C++ miscellaneous MCQ question and answer with solution

41

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

#include <iostream>
#include <bitset>
using namespace std;
int main()
{
	bitset<8> b1(15);
	cout<<b1;
}

A) 00001111 B) 1111 C) 11110000 D) 0000000000001111

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Answer & Solution

Answer: Option A

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42

How many types of comments are there in c++?

A) 1 B) 2 C) 3 D) 4

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Answer & Solution

Answer: Option B

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43

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

#include <iostream>
#include <array>
 
using namespace std;
 
int main(int argc, char const *argv[])
{
	array<int,5> arr1;
	arr1.fill(5);
	cout<<get<5>(arr1);
	return 0;
}

A) 5 B) Compile-time error C) Run-time error D) Segmentation fault

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Answer & Solution

Answer: Option B

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44

What is subtract_with_carry_engine?

A) Pseudo-random number engine that generates random unsigned integers B) Pseudo-random number engine that generates random unsigned integers in the range [0, 2^w-1] for some w using Mersenne Twister algorithm C) Pseudo-random number engine that generates random unsigned integers in the range [0, 2^w-1] for some w using lagged Fibonacci generator D) Pseudo-random number engine that generates random signed integers in the range [0, 2^w-1] for some w using Mersenne Twister algorithm

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Answer & Solution

Answer: Option C

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45

What is the difference between normal function and template function?

A) The normal function works with any data types whereas template function works with specific types only B) Template function works with any data types whereas normal function works with specific types only C) Unlike a normal function, the template function accepts a single parameter D) Unlike the template function, the normal function accepts more than one parameters

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Answer & Solution

Answer: Option B

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46

Which type of program is recommended to include in try block?

A) static memory allocation B) dynamic memory allocation C) const reference D) pointer

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Answer & Solution

Answer: Option B

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47

How many types of guarantees are there in exception class can have?

A) 1 B) 2 C) 3 D) 4

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Answer & Solution

Answer: Option C

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48

Which of the following(s) can be used to access the first element of a vector v?

A) v.begin() B) v.cbegin() C) v[0] D) all of the mentioned

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Answer & Solution

Answer: Option D

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49

Composition is also a type of . . . . . . . . relationship.

A) Aggregation B) Association C) Inheritance D) Both Aggregation an Association

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Answer & Solution

Answer: Option B

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50

How many instances are allowed by map and set while inserting an element into container?

A) 1 B) 2 C) 3 D) Multiple

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Answer & Solution

Answer: Option A

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