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10IPT: Collisions!

posted Feb 14, 2012, 12:10 PM by Eddie Woo
Yesterday we had a look in more depth at something related to the star topology, namely client-server architecture. In today's lesson, we do a similar thing but with regard to the bus topology. We'll consider the whole idea of data collision and look at one method of addressing it. Complete the following tasks: 
  1. Describe a data collision.
  2. Explain why a protocol for handling collisions is needed for a network using a bus topology, but not for a network using a ring topology. 
  3. Describe "Carrier Signal Multiple Access with Collision Detection" by defining each part of the protocol's name. 
  4. Describe the procedure that nodes execute when there is the simultaneous transmission of data from multiple nodes.
  5. CSMA/CD is not the only protocol for handling collisions. Use the internet to research the following protocols and identify their distinguishing characteristics:
    • CSMA/CA
    • MACAW (wireless)
    • PCF (wireless)
[Reference: Morse code]