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169.

In which one of the following page replacement policies, Belady’s anomaly may occur?
[1 mark]
(A) FIFO
(B) Optimal
(C) LRU
(D) MRU

asked in Computer Science And Engineering, 2009

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170.

A CPU generally handles an interrupt by executing an interrupt service routine
[1 mark]
(A) As soon as an interrupt is raised
(B) By checking the interrupt register at the end of fetch cycle
(C) By checking the interrupt register after finishing the execution of the current instruction
(D) By checking the interrupt register at fixed time intervals

asked in Computer Science And Engineering, 2009

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171.

How many 32 X 1 RAM chips are needed to provide a memory Capacity of 256 K-bytes ‽ [1 mark]
(A) 8
(B) 32
(C) 64
(D) 128

asked in Computer Science And Engineering, 2009

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172.

What is the minimum number of gates required to implement the Boolean function
(AB + C) if we have to use only 2-input NOR gates? [1 mark]
(A) 2
(B) 3
(C) 4
(D) 5

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2009

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173.

(1217)₈ is equivalent to [1 mark]
(A) (1217)₁₆
(B) (028F)₁₆
(C) (2297)₁₀
(D) (0B17)₁₆

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2009

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174.

Consider the binary relation
R = {(x,y),(x,z),(z,x),(z,y)} on the set {x,y,z}. Which one of the following is TRUE ?
[1 mark]
(A) R is symmetric but NOT antisymmetric
(B) R is NOT symmetric but antisymmetric
(C) R is both symmetric and antisymetric.
(D) R is neither symmetric nor antisymmetric

asked in Computer Science And Engineering, 2009

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