C++ miscellaneous MCQ question and answer with solution

41

Which function is used to print the maximum element from Valarray?

A) change() B) min() C) swap() D) max()

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Answer & Solution

Answer: Option D

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42

What is the use of tuple_cat() function?

A) Takes the union of two tuples B) Takes the intersection of two tuples C) Concatenates two tuples D) Removes elements of the second tuple from first

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Answer & Solution

Answer: Option C

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43

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

#include <iostream>
using namespace std;
template <class T>
T max (T& a, T& b) 
{
    return (a>b?a:b);
}
int main () 
{
    int i = 5, j = 6, k;
    long l = 10, m = 5, n;
    k = max(i, j);
    n = max(l, m);
    cout << k << endl;
    cout << n << endl;
    return 0;
}

A) 6 B) 6
10 C) 5
10 D) 5

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Answer & Solution

Answer: Option B

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44

When will the cin can start processing of input?

A) After pressing return key B) BY pressing blank space C) After pressing return key & BY pressing blank space D) BY pressing delete space

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Answer & Solution

Answer: Option A

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45

What are Random-access Iterators?

A) Iterators that can be used to access elements at an arbitrary offset position B) Same as Bi-directional iterator C) Input iterator with the additional property of random access D) Output iterator with the additional property of random access

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Answer & Solution

Answer: Option A

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46

How many types of loops are there in C++?

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

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Answer & Solution

Answer: Option A

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47

What does this template function indicates?

==================
template<class T>
T func(T a)
{
	cout<<a;
}
==================

A) A function taking a single generic parameter and returning a generic type B) A function taking a single generic parameter and returning nothing C) A function taking single int parameter and returning a generic type D) A function taking a single generic parameter and returning a specific non-void type

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Answer & Solution

Answer: Option A

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48

What does the second parameter of the main function represent?

A) Number of command line arguments B) List of command line arguments C) Dictionary of command line arguments D) Stack of command line arguments

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Answer & Solution

Answer: Option B

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49

Which header file is used to manipulate the vector algebra in c++?

A) math B) cmath C) vmath D) dmath

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Answer & Solution

Answer: Option C

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50

Which function is used to get the imaginary part of the complex number?

A) real() B) imag() C) imag_p() D) real_p()

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Answer & Solution

Answer: Option B

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