Questions and answers for exam Preparation

MCQs

Total Questions : 29 | Page 2 of 3 pages

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample friday tuesday sunday

/* sample.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
printf("%c", *++argv[2] );
return 0;
}

Discuss Question

Answer: Option C. -> u

Question 12.

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample friday tuesday sunday

/* sample.c */
#include<stdio.h>
int main(int sizeofargv, char *argv[])
{
while(sizeofargv)
printf("%s", argv[--sizeofargv]);
return 0;
}

sample friday tuesday sunday
sample friday tuesday
sunday tuesday friday sample
sunday tuesday friday

Discuss Question

Answer: Option C. -> sunday tuesday friday sample

Question 13.

If the following program (myproc.c) is present in the directory "C:TC" then what will be output of the program if run it from DOS shell?

/* myproc.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
printf("%s", argv[0]);
return 0;
}

SAMPLE.C
C:TCMYPROC.EXE
C:TC
Error

Discuss Question

Answer: Option B. -> C:TCMYPROC.EXE

In order to execute it from DOS shell, we have to run the created EXE file by

entering the exe file name as C:TC>myproc <enter>.

Question 14.

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample 1 2 3
cmd> sample 2 2 3
cmd> sample 3 2 3

/* sample.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
printf("%s\n", argv[0]);
return 0;
}

sample 3 2 3
sample 1 2 3
sample
Error

Discuss Question

Answer: Option C. -> sample

Question 15.

What will be the output of the program (myprog.c) given below if it is executed from the command line?
cmd> myprog one two three

/* myprog.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
int i;
for(i=1; i

Discuss Question

Answer: Option B. -> ott

Question 16.

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample monday tuesday wednesday thursday

/* sample.c */
#include<stdio.h>
#int main(int argc, char *argv[])
{
while(--argc>0)
printf("%s", *++argv);
return 0;
}

sample monday tuesday wednesday thursday
monday tuesday wednesday thursday
monday tuesday thursday
tuesday

Discuss Question

Answer: Option B. -> monday tuesday wednesday thursday

Question 17.

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample Jan Feb Mar

/* sample.c */
#include<stdio.h>
#include<dos.h>
int main(int arc, char *arv[])
{
int i;
for(i=1; i

No output
sample Jan Feb Mar
Jan Feb Mar
Error

Discuss Question

Answer: Option C. -> Jan Feb Mar

Question 18.

What will be the output of the program (myprog.c) given below if it is executed from the command line?
cmd> myprog friday tuesday sunday

/* sample.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
printf("%c", *++argv[1]);
return 0;
}

Discuss Question

Answer: Option A. -> r

Question 19.

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample friday tuesday sunday

/* sample.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
printf("%c", **++argv);
return 0;
}

s
f
sample
friday

Discuss Question

Answer: Option B. -> f

Question 20.

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample one two three

/* sample.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
int i=0;
i+=strlen(argv[1]);
while(i>0)
{
printf("%c", argv[1][--i]);
}
return 0;
}