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    • C Quiz - 103

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    Question 1

    "Why is the & (address-of) operator used with scanf() when reading integer values?

    • A

      To specify the format of the input.

    • B

      To store the input at the variable’s memory address.

    • C

      To perform pointer arithmetic.

    • D

      It is optional and does not affect the function’s behavior.

    Question 2

    For a given integer, which of the following operators can be used to “set” and “reset” a particular bit respectively?
    • A
      | and &
    • B
      && and ||
    • C
      & and |
    • D
      || and &&

    Question 3

    What’s going to happen when we compile and run the following C program snippet? C 
    #include "stdio.h"
int main()
{
 int a = 10;
 int b = 15;

 printf("=%d",(a+1),(b=a+2));
 printf(" %d=",b);

 return 0;
}
    • A
      =11 15=
    • B
      =11 12=
    • C
      Compiler Error due to (b=a+2) in the first printf().
    • D
      No compile error but output would be =11 X= where X would depend on compiler implementation.

    Question 4

    What’s going to happen when we compile and run the following C program snippet?

    C 
    #include <stdio.h>
int main()
{
 int a = 10;

 printf("=%d %d=",(a+1));

 return 0;
}
    • A

      =11 0=

    • B

      =11 X= where X would depend on Compiler implementation

    • C

      Undefined behavior

    • D

      Compiler Error due to missing argument for second %d

    Question 5

    As per C language standard, which of the followings is/are not keyword(s)? Pick the best statement. auto make main sizeof elseif

    • A

      sizeof elseif make

    • B

      make main elseif

    • C

      make main

    • D

      auto make

    • E

      None of the above is keywords in C.

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    C Quiz

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