August
1999 QUESTION 4 Total Marks: 20 Marks |
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questions
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| (a) | Distinguish between the operating system
kernel and security kernel by discussing the purpose and the services provided by each.
|
[4] |
| (b) | Identify and explain any two reasons for
isolating the security kernel from the operating system kernel.
|
[4] |
| (c) | Explain briefly, any four issues under Procedure
of Use that can improve the security in use of PC.
|
[4] |
| (d) | Explain how Call-back and Silent
Modems help to protect computers from unauthorized access.
|
[4] |
| (e) | What are the important objectives of a good
disaster plan?
|
[2] |
| (f) | Explain the disk mirroring and disk
duplexing features available in the standard network products used for disaster
recovery.
|
[2] |