August
1999 QUESTION 3 Total Marks: 20 Marks |
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| (a) | Define and explain the following terms. (i) LAN (ii) WAN (iii) MAN
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[2] [2] [2] |
| (b) | What are the three conventional LAN
technologies?
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[9] |
| (c) | Explain what compression is, and why it is
commonly used for video data transmission.
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[5] |