August
1999 QUESTION 5 Total Marks: 20 Marks |
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questions
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| The network layer may
provide services using packet, message or circuit switching.
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| (a) | What is the purpose of these switching
techniques?
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[2] |
| (b) | Describe the operation of message switching.
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[6] |
| (c) | There are 2 forms of packet switching. What
are they called? What are the differences between them?
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[8] |
| (d) | The Internet Protocol (IP) uses one of these
switching techniques. Which one is it, and why is this technique suited to the Internet?
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[4] |