UGC NET Computer Science Paper II June 2010 - Part 4 MCQs

31.       In an absolute loading scheme, which loader function is accomplished by a loader?

(A) Re-allocation

(B) Allocation

(C) Linking

(D) Loading

Answer: D

32.       Which of the following expression is represented by the parse tree?

(A) (A + B) * C

(B) A + * BC

(C) A + B * C

(D) A * C + B

Answer: A

33.       Consider the following left associative operators in decreasing order of precedence:

– subtraction (highest precedence)

* multiplication

$ exponentiation (lowest precedence)

What is the result of the following expression?

3 – 2 * 4 $ | * 2**3

(A) – 61

(B) 64

(C) 512

(D) 4096

Answer: D

34.       Which of the following is the most general phase structured grammar?

(A) Regular

(B) Context-sensitive

(C) Context free

(D) None of the above

Answer: B

35.       Which of the following is used for grouping of characters into tokens (in a computer)?

(A) A parser

(B) Code optimizer

(C) Code generator

(D) Scanner

Answer: D

36.       Match the following:

Set-I

(a) Disk scheduling

(b) Batch processing

(c) Time sharing

(d) Interrupt processing

Set-II

1. Round-robin

2. SCAN

3. LIFO

4. FIFO

Codes :

    (a) (b) (c) (d)

(A) 3   4   2   1

(B) 4   3   2   1

(C) 2   4   1   3

(D) 1   4   3   2

Answer: C

37.       ………….. synchronizes critical resources to prevent dead lock.

(A) P-operator

(B) V-operator

(C) Semaphore

(D) Swapping

Answer: C

38.       …………….. is one of pre-emptive scheduling algorithm.

(A) RR

(B) SSN

(C) SSF

(D) Priority based

Answer: A

39.       In order to allow only one process to enter its critical section, binary semaphore are initialized to

(A) 0

(B) 1

(C) 2

(D) 3

Answer: B

40.    Remote Computing Service involves the use of time sharing and …………..

(A) multi-processing

(B) interactive processing

(C) batch processing

(D) real-time processing

Answer: C

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