April
1999 QUESTION 4 Total Marks: 20 Marks |
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| (a) | Briefly describe three standards used
for data sharing on the Internet.
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[3] |
| (b) | Network applications are distinguished from
traditional applications by four main issues. Explain what these are.
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[8] |
| (c) | Electronic mail (email) functionally is
usually divided between a Mail User Agent and a Mail Transport Agent. Explain the role of
each of these.
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[3] |
| (d) | Email using the Simple Mail Transfer Protocol (SMTP) is an example of a network application. Explain how each of the issues you identified in part (b) applies, or does not apply, to SMTP. | [6] |