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Question Detail
What is data hiding ?
- It is related with hiding internal object details
- It is related with showing internal object details
- It is related with datatypes
- None of above
Answer: Option A
1. The advantage of declaring a virtual function as pure is
?
- programs runs faster
- early binding can be achieved
- you force any derived class to define its own implementation
- you can avoid making the class an abstract class
Answer: Option C
2. Classes in c++ are ?
- Fundamental data type
- Primitive data type
- Desired data type
- Not defined
Answer: Option C
3. Classes that can be used to instantiate objects are called concrete classes.
- True
- False
Answer: Option A
4. Even if we define a function in a class, then also we need to declare it first.
- True
- False
Answer: Option B
Explanation:
If we define a function in a class, then also we do not need to declare it first.
5. Which of the following keywords are used to control access to a class member ?
- protected
- switch
- goto
- for
Answer: Option A
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