C++ miscellaneous MCQ question and answer with solution

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Each section contains 100 MCQs on C plus plus miscellaneous .

What is the purpose of the volatile keyword in C++?

A) To specify that a variable's value cannot be changed once initialized B) To indicate that a variable may be changed unexpectedly by hardware or another thread C) To specify that a function cannot be overridden D) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following is not a valid C++ standard library container?

A) queue B) deque C) ArrayList D) vector

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the const keyword in C++?

A) To indicate that a variable may be changed unexpectedly by hardware or another thread B) To indicate that a variable cannot be modified C) To specify that a function cannot be overridden D) To specify that a variable's value cannot be changed once initialized

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What does RAII stand for in C++?

A) Resource Acquisition Is Initialization B) Resource Allocation Is Implementation C) Resource Allocation Is Initialization D) Resource Acquisition Is Implementation

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which class is used to design the base class?

A) abstract class B) derived class C) base class D) derived & base class

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What will be the output of the following C++ code?

#include <iostream>
#include <limits>
using namespace std;
int main( )
{
    cout << numeric_limits<float> :: is_exact;
    cout << numeric_limits<double> :: is_exact;
    cout << numeric_limits<long int> :: is_exact;
    cout << numeric_limits<unsigned char> :: is_exact;
}

A) 0010 B) 0012 C) 1100 D) 0011

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Where does the abstract class is used?

A) base class only B) derived class C) both derived & base class D) virtual class

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which is the best design choice for using pointer to member function?

A) Interface B) Class C) Structure D) Block

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is an abstract class in C++?

A) Class specifically used as a base class with atleast one virtual functions B) Class specifically used as a base class with atleast one pure virtual functions C) Class from which any class is derived D) Any Class in C++ is an abstract class

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which function is used to check whether a character is punctuation mark?

A) isxdigit() B) isprint() C) iscntrl() D) ispunct()

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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C++ miscellaneous MCQ question and answer with solution | C++ Programimg MCQs