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97.

Consider a company that assembles computers. The probability of a faulty assembly of any computer is p. The company therefore subjects each computer to a testing process. This testing process gives the correct result for any computer with a probability of q. What is the probability of a computer being declared faulty? [2 marks]
(A) pq+(1 – p)(1 – q)
(B) (1 – q)p
(C) (1 – p)q
(D) pq

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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98.

Which of the following statements are true?
I. Shortest remaining time first scheduling may cause starvation
II. Preemptive scheduling may cause starvation
III. Round robin is better than FCFS in terms of response time
[1 mark]
(A) I only
(B) I and III only
(C) II and III only
(D) I, II and III

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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99.

A system uses FIFO policy for page replacement. If has 4 page frames with no page loaded to begin with. The system first accesses 100 distinct pages in some order and then accesses the same 100 pages but now in the reverse order. How many page faults will occur? [1 mark]
(A) 196
(B) 192
(C) 197
(D) 195

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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100.

Consider the methods used by processes P1 and P2 for accessing their critical sections whenever needed, as given below. The initial values of shared boolean variables S1 and S2 are randomly assigned.

Method used by P1 Method used by P2

while (S1 = = S2);
Critical Section
S1= S2; while (S1 ! = S2);
Critical Section
S2 = not (S1);

Which one of the following statements describes the properties achieved?
[1 mark]
(A) Mutual exclusion but not progress
(B) Progress but not mutual exclusion
(C) Neither mutual exclusion nor progress
(D) Both mutual exclusion and progress

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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101.

What is the appropriate pairing of items in the two columns listing various activities encountered in a software life cycle?

P. Requirements Capture 1. Module Development and Integration

Q. Design 2. Domain Analysis

R. Implementation 3. Structural and Behavioral Modeling

S. Maintenance 4. Performance Tuning

[1 mark]
(A) P-3 Q-2 R-4 S-1
(B) P-2 Q-3 R-1 S-4
(C) P-3 Q-2 R-1 S-4
(D) P-2 Q-3 R-4 S-1

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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102.

The cyclomatic complexity of each of the modules A and B shown below is 10. What is the cyclomatic complexity of the sequential integration shown on the right hand side?

[1 mark]
(A) 19
(B) 21
(C) 20
(D) 10

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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