Interview Questions

1. Which symbol is used to define a variable of template data type?

Options:

a. ()

b. {}

c. <>

d. []

Reveal Answer

2. Which symbol is used to separate the number of template variables?

Options:

a. ;

b. ,

c. :

d. ::

Reveal Answer

3. A generic programming approach is one which can process only the defined data type.

Options:

a. True

b. False

Reveal Answer

4. Can we define templates for both classes and functions?

Options:

a. Yes

b. No

c. Only classes

d. Only functions

Reveal Answer

5. The process of creating a specific class from a class template is called as ……………….

Options:

a. Template class

b. Generic class

c. Instantiation

d. None of the above

Reveal Answer

6. Templates enable us to define ……………….. classes

Options:

a. Base class

b. Generic class

c. Derived class

d. None of the above

Reveal Answer

7. When will the compiler perform error analysis?

Options:

a. Only when the template class is created

b. Only when the Instantiation has completed his job

c. Only when the template class has declared

d. Only when an Instantiation takes place

Reveal Answer

8. What does the Template instructs the compiler?

Options:

a. That the class is using a data type

b. That the class is using a non data type

c. That the class is using a Template data type

d. Both (a) & (c)

Reveal Answer

9. What is the output of the following program? #include <iostream> using namespace std; template<class T> class Number { public: Number(T a) { cout<<a<<endl; } }; int main() { Number N1(2); return 0; }

Options:

a. 2

b. Syntax error

c. Compile error

d. Runtime error

e. Both (b) & (c)

Reveal Answer

10. A Template function is overloaded either by a template function or by an ordinary function of its name.

Options:

a. True

b. False

Reveal Answer

11. Which is the incorrect rule for compiler to execute a function?

Options:

a. It searches for the accurate match of function & if it is found, it is being invoked.

b. It will take long time to execute.

c. Attempts normal overloading declaration for function.

d. If no matches are being found, an error will be reported.

Reveal Answer

12. Which of the following is used to describe the function?

Options:

a. Template type parameters

b. Template type

c. Template parameters

d. None of above.

Reveal Answer

13. What parameters can be passed to a non – type Template during compile time?

Options:

a. string

b. char

c. float

d. constant expression

Reveal Answer

14. Which of the following is dependent on the template parameter?

Options:

a. Abstract class

b. Method

c. Both (a) & (b)

d. None of the above

Reveal Answer

Interview Questions and Answer

1. Which symbol is used to define a variable of template data type?

2. Which symbol is used to separate the number of template variables?

3. A generic programming approach is one which can process only the defined data type.

4. Can we define templates for both classes and functions?

5. The process of creating a specific class from a class template is called as ……………….

6. Templates enable us to define ……………….. classes

7. When will the compiler perform error analysis?

8. What does the Template instructs the compiler?

9. What is the output of the following program? #include <iostream> using namespace std; template<class T> class Number { public: Number(T a) { cout<<a<<endl; } }; int main() { Number N1(2); return 0; }

10. A Template function is overloaded either by a template function or by an ordinary function of its name.

11. Which is the incorrect rule for compiler to execute a function?

12. Which of the following is used to describe the function?

13. What parameters can be passed to a non – type Template during compile time?

14. Which of the following is dependent on the template parameter?

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