CCNA 1 - Module 5This is a featured page

Cabling LAN's and WAN's

This module discusses the type of network cabling that is typically used in different LAN's and WAN's and how the choice of media is dependent of environmental factors and user bandwidth requirements.

Vocabulary - Key Terms:
  • Passive – A passive hub serves as a physical connection point only. It does not manipulate or view the traffic that crosses it. It does not boost or clean the signal. A passive hub is used only to share the physical media. A passive hub does not need electrical power.
  • Active – An active hub must be plugged into an electrical outlet because it needs power to amplify a signal before it is sent to the other ports.
  • Intelligent – Intelligent hubs are sometimes called smart hubs. They function like active hubs with microprocessor chips and diagnostic capabilities. Intelligent hubs are more expensive than active hubs. They are also more useful in troubleshooting situations.
  • Local Area Network (LAN)- Computer network contained in a building, an office, or a campus.
  • Wide Area Network (WAN)- A geographically dispered telecommunications network.
  • Repeater- A repeater receives a signal, regenerates it, and passes it on
  • Hubs- Hubs are multiport repeaters.


Related Articles:

http://www.webopedia.com/TERM/L/local_area_network_LAN.html

Key Concepts:
Wire Symbols


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The 5-4-3 rule divides the network into two types of physical segments: populated (user) segments, and unpopulated (link) segments.

Each type of media has advantages and disadvantages. These are based on the following factors:
  • Cable length
  • Cost
  • Ease of installation
  • Susceptibility to interference

Each type of media has advantages and disadvantages. These are based on the following factors:
  • Cable length
  • Cost
  • Ease of installation
  • Susceptibility to interference

Crossover Cables are use for the following connections;
  • Switch to switch
  • Switch to hub
  • Hub to hub
  • Router to router
  • PC to PC
  • Router to PC


    • Straight through cables are used for the following connections;
  • Switch to router
  • Switch to PC or server
  • Hub to PC or server


    • Course Materials:

    CCNA 1 - Module 5 - Study Guide (.pdf)


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