Question: Short Questions three: Answer briefly. hat does 10Base2 mean? What are MAC addresses? What is the disadvantage of a star topology? What is the minimum

Short Questions three: Answer briefly.

  1. hat does 10Base2 mean?
  2. What are MAC addresses?
  3. What is the disadvantage of a star topology?
  4. What is the minimum size of the data payload in an Ethernet frame?
  5. What is mean by active topology.
  6. Mention the main advantages and disadvantages of ALOHA protocol? How does slotted ALOHA improve performance over ALOHA ?
  7. Why star topology is commonly preferred?
  8. Explain the following terms in the context of OSI:
    1. Service Access Point
    2. Encapsulation
    3. Services
    4. Layers

  1. Compare between datagram and virtual circuit networks.
  2. What is the peer-to-peer communication in the OSI Model?

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