August 2000
SC223 : COMPUTER SECURITY

QUESTION 4

Total Marks: 15 Marks

• Question 1
• Question 2
• Question 3
• Question 5
• Cover Page

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SUGGESTED SOLUTIONS
for Question 4

(a) Other than the access control, identify any three ways from which protection against software vulnerabilities can be achieved. [3]

(b) Identify four ways in which link encryption and end-to-end encryption differ. [4]

(c) Explain any two security concerns involved in wireless communication. [4]

(d) Identify any two benefits of preventing unauthorised users or intruders from
obtaining physical access to a computer system. Classify each benefit
according to the nature of risk involved. [4]