C Language Quiz

(Total Question : 57)

Q.1

Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?

A. rem = 3.14 % 2.1;

B. rem = modf(3.14, 2.1);

C. rem = fmod(3.14, 2.1);

D. Remainder cannot be obtain in floating point division.

Q.2

What are the types of linkages?

A. Internal and External

B. External, Internal and None

C. External and None

D. Internal

Q.3

Which of the following special symbol allowed in a variable name?

A. * (asterisk)

B. | (pipeline)

C. - (hyphen)

D. _ (underscore)

Q.4

Is there any difference between following declarations?
1 : extern int fun();
2 : int fun();

A. Both are identical

B. No difference, except extern int fun(); is probably in another file

C. int fun(); is overrided with extern int fun();

D. None of these

Q.5

How would you round off a value from 1.66 to 2.0?

A. ceil(1.66)

B. floor(1.66)

C. roundup(1.66)

D. roundto(1.66)

Q.6

By default a real number is treated as a

A. float

B. double

C. long double

D. far double

Q.7

When we mention the prototype of a function?

A. Defining

B. Declaring

C. Prototyping

D. Calling

Q.8

A long double can be used if range of a double is not enough to accommodate a real number.

A. True

B. False

Q.9

A float is 4 bytes wide, whereas a double is 8 bytes wide.

A. True

B. False

Q.10

If the definition of the external variable occurs in the source file before its use in a particular function, then there is no need for an extern declaration in the function.

A. True

B. False

Q.11

How many times \"tutorial44\" is get printed?

#include<stdio.h>
int main()
{
    int x;
    for(x=-1; x<=10; x++)
    {
        if(x < 5)
            continue;
        else
            break;
        printf(\"tutorial44\");
    }
    return 0;
}

A. Infinite times

B. 11 times

C. 0 times

D. 10 times

Q.12

How many times the while loop will get executed if a short int is 2 byte wide?

#include<stdio.h>
int main()
{
    int j=1;
    while(j <= 255)
    {
        printf(\"%c %d\\n\", j, j);
        j++;
    }
    return 0;
}

A. Infinite times

B. 255 times

C. 256 times

D. 254 times

Q.13

Which of the following is not logical operator?

A. &

B. &&

C. ||

D. !

Q.14

In mathematics and computer programming, which is the correct order of mathematical operators ?

A. Addition, Subtraction, Multiplication, Division

B. Division, Multiplication, Addition, Subtraction

C. Multiplication, Addition, Division, Subtraction

D. Addition, Division, Modulus, Subtraction

Q.15

Which of the following cannot be checked in a switch-case statement?

A. Character

B. Integer

C. Float

D. enum

Q.16

What will be the output of the program?

#include<stdio.h>
int main()
{
    int i=0;
    for(; i<=5; i++);
        printf(\"%d\", i);
    return 0;
}

A. 0, 1, 2, 3, 4, 5

B. 1, 2, 3, 4

C. 6

D. 5

Q.17

What will be the output of the program?

#include<stdio.h>
int main()
{
    unsigned int i = 65535; /* Assume 2 byte integer*/
    while(i++ != 0)
        printf(\"%d\",++i);
    printf(\"\\n\");
    return 0;
}

A. Infinite loop

B. 0 1 2 ... 32767 - 32766 -32765 -1 0

C. 0 1 2 ... 65535

D. No output

Q.18

A short integer is at least 16 bits wide and a long integer is at least 32 bits wide.

A. True

B. False

Q.19

If scanf() is used to store a value in a char variable then along with the value a carriage return(\\r) also gets stored it.

A. True

B. False

Q.20

The modulus operator cannot be used with a long double.

A. True

B. False

Q.21

Which of the following correctly shows the hierarchy of arithmetic operations in C?

A. / + * -

B. * - / +

C. + - / *

D. / * + -

Q.22

The keyword used to transfer control from a function back to the calling function is

A. switch

B. goto

C. go back

D. return

Q.23

How many times the program will print "tutorial44" ?

#include<stdio.h>int main(){    printf("tutorial44");    main();    return 0;}

A. Infinite times

B. 42767 times

C. 75535 times

D. Till stack overflows

Q.24

A function cannot be defined inside another function

A. True

B. False

Q.25

Functions cannot return more than one value at a time

A. True

B. False

Q.26

If return type for a function is not specified, it defaults to int

A. True

B. False

Q.27

In C all functions except main() can be called recursively.

A. True

B. False

Q.28

Functions can be called either by value or reference

A. True

B. False

Q.29

Functions cannot return a floating point number

A. Yes

B. No

Q.30

Every function must return a value

A. Yes

B. No

Q.31

What is (void*)0?

A. Representation of NULL pointer

B. Representation of void pointer

C. Error

D. None of above

Q.32

In which header file is the NULL macro defined?

A. stdio.h

B. stddef.h

C. stdio.h and stddef.h

D. math.h

Q.33

How many bytes are occupied by near, far and huge pointers (DOS)?

A. near=2 far=4 huge=4

B. near=4 far=8 huge=8

C. near=2 far=4 huge=8

D. near=4 far=4 huge=8

Q.34

Are the expression ptr++ and ++ptr are same?

A. True

B. False

Q.35

Are the three declarations char **apple, char *apple[], and char apple[][] same?

A. True

B. False

Q.36

What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array?

A. The element will be set to 0.

B. The compiler would report an error.

C. The program may crash if some important data gets overwritten

D. The array size would appropriately grow.

Q.37

How will you free the allocated memory ?

A. remove(var-name);

B. free(var-name);

C. delete(var-name);

D. dalloc(var-name);

Q.38

In C, if you pass an array as an argument to a function, what actually gets passed?

A. Value of elements in array

B. First element of the array

C. Address of the last element of array

D. Base address of the array

Q.39

A pointer to a block of memory is effectively same as an array

A. True

B. False

Q.40

Does this mentioning array name gives the base address in all the contexts?

A. Yes

B. No

Q.41

Are the expressions arr and &arr same for an array of 10 integers?

A. Yes

B. No

Q.42

What is the similarity between a structure, union and enumeration?

A. All of them let you define new values

B. All of them let you define new data types

C. All of them let you define new pointers

D. All of them let you define new structures

Q.43

Point out the error in the program?

struct emp
{
    int ecode;
    struct emp *e;
};

A. Error: in structure declaration

B. Linker Error

C. No Error

D. None of above

Q.44

A union cannot be nested in a structure

A. True

B. False

Q.45

Nested unions are allowed

A. True

B. False

Q.46

one of elements of a structure can be a pointer to the same structure.

A. True

B. False

Q.47

A structure can be nested inside another structure.

A. True

B. False

Q.48

size of union is size of the longest element in the union

A. Yes

B. No

Q.49

The elements of union are always accessed using & operator

A. Yes

B. No

Q.50

A pointer union CANNOT be created

A. Yes

B. No

Q.51

A function returns a value, whereas a subroutine cannot return a value.

A. True

B. False

Q.52

How many values is a subroutine capable of returning?

A. Depends upon how many params arguments does it use.

B. Any number of values.

C. Depends upon how many ref arguments does it use.

D. 0

Q.53

Which of the following CANNOT occur multiple number of times in a program?

A. namespace

B. Entrypoint

C. Class

D. Function

Q.54

A function can be used in an expression, whereas a subroutine cannot be.

A. True

B. False

Q.55

The this reference gets created when a member function (non-shared) of a class is called.

A. True

B. False

Q.56

Which of the following statements is correct about classes and objects in C#.NET?

A. Class is a value type.

B. Since objects are typically big in size, they are created on the stack.

C. Objects of smaller size are created on the heap.

D. Objects are always nameless.

Q.57

Can static procedures access instance data?

A. Yes

B. No

Related Quiz

C Language Quiz

Q.1

Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?

Q.2

What are the types of linkages?

Q.3

Which of the following special symbol allowed in a variable name?

Q.4

Is there any difference between following declarations? 1 : extern int fun(); 2 : int fun();

Q.5

How would you round off a value from 1.66 to 2.0?

Q.6

By default a real number is treated as a

Q.7

When we mention the prototype of a function?

Q.8

A long double can be used if range of a double is not enough to accommodate a real number.

Q.9

A float is 4 bytes wide, whereas a double is 8 bytes wide.

Q.10

If the definition of the external variable occurs in the source file before its use in a particular function, then there is no need for an extern declaration in the function.

Q.11

How many times \"tutorial44\" is get printed? #include<stdio.h> int main() { int x; for(x=-1; x<=10; x++) { if(x < 5) continue; else break; printf(\"tutorial44\"); } return 0; }

Q.12

How many times the while loop will get executed if a short int is 2 byte wide? #include<stdio.h> int main() { int j=1; while(j <= 255) { printf(\"%c %d\\n\", j, j); j++; } return 0; }

Q.13

Which of the following is not logical operator?

Q.14

In mathematics and computer programming, which is the correct order of mathematical operators ?

Q.15

Which of the following cannot be checked in a switch-case statement?

Q.16

What will be the output of the program? #include<stdio.h> int main() { int i=0; for(; i<=5; i++); printf(\"%d\", i); return 0; }

Q.17

What will be the output of the program? #include<stdio.h> int main() { unsigned int i = 65535; /* Assume 2 byte integer*/ while(i++ != 0) printf(\"%d\",++i); printf(\"\\n\"); return 0; }

Q.18

A short integer is at least 16 bits wide and a long integer is at least 32 bits wide.

Q.19

If scanf() is used to store a value in a char variable then along with the value a carriage return(\\r) also gets stored it.

Q.20

The modulus operator cannot be used with a long double.

Q.21

Which of the following correctly shows the hierarchy of arithmetic operations in C?

Q.22

The keyword used to transfer control from a function back to the calling function is

Q.23

How many times the program will print "tutorial44" ? #include<stdio.h>int main(){ printf("tutorial44"); main(); return 0;}

Q.24

A function cannot be defined inside another function

Q.25

Functions cannot return more than one value at a time

Q.26

If return type for a function is not specified, it defaults to int

Q.27

In C all functions except main() can be called recursively.

Q.28

Functions can be called either by value or reference

Q.29

Functions cannot return a floating point number

Q.30

Every function must return a value

Q.31

What is (void*)0?

Q.32

In which header file is the NULL macro defined?

Q.33

How many bytes are occupied by near, far and huge pointers (DOS)?

Q.34

Are the expression *ptr++ and ++*ptr are same?

Q.35

Are the three declarations char **apple, char *apple[], and char apple[][] same?

Q.36

What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array?

Q.37

How will you free the allocated memory ?

Q.38

In C, if you pass an array as an argument to a function, what actually gets passed?

Q.39

A pointer to a block of memory is effectively same as an array

Is there any difference between following declarations?
1 : extern int fun();
2 : int fun();

How many times \"tutorial44\" is get printed?

`#include<stdio.h> int main() { int x; for(x=-1; x<=10; x++) { if(x < 5) continue; else break; printf(\"tutorial44\"); } return 0; }`

How many times the while loop will get executed if a short int is 2 byte wide?

`#include<stdio.h> int main() { int j=1; while(j <= 255) { printf(\"%c %d\\n\", j, j); j++; } return 0; }`

What will be the output of the program?

`#include<stdio.h> int main() { int i=0; for(; i<=5; i++); printf(\"%d\", i); return 0; }`

What will be the output of the program?

`#include<stdio.h> int main() { unsigned int i = 65535; /* Assume 2 byte integer*/ while(i++ != 0) printf(\"%d\",++i); printf(\"\\n\"); return 0; }`

How many times the program will print "tutorial44" ?
`#include<stdio.h>int main(){ printf("tutorial44"); main(); return 0;}`

Are the expression ptr++ and ++ptr are same?

Point out the error in the program?
`struct emp { int ecode; struct emp *e; };`