UGC Net Computer Science Paper 1 December 12 , Page 5-Solved

UGC Net Computer Science Paper 1 December 12 , Page 5-Solved

41. Which of the following can be done under conditions of financial emergency ?

1. State Legislative Assemblies can be abolished.

2. Central Government can acquire control over the budget and expenditure of States.

3. Salaries of the Judges of the High Courts and the Supreme Court can be reduced.

4. Right to Constitutional Remedies can be suspended. Select the correct answer from the codes given below :

Codes :

(A) 1, 2 and 3 

(B) 2, 3 and 4

(C) 1 and 2 

(D) 2 and 3
Answer D

UGC Net Computer Science Paper 1 December 12 , Page 4-Solved

UGC Net Computer Science Paper 1 December 12 , Page 4-Solved

31. Which of the following is a source of methane ?

(A) Wetlands

(B) Foam Industry

(C) Thermal Power Plants

(D) Cement Industry

Answer A

UGC Net Computer Science Paper 1 December 12 , Page 3-Solved

25. ALU stands for
(A) American Logic Unit
(B) Alternate Local Unit
(C) Alternating Logic Unit
(D) Arithmetic Logic Unit
Answer : D

26. A Personal Computer uses a number of chips mounted on a circuit board called

(A) Microprocessor

(B) System Board

(C) Daughter Board

(D) Mother Board

Answer : A

UGC Net Computer Science December-12 Paper 3 Page 3 Solved

UGC Net Computer Science December-12 Paper 3 Page 3 Solved

21. How many solutions do the following equation have

x1 + x2 + x3 = 11

where x1 ≥ 1, x2 ≥ 2, x3 ≥ 3

(A) C(7, 11)

(B) C(11, 3)

(C) C(14, 11)

(D) C(7, 5)

Answer D

Explanation :-

we can solve this problem by combinition with repetition.

so we need to put 11 similar balls into  x1,x2,x3 types of boxes.

different number of boxes are 3=n

x1≥1, x2≥2, x3≥3 now allocate 1,2,3 from 11 directly . so remaining  ball = 11-(1+2+3) = 5 =k

(n+k-1)Ck  = (3+5-1)C5 =7C5