NPTEL Problem Solving Through Programming in C Week 6 Quiz Assignment | NPTEL Swayam Assignment Answers
MCQs (multiple choice questions) Nptel Week 6 Quiz Answers:
Q.1: What is the right way to initialize an array in C? Options are:
a) int arr{}={1,2, 5,6,9}
b) int arr[5]={1,2, 5,6,9}
c) int arr{5}={1,2, 5,6,9}
d) int arr()={1,2, 5,6,9}
Answer is (b) int arr[5]={1,2, 5,6,9}
Q.2: An integer array of size 10 is declared in a C program. The memory location of the first byte of the array is 1000. What will be the location of the 9th element of the array? (Assume integer takes 4 bytes of memory and the element stored at 1000 is identified as 1st element). Options are:
a) 1028
b) 1032
c) 1024
d) 1036
Answer is (b) 1032
Q.3: What will be the output after execution of the program?
#include<stdio.h>
int main()
{
int i, a[4] ={3,1,2,4}, result;
result = a[0];
for(i=1; i<4; i++)
{
if(result<a[i])
continue;
result = a[i];
}
printf("%d", result);
return 0;
}
Options are:
a) 1
b) 2
c) 3
d) 4
Answer is (a) 1
Q.4: Which of the statements is correct? Options are:
a) An array contains more than one element
b) All elements of array has to be of same data type
c) The size of array has to be declared upfront
d) All of the above
Answer is (d) All of the above
Q.5: What actually gets passed when you pass an array as an argument to a function ? Options are:
a) Value of elements in array
b) First element of the array
c) Base address of the array
d) Address of the last element of array
Answer is (c) Base address of the array
Q.6: Find the output of the following C Program?
#include<stdio.h>
int main()
{
int a;
int arr[5] = {1,2,3,4,5};
arr[1] =++arr[1];
a = arr[1]++;
arr[1] = arr[a++];
printf("%d, %d", a, arr[1]);
return 0;
}
Options are:
a) 5, 4
b) 5, 5
c) 4, 4
d) 3, 4
Answer is (c) 4, 4
Q.7: What will be the output?
#include<stdio.h>
int main()
{
int p;
int arr[10]={1,2,3,4,5,6,9,10};
p=(arr+1)[5];
printf("%d",p);
return 0;
}
Options are:
a) 5
b) 6
c) 9
d) 10
Answer is (c) 9
Q.8: An array of the void data type. Options are:
a) can store any data-type
b) only stores element of similar data type to first element
c) acquires the data type with the highest precision in it
d) It is not possible have an array of void data type
Answer is (d) It is not possible have an array of void data type
Q.9: What will be the output?
#include<stdio.h>
int main()
{
int n = 3;
int sum = 4;
switch(n)
{
case 2: sum = sum-2;
case 3: sum*=5;
break;
default:
sum = 0;
}
printf("%d", sum);
return 0;
}
Answer is: 20
Q.10: How many ‘a’ will be printed when following code will be executed?
#include <stdio.h>
int main()
{
int i = 0;
char c = 'a';
while (i <5)
{
i++;
switch (c)
{
case 'a':
printf("%c ", c);
break;
}
}
printf("\n");
return 0;
}
Answer is : 6
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