The number of components in a doubly linked list is

1. 1
2. 2
3. 3
4. 4

What is the output of the program?

    #include <stdio.h>
    void main()
    {
        unsigned short a = -4;              // Assume short is 2 bytes
        printf("\n %u", a);
    }

1. Error: Variable of type unsigned char cannot store negative values
2. 4
3. -4
4. 65532

Which of the following is a non-linear data structure?

1. Stack
2. Queue
3. Linked List
4. Tree

Function time (time_t*) is used to get the

1. current system time
2. time taken for the program to execute
3. file updation time
4. file creation time

Macros

1. Expands the code size
2. Perform dumb substitution
3. Reduce the speed of program execution
4. Both A and B

Which of the options helps the programmer in debugging a program?

1. Watch
2. Building a project
3. Conditional compilation
4. Both A and C

How can you correct improper naming of function?

1. By type defining the function
2. By declaring pointer to functions
3. By # defining the name
4. By redefining the function

Memory conservation is possible using

1. Unions
2. Static variables
3. Arrays
4. Bit fields

What is the output of the program?

    #include <stdio.h>
    #define MAX 20
    void  main()
    {
        printf("%d", ++MAX));
    }

1. No error, output is 20
2. No error, output is 21
3. Error: Define directive needs an identifier
4. Error: Lvalue required

What is the output of the program?

    #include <stdio.h>
    #define SQ(a) a*a

    void  main()
    {
        printf("%d", SQ(2+3));
    }

1. 11
2. 25
3. Error in compilation
4. 13

'C' language was developed to achieve

1. Portability
2. Modularity
3. Platform independence
4. Reusability

How many bytes are allocated for "int" declaration?

1. minimum 2
2. only 2
3. minimum 4
4. only 4

Which of the following data types has the same size irrespective of the operating system?

1. char*
2. int
3. float
4. char

What is the output of the program?

    #include <stdio.h>
    void main()
    {
        int m = (m = 1, m++, --m);
        printf("\n %d ", m);
    }

1. Error: undefined symbol 'm'
2. 2
3. 1
4. 3

What is the output of the program?

    #include <stdio.h>
    void main()
    {
        printf("%d", sizeof(int) ? 1 ? 2 : 3 ? 4 : 5);
    }

1. Error: Lvalue required
2. syntax error: missing : before )
3. 2
4. 3

A switch statement is similar to

1. while
2. do - while
3. multiple if - else if - else
4. for

Which of the following function returns an integer data type?

1. strncpy
2. strcmp
3. strstr
4. strcat

Which of the following statements is correct?

1. when a pointer is incremented by 1 the address contained in the pointer is incremented by 1
2. when a pointer is incremented by 1 the address contained in the pointer is incremented by size of integer
3. when a pointer is incremented by 1 the address contained in the pointer is incremented according to the type of pointer
4. when a pointer is incremented by 1 the address contained in the pointer is incremented according to the type it is pointing to

What is the output of the program?

    #include <stdio.h>
   
    void main()
    {
        static int a[] = {5, 10, 15, 20};
        int* ptr = a;
        int** ptr_ptr = &ptr;
        printf("\n %d",**ptr_ptr++);
    }

1. 5
2. 10
3. 15
4. 20

The compiler evaluates the operator '*' as either a pointer indirection or multiplication based on

1. the operator precedence
2. the number of operands
3. the type of operands
4. its location in the source code