Disk Management 94
12.3.3 User Management 95
12.3.4 Application Management 95
12.3.5 Hardware Management 95
12.3.6 System Management 96
12.3.7 Print Management 96
12.3.8 Backups 97
12.4 QUIZ 98
13. NETWORK PROBLEMS 99
13.1 AIMS 99
13.2 OVERVIEW 100
13.3 CROSSTALK 100
13.4 BEACONING 100
13.5 JITTER 101
13.6 LATENCY 101
13.7 JAMMED PACKETS 101
13.8 QUIZ 102
14. NETWORK PERFORMANCE 103
14.1 AIMS 103
14.2 OVERVIEW 104
14.3 SNMP 104
14.4 PROTOCOL ANALYSER (PA) 104
14.5 TDR 105
14.6 QUIZ 106
15. TEST YOUR KNOWLEDGE 107
15.1 ANSWERS TO THE TEST QUESTIONS 118
16. ABREVIATIONS 119
17. ANSWERS TO THE QUESTIONS 122
17.1 CHAPTER 1 122
17.2 CHAPTER 2 122
17.3 CHAPTER 3 123
17.4 CHAPTER 4 123
17.5 CHAPTER 5 124
17.6 CHAPTER 6 124
17.7 CHAPTER 7 125
17.8 CHAPTER 8 125
17.9 CHAPTER 9 126
17.10 CHAPTER 10 126
17.11 CHAPTER 11 127
17.12 CHAPTER 12 127
17.13 CHAPTER 12 127
17.14 CHAPTER 12 127