C Quiz

Which of these is NOT a relational or logical operator?

• =

• ||

• ==

• !=

We cannot use the keyword ‘break’ simply within _________.

• while

• for

• if-else

• do-while

The global variables are ____________.

• External

• Internal

• Both External and Internal

• None

How is the 3rd element in an array accessed based on pointer notation?

• *a + 3

• *(a+3)

• *(*a+3)

• &(a+3)

What is the disadvantage of arrays in C?

• The amount of memory to be allocated should be known beforehand.

• Elements of an array can be accessed in constant time.

• Elements are stored in contiguous memory blocks.

• Multiple other data structures can be implemented using arrays.

   

What does the following declaration indicate?

int x: 8;

•     x stores a value of 8.

• x is an 8-bit integer.

• Both A and B.

• None

How to declare a double-pointer in C?

• int *val

•  int **val

• int &val

• int *&val

Which data structure is used to handle recursion in C?

• Stack

• Queue

• Deque

• Trees

What is the result after execution of the following code if a is 10, b is 5, and c is 10?

If ((a > b) && (a <= c))  

         a = a + 1;  

else  

         c = c+1;  

• a=11,c=11

• a=10,c=11

• a=11,c=10

• a=10,c=10

What is the output of the following code snippet?

int main() {

        int sum = 2 + 4 / 2 + 6 * 2;

        printf("%d", sum);

return 0;

}

• 2

• 15

• 18

• 16