Chapter 7 Connecting Computers to a Network

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Presentation transcript:

Chapter 7 Connecting Computers to a Network

Chapter 7 Overview Identifying potential problems with connectivity Exploring cable types and their characteristics 2

Identifying Potential Problems with Connectivity Electromagnetic interference (EMI) Radio frequency interference (RFI) 3

Identifying Potential Problems with Connectivity Clean power 4

Identifying Potential Problems with Connectivity Dirty power 5

Identifying Potential Problems with Connectivity Power Spikes Power surge Power sag 6

Identifying Potential Problems with Connectivity Protection Surge protector Uninterruptible power supply (UPS) Power filters Generators 7

Identifying Potential Problems with Connectivity Network Monitor 8

Identifying Potential Problems with Connectivity Avoiding interception Use switches instead of hubs Protect network devices Sniffer modes Non-promiscuous mode Promiscuous mode 9

Identifying Potential Problems with Connectivity Starting Network Monitor 10

Identifying Potential Problems with Connectivity Displaying ICMP frames 11

Identifying Potential Problems with Connectivity Understanding cross talk 12

Identifying potential problems with connectivity Cross talk problems Corruption of data Loss of confidentiality 13

Exploring Cable Types and Their Characteristics Types of media Twisted pair Fiber optic Wireless Characteristics Distance Speed Frequency 14

Exploring Cable Types and Their Characteristics Twisted pair 15

Exploring Cable Types and Their Characteristics Twisted pair 10BaseT, 100BaseT 1000BaseT, 10BaseT Problems Interference from EMI/RFI Cross Talk Interception 16

Exploring Cable Types and Their Characteristics Twisted Pair Unshielded vs shielded Straight through vs crossover 17

Exploring Cable Types and Their Characteristics Fiber optic Single mode Multimode 18

Exploring Cable Types and Their Characteristics Fiber optic Immune to interference Immune to crosstalk Interception is difficult Lightweight 19

Exploring Cable Types and Their Characteristics Understanding wireless 20

Chapter 7 Summary Identifying potential problems with connectivity Exploring cable types and their characteristics 21