CBSE-NET (UGC) Computer Science (Paper-II & Paper-III): Questions 19 - 22 of 582

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Question number: 19

» Programming » Output Related Questions

Appeared in Year: 2015

MCQ▾

Question

Consider the following program:

  1. #include<stdio.h>
  2. main()
  3. {
  4.     int iinp;
  5.     float xterm=1sum=0;
  6.     scanf(“%d %f”,&inp, &x);
  7.     for(i=1;i<=inp;i++)
  8.     {
  9.         term=term*x/i;
  10.         sum=sum+term;
  11.     }
  12.     printf(“Result=%fn”,sum);
  13. }

The program computes the sum of which of the following series?

Choices

Choice (4) Response

a.

x + x2/2 + x3/3 + x4/4 + …

b.

x + x2/2! +x3/3! +x4/4! +…

c.

1 + x2/2 + x3/3 + x4/4 + …

d.

1 + x2/2! +x3/3! +x4/4! +…

Question number: 20

» Discrete Structures » Graph » Spanning Trees

Appeared in Year: 2015

MCQ▾

Question

A tree with n vertices is called graceful, if its vertices can be labelled with integers 1, 2, …, n such that the absolute value of the difference of the labels of adjacent vertices are all different. Which of the following trees are graceful?

Labelling of Graceful Graphs

Labelling of Graceful Graphs

Finding which trees are graceful

Choices

Choice (4) Response

a.

(a) and (b)

b.

(a) and (c)

c.

(b) and (c)

d.

(a), (b) and (c)

Question number: 21

» Discrete Mathematics » Permutation and Combination

Appeared in Year: 2015

MCQ▾

Question

How many committees of five people can be chosen from 20 men and 12 women such that each committee contains at least three women? (December)

Choices

Choice (4) Response

a.

75240

b.

52492

c.

9900

d.

41800

Question number: 22

» Operating Systems With Unix » Unix System » Unix Commands, Interfacing With Unix

Appeared in Year: 2015

MCQ▾

Question

In Unix, the login prompt can be changed by changing the contents of the file …………… (December)

Choices

Choice (4) Response

a.

gettydefs

b.

init

c.

inittab

d.

contrab

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