R4RIN – MCQs, Mock Tests | C/C C (CPP) MCQ Question with Answer

Delaration a pointer more than once may cause ____

1. Error
2. Abort
3. Trap
4. Null

✅ Correct Answer: 3

Which one is not a correct variable type in C++?

1. float
2. real
3. int
4. double

✅ Correct Answer: 2

Which operation is used as Logical 'AND'

1. Operator-&
2. Operator-||
3. Operator-&&
4. Operator +

✅ Correct Answer: 3

An expression A.B in C++ means ____

1. A is member of object B
2. B is member of Object A
3. Product of A and B
4. None of these

✅ Correct Answer: 2

A C++ code line ends with ___

1. A Semicolon (;)
2. A Fullstop(.)
3. A Comma ()
4. A Slash (/)

✅ Correct Answer: 1

___ function is used to allocate space for array in memory.

1. malloc()
2. realloc()
3. alloc()
4. calloc

✅ Correct Answer: 4

A ponter pointing to a variable that is not initialized is called ____

1. Void Pointer
2. Null Pointer
3. Empty Pointer
4. Wild Pointer

✅ Correct Answer: 2

Default constructor has ____ arguments.

1. No argument
2. One Argument
3. Two Argument
4. None of these

✅ Correct Answer: 1

A class whos objects can not be created is known as _____

1. Absurd Class
2. Dead Class
3. Super Class
4. Abstract Class

✅ Correct Answer: 4

Which class allows only one object to be created.

1. Nuclear Family Class
2. Abstruct Class
3. Sigleton Class
4. Numero Uno Class

✅ Correct Answer: 3

Reusability of code in C++ is achieved through ___

1. Polymorphism
2. Inheritance
3. Encapsulation
4. Both A and B

✅ Correct Answer: 2

In CPP members of a class are ______ by default.

1. Public
2. Private
3. Protected
4. Static

✅ Correct Answer: 2

In C++ Program inline fuctions are expanded during ____

1. Run Time
2. Compile Time
3. Debug Time
4. Coding Time

✅ Correct Answer: 1

To perfor file input / output operation in C++ we must include which header file ?

1. <fiostream>
2. <ifstream>
3. <ofstream>
4. <fstream>

✅ Correct Answer: 4

An exceptio in C++ can be generated using which keywords.

1. thrown
2. threw
3. throw
4. throws

✅ Correct Answer: 3