Programming in C++ Online Test 1 – Randomized MCQs

With each visit of this Programming in C++ online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.

Test Instructions
Question type	Randomized MCQs.Changes every time you visit the test
Total Number of Questions	30
Time Limit	20 Minutes
Points	1 Point for each Question

Remaining Time: 0 MINUTES

Test Summary

0 of 30 questions completed

Questions:

Information

You have already completed the test before. Hence you can not start it again.

Test is loading...

Results

0 of 30 questions answered correctly

Your time:

Time has elapsed

You have reached 0 of 0 points, (0)

Answered
Review

Question 1 of 30

Q-1.Data members which are static

cannot be assigned a value

can only be used in static functions

cannot be defined in a Union

can be accessed outside the class

Your Answer:Correct

Your Answer:Incorrect

Question 2 of 30

Q-2.If x = y,5 = 2 then x ∧ y equals________. (where ∧ is a bitwise XOR operator)

00000111

10000010

10100000

11001000

Your Answer:Correct

Your Answer:Incorrect

Question 3 of 30

Q-3.A copy constructor takes

no argument

one argument

two arguments

arbitrary no. of arguments

Your Answer:Correct

Your Answer:Incorrect

Question 4 of 30

Q-4.A friend function to a class, C cannot access

private data members and member functions.

public data members and member functions.

protected data members and member functions.

the data members of the derived class of C.

Your Answer:Correct

Your Answer:Incorrect

Question 5 of 30

Q-5.Which of the following operator can be overloaded through friend function?

( )

Your Answer:Correct

Your Answer:Incorrect

Question 6 of 30

Q-6.The keyword friend does not appear in

the class allowing access to another class.

the class desiring access to another class.

the private section of a class.

the public section of a class.

Your Answer:Correct

Your Answer:Incorrect

Question 7 of 30

Q-7.In C++, dynamic memory allocation is accomplished with the operator ____

new

this

malloc( )

delete

Your Answer:Correct

Your Answer:Incorrect

Question 8 of 30

Q-8.The major goal of inheritance in c++ is:

To facilitate the conversion of data types.

To help modular programming.

To extend the capabilities of a class.

To hide the details of base class.

Your Answer:Correct

Your Answer:Incorrect

Question 9 of 30

Q-9.How many constructors can a class have?

any number

Your Answer:Correct

Your Answer:Incorrect

Question 10 of 30

Q-10.Consider the following statements char *ptr; ptr = “hello”; cout << *ptr; What will be printed?

first letter

entire string

it is a syntax error

last letter

Your Answer:Correct

Your Answer:Incorrect

Question 11 of 30

Q-11.Member functions, when defined within the class specification:

are always inline.

are not inline.

are inline by default, unless they are too big or too complicated.

are not inline by default.

Your Answer:Correct

Your Answer:Incorrect

Question 12 of 30

Q-12.Consider the following class definitions: class a { }; class b: protected a { }; What happens when we try to compile this class?

Will not compile because class body of a is not defined.

Will not compile because class body of b is not defined

Will not compile because class a is not public inherited

Will compile successfully.

Your Answer:Correct

Your Answer:Incorrect

Question 13 of 30

Q-13.What will be the output of the following program? #include iostream.h void main() { float x=5,y=2; int result; result=x % y; cout result; }

1.0

Error message

2.5

Your Answer:Correct

Your Answer:Incorrect

Question 14 of 30

Q-14.The process of building new classes from existing one is called

Structure

Inheritance

Polymorphism

Template

Your Answer:Correct

Your Answer:Incorrect

Question 15 of 30

Q-15.What is the error in the following code? class t { virtual void print(); }

No error.

Function print() should be declared as static.

Function print() should be defined.

Class t should contain data members.

Your Answer:Correct

Your Answer:Incorrect

Question 16 of 30

Q-16.Declaration of a pointer reserves memory space

for the object.

for the pointer.

both for the object and the pointer.

none of these.

Your Answer:Correct

Your Answer:Incorrect

Question 17 of 30

Q-17.Additional information sent when an exception is thrown may be placed in

the throw keyword.

the function that caused the error.

the catch block.

an object of the exception class.

Your Answer:Correct

Your Answer:Incorrect

Question 18 of 30

Q-18.Function templates can accept

any type of parameters

only one parameter

only parameters of the basic type

only parameters of the derived type

Your Answer:Correct

Your Answer:Incorrect

Question 19 of 30

Q-19.A static function

should be called when an object is destroyed.

is closely connected with and individual object of a class.

can be called using the class name and function name.

is used when a dummy object must be created.

Your Answer:Correct

Your Answer:Incorrect

Question 20 of 30

Q-20.What will be the values of x, m and n after the execution of the following statements? int x, m, n; m = 10; n = 15; x = ++m + n++;

x=25, m=10, n=15

x=26, m=11, n=16

x=27, m=11, n=16

x=27, m=10, n=15

Your Answer:Correct

Your Answer:Incorrect

Question 21 of 30

Q-21.Which of the following cannot be legitimately passed to a function

A constant.

A variable.

A structure.

A header file.

Your Answer:Correct

Your Answer:Incorrect

Question 22 of 30

Q-22.Which of the following statements are true in c++?

Classes can not have data as public members.

Structures can not have functions as members.

Class members are public by default.

None of these.

Your Answer:Correct

Your Answer:Incorrect

Question 23 of 30

Q-23.The break statement causes an exit

from the innermost loop only.

only from the innermost switch.

from all loops & switches.

from the innermost loop or switch.

Your Answer:Correct

Your Answer:Incorrect

Question 24 of 30

Q-24.To access the public function fbase() in the base class, a statement in a derived class function fder() uses the statement.fbase();

fbase();

fder();

base::fbase();

der::fder();

Your Answer:Correct

Your Answer:Incorrect

Question 25 of 30

Q-25.An exception is caused by

a runtime error.

a syntax error.

a problem in the operating system.

a hardware problem.

Your Answer:Correct

Your Answer:Incorrect

Question 26 of 30

Q-26.If a base class destructor is not virtual, then

It can not have a function body.

It can not be called.

It can not be called when accessed from pointer.

Destructor in derived class can not be called when accessed through a pointer to the base class.

Your Answer:Correct

Your Answer:Incorrect

Question 27 of 30

Q-27.To perform stream I/O with disk files in C++, you should

open and close files as in procedural languages

use classes derived from ios

use C language library functions to read and write data.

include the IOSTREAM.H header file.

Your Answer:Correct

Your Answer:Incorrect

Question 28 of 30

Q-28.Which of the following statement is valid?

We can create new C++ operators.

We can change the precedence of the C++ operators.

We can change the associativity of the C++ operators.

We can not change operator templates.

Your Answer:Correct

Your Answer:Incorrect

Question 29 of 30

Q-29.If a class C is derived from class B, which is derived from class A, all through public inheritance, then a class C member function can access

protected and public data only in C and B.

protected and public data only in C.

private data in A and B.

protected data in A and B.

Your Answer:Correct

Your Answer:Incorrect

Question 30 of 30

Q-30.The operator << when overloaded in a class

must be a member function

must be a non member function

can be both (A) & (B) above

cannot be overloaded

Your Answer:Correct

Your Answer:Incorrect

Practice More Online Tests

Programming in C++ Online Test 1 – Randomized MCQs

Programming in C++ Online Test 1 – Randomized MCQs

Test Summary

Information

Results

Practice More Online Tests

You may be Interested In

Programming In C Online Test 1 – Randomized MCQs

Digital Electronics Online Test 1 – Randomized MCQs

📢 Share This Post: