Introduction Question Pool

  1. Explain (and compare) the terms: simplex; half-duplex; and full-duplex.
  2. Packet switching requires control and address bits to be added to each packet. This causes considerable overhead in packet switching. In circuit switching, a transparent circuit is established. No extra bits are needed.
    a. Therefore there is no overhead in circuit switching. True|False. Explain
    b. Line utilization must be more efficient than in packet switching. True|False. Explain
  3. What group proposed the OSI model?
  4. Explain the key features of a layered network architecture.
  5. What organization is responsible for the FDDI standard?
  6. Fill in the names of the OSI model layers:{layer 7 at top}
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  7. Supply the missing words: A network is a collection of (A), (B) and (C) used to allow the exchange of (D) between (E) in a manner relatively (F) to the (G).
  8. Name and define OSI RM layer 7.
  9. Name and define OSI RM layer 6.
  10. Name and define OSI RM layer 5.
  11. Name and define OSI RM layer 4.
  12. Name and define OSI RM layer 3.
  13. Name and define OSI RM layer 2.
  14. Name and define OSI RM layer 1.
  15. Explain the ideas of 'enveloping' and 'layered architecture' and how they work together.
  16. What is the difference between a service and a protocol?
  17. What is a Service Access Point?
  18. As a central feature of network information transfer, what does connectivity mean?
  19. As a central feature of network information transfer, what does resource sharing mean?
  20. Give one advantage and one disadvantage each of circuit switching and packet switching techniques.
  21. What makes a network a Local Area Network?(be sure to define terms)
  22. What are the three layers in the IEEE model?
  23. Name the device used to connect network elements at the given OSI layer:
    1_ 2_ 3_ 5_
  24. The major advantage of Internet protocols over ISO protocols is: