MCQ C Plus Plus First Set

2010

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Suresh Khanal

[C++ MULTIPLE CHOICE QUESTIONS BANK]

This is the first set of the series of C++ Multiple Choice Question Bank. I have presented selected 25 questions and the correct answers are at the end.

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Multiple Choice Questions

Programming Language

and

C/C++

http://www.psExam.com C++ Multiple Choice Questions Bank

1


Question 1:

The break statement is used to exit from

a. a DO loop

b. a FOR loop

c. a SWITCH statement

d. all of above

e. none of above

Question 2:

In which statements, does a CONTINUE statement cause the control to go

directly to the test condition and then continue the looping process?

a. FOR and WHILE

b. WHILE and IF-ELSE

c. DO-WHILE and IF-ELSE

d. While and DO-WHILE

e. None of above

Question 3:

The advantage of a SWITCH statement over an ELSE-IF statement

a. A default condition can be used in the SWITCH

b. The SWITCH is easier to understand

c. Several different condition can cause one set of statements to be executed in

a SWITCH

d. Several different statements can be executed in a SWITCH

e. None of above


2


Question No 4

The comma operator (,) is primarily used in conjunction with

FOR statement

IF-ELSE statement

DO-While statement

d. All of above

e. None of above

Question No 5

The GOTO statement is used to

a. Permit two different expressions to appear in situation where only one

expression would ordinarily used

b. Terminate loops or to exit from a switch

c. Alter the normal sequence or program execution by transferring control to

some other part of the program

d. Carry out a logical test and then take one of two possible actions, depending

upon the outcome of a test

e. None of above

Question No 6

a. The CONTINUE statement is used to

b. Permit two different expressions to appear in situation where only one

expression would ordinarily be used

c. Terminate loops or exit from a switch

d. Alter the normal sequence of program execution by transforming control to

some other part of the program

e. All of above

f. None of above


3


Question No 7

The traditional way to create an infinite loop in C is

a. FOR ( ; ; )…

b. IF (=) BREAK;

c. WHILE ()…

d. All of above

e. None of above

Question No 8

The difference between the declaraction of an external variable and its

definition is

a. A declaration causes storage space to be allocated to variable while a

definition announces variable’s properties

b. A declaration announces the properties of a variable while a definition also

causes storage to be allocated

c. A declaration announces the properties of a variable while definition only

causes storage to be allocated

d. A declaration uses storage space to be allocated to variable while a definition

also announce its properties.

e. None of above

Question No 9

The comma operator (,) is used to

a. Permit to different expressions to appear in situation where only one

expression would ordinarily be used

b. Terminate loops or to exit from switch

c. Alter the normal sequence of program execution by transferring control to

some other parts of the program


4


d. Carry out the logical test and then take one of two possible actions, depending

upon the outcome of the test

e. None of above

Question No 10

The recursive form of algebraic formula

y=(x1 + x2 + …+xn) is

a. Y = x + n-1 xi i=1

b. Y= xn + n xi i=1

c. Y=xn+xi

d. Y = xn + n-1 i=1 xi

e. None of above

Question No 11

Which one of the following, is a storage class specification in C?

a. Automatic

b. External

c. Static

d. All of above

e. None of above

Question No 12

Given these variables

char ch;

short i;

unsigned long ul;

float f;


5


The overall type of this expression is

a. Char

b. Unsigned

c. Float

d. Double

e. None of above

Question No 13

What will this program display?

#include <stdio.h>

main()

{

float f;

f=10/3;

printf ("%f",f);

}

a. 3.3

b. 3.0

c. 3

d. 3.1

e. None of above

Question No 14

The most common use of the one-dimentional array in C is the

a. String

b. Character

c. Data

d. Functions


6


e. None of above

Question No 15

The string related function supplied by C standard library is

a. strcpy()

b. strcat()

c. strcmp()

d. All of above

e. None of above

Question No 16

Find out the incorrect statement for strlen() function

a. Returns the length of a string

b. Does not count the null terminator

c. Has general form strlen();

d. All of above

e. None of above

Question No 17

C provides loop constructs for performing loop operations. They are

a. The WHILE statement

b. The DO statement

c. The FOR statement

d. All of above

e. None of above


7


Question No 18

Arrays that do not have their dimensions explicitly specified are called

a. Unsized arrays

b. Undimensional arrays

c. Initialized arrays

d. No size of arrays

e. None of above

Question No 19

What is wrong with the given fragment?

a. The size of the array is not specified

b. Declaration must have float in place of int

c. The list must be enclosed between curly braces

d. All of the above

e. None of the above.

Question No 20

A variable that holds the memory address of another object is called a

a. integer

b. pointer

c. constant

d. memory variable


Question No 21

C contains two special pointer operators:


8


a. * and &

b. * and &&

c. & and &&

d. % and &


Question No 22

In C, the address of m's memory location can determined by the

expression

a. *m

b. m&

c. &m

d. m*


Question No 23

Main() is an example of

a. library function

b. user-defined function

c. header

d. statement

e. None of the above,

Question No 24

The header file 'ctype.h' can be used for

a. providing links to assembly language for calls

b. providing diagnostic and debugging assistance


9


c. providing support for string handling functions

d. providing character type identification (boolean) and translation


Question No 25.

The header file 'math.h* can be used for

a. providing links to assembly language for calls

b. providing diagnostic and debugging assistance

c. providing support for string handling functions

d. All of the above



10


Answers:

1. (d) 2. (d) 3. (b) 4. (a) 5. (d) 6. (c)

7. (a) 8. (a) 9. (6) 10. (d) 11. (a) 12. (c)

13. (a) 14. (c) 15. (e) 16. (a) 17. (b) 18. (a)

19. (d) 20. (d) 21. (c) 22. (b) 23. (a) 24. (d)

25. (e)

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