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Q:

Which design patterns benefit from the multiple inheritance?

A) Adapter and observer pattern B) Code pattern
C) Glue pattern D) None of these
 
Answer & Explanation Answer: A) Adapter and observer pattern

Explanation:
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Q:

What will happen when introduce the interface of classes in a run-time polymorphic hierarchy?

A) Separation of interface from implementation B) Merging of interface from implementation
C) Separation of interface from debugging D) None of the mentioned
 
Answer & Explanation Answer: A) Separation of interface from implementation

Explanation:
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Q:

What will happen when an exception is not processed?

A) It will eat up lot of memory and program size B) Terminate the program
C) Crash the compiler D) None of the mentioned
 
Answer & Explanation Answer: A) It will eat up lot of memory and program size

Explanation:

As in the case of not using an exception, it will remain useless in the program and increase the code complexity.

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Q:

Which operator is used in catch-all handler?

A) ellipses operator B) ternary operator
C) string operator D) unary operator
 
Answer & Explanation Answer: A) ellipses operator

Explanation:

The ellipses operator can be represented as (…).

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Q:

What is meant by exception specification?

A) A function is limited to throwing only a specified list of exceptions. B) A catch can catch all types of exceptions.
C) A function can throw any type of exceptions. D) none of the mentioned
 
Answer & Explanation Answer: A) A function is limited to throwing only a specified list of exceptions.

Explanation:

C++ provides a mechanism to ensure that a given function is limited to throwing only a specified list of exceptions. It is called as exception specification.

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Q:

What are the operators available in dynamic memory allocation?

A) new B) delete
C) compare D) both a & b
 
Answer & Explanation Answer: D) both a & b

Explanation:

new and delete operators are mainly used to allocate and deallocate
during runtime.

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Q:

What is meant by template specialization?

A) It will have certain data types to be fixed. B) It will make certain data types to be dynamic.
C) Certain data types are invalid D) None of the mentioned
 
Answer & Explanation Answer: A) It will have certain data types to be fixed.

Explanation:

In the template specialization, it will make the template to be specific for some data types.

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Q:

What is a template?

A) A template is a formula for creating a generic class B) A template is used to manipulate the class
C) A template is used for creating the attributes D) none of the mentioned
 
Answer & Explanation Answer: A) A template is a formula for creating a generic class

Explanation:
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Filed Under: C++