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2 marksComputer Networks and Architectures

CAPE Computer Science Unit 2 · 2009 · Paper 2 · Question 5(b)(i)

OSI model communications.

State the first FOUR layers (layers 1 to 4) of the OSI model for computer communication.

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Other parts of this question

  1. 5(a)(i)Briefly explain how user accounts aid in network management.[3 marks]
  2. 5(a)(ii)Briefly explain how access logs aid in network management.[3 marks]
  3. 5(b)(ii)Explain how EACH of the first four OSI layers is involved in the transmission of a large file.[8 marks]
  4. 5(c)Explain how data are communicated in an IEEE 802.11b network, including a diagram in your response.[7 marks]
  5. 5(d)Distinguish between CDMA and TDMA access methods for mobile networks.[2 marks]

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