Explore topic-wise MCQs in Technical MCQs.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.

1.

What can be passed by non-type template parameters during compile time?

A. Int
B. Float
C. Constant expression
D. None of the above
E.
Answer» D. None of the above
Discussion
2.

Note:Includes all required header filesusing namespace std;template < typename T >void print_mydata(T find){ cout << find << endl;}int main(){ double p = 17.5; string s("Hi to all"); print_mydata( p ); print_mydata( s ); return 0;} 19.How many bits of memory needed for internal representation of class?

A. 1
B. 2
C. 4
D. No memory needed
Answer» D. No memory needed
Discussion
3.

#include <iostream>using namespace std; template<int n> struct funStruct{ static const int val = 2*funStruct<n-1>::val;}; template<> struct funStruct<0>{ static const int val = 1 ;}; int main(){ cout << funStruct<10>::val << endl; return 0;}18.What will be the output of the following program?

A. 17.5 Hi to all
B. 17.5
C. Hi to all
D. None of the above
Answer» B. 17.5
Discussion
4.

#include <iostream>using namespace std; template <int i>void fun(){ i = 20; cout << i;} int main(){ fun<10>(); return 0;}17.What will be the output of this program?

A. Compiler Error
B. 1
C. 2
D. 1024
Answer» E.
Discussion
5.

#include <iostream>using namespace std;template <class P, class Q, class R>class A { P x; Q y; R z; static int count;};int main(){ A<int, int, int> m; A<char, char, char> n; cout << sizeof(m) << endl; cout << sizeof(n) << endl; return 0;} 16.What will be the output of this program?

A. Compile Error
B. 10
C. 20
D. 15
Answer» B. 10
Discussion
6.

#include <iostream>using namespace std;template <class T, class U>class A { T x; U y; static int count;}; int main() { A<char, char> p; A<int, int> q; cout << sizeof(p) << endl; cout << sizeof(q) << endl; return 0;}15.Which of the following is true about the following program

A. Compiler Error: template parameters cannot have default values
B. 12 6
C. 12 3
D. 6 3
Answer» C. 12 3
Discussion
7.

#include <iostream>using namespace std;template <typename T>T maximum(T x, T y){ return (x > y)? x : y;}int main(){ cout << maximum(3, 7) << std::endl; cout << maximum(3.0, 7.0) << std::endl; cout << maximum(3, 7.0) << std::endl; return 0;}14.Which of the following statement is correct about the program given below?

A. Compiler Error: There can not be more than one template arguments.
B. 6 12
C. 8 8
D. 2 8
Answer» E.
Discussion
8.

#include <iostream>using namespace std;template <typename T>void loopIt(T x){ int num=3; T lfc[num]; for(int p = 0; p < num; p++) { lfc[p] = x++; cout << lfc[p] << endl; }};int main(){ float q = 2.1; loopIt(q);} 13.What is the output of this program?

A. Compiler Error in last cout statement as call to maximum is ambiguous
B. Compiler Error in all cout statements as data type is not specified
C. 7 7.0 7.0
D. None of the above
Answer» B. Compiler Error in all cout statements as data type is not specified
Discussion
9.

#include <iostream>using namespace std;template <typename T>T max (T& p, T& q) { return (p>q?p:q); }int main () { int x = 55, y = 60, m; long a = 105, b = 53, n; m = max(x, y); n = max(a, b); cout << m << endl; cout << n << endl; return 0;}12.What is the output of this program?

A. 2.1
B. 3.1
C. 4.1
D. 2.1 3.1 4.1
Answer» E.
Discussion