Interfaces(Engineering > Computer Science And Engineering > C++ Language ) Questions and answers for exam Preparation

Question 1. which of the following is used to implement the c++ interfaces?

absolute variables
abstract classes
constant variables
none of the mentioned

Explanation:-

Answer: Option B. -> abstract classes

abstract classes

Question 2. How many types of modularization are there in c++?

4
3
1
none of the mentioned

Explanation:-

Answer: Option D. -> none of the mentioned

There are two types of modular programming.They are interface and implementation.

Question 3. How many types does functions fall depends on modularization?

1
2
3
4

Explanation:-

Answer: Option B. -> 2

There are two types of functions.They are program control and specific task.

Question 4. What does the client module import?

macro
records
interface
none of the mentioned

Explanation:-

Answer: Option C. -> interface

Because they access the functions in the module using interface.

Question 5. What is the ability to group some lines of code that can be included in the program?

specific task
program control
modularization
macros

Explanation:-

Answer: Option C. -> modularization

Modularization is also similar to macros but it is used to build large projects.

Question 6. Identify the correct statement

c++ does not have built-in interfaces
c++ does have built-in interfaces
c++ have no cocept of interfaces
none of the mentioned

Explanation:-

Answer: Option A. -> c++ does not have built-in interfaces

c++ does not have built-in interfaces

Question 7. What is similar to interface in c++

methods
instance of class
pure abstract class
none of the mentioned

Explanation:-

Answer: Option C. -> pure abstract class

pure abstract class

Question 8. Which of the following implements the module in the program?

macro
header files
both of the mentioned
none of the mentioned

Explanation:-

Answer: Option B. -> header files

We can include the group of code by using the #include header file.