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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:

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:

Which is also called as abstract class?

A) virtual function B) pure virtual function
C) derived class D) None of these
 
Answer & Explanation Answer: B) pure virtual function

Explanation:

Classes that contain at least one pure virtual function are called as abstract base classes.

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Q:

Which of the following can derived class inherit?

A) members B) functions
C) both a & b D) None of the above
 
Answer & Explanation Answer: C) both a & b

Explanation:
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Q:

which keyword is used to define the macros in c++?

A) macro B) define
C) #define D) none of these
 
Answer & Explanation Answer: C) #define

Explanation:
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Q:

In which of the following we cannot overload the function?

A) return function B) caller
C) called function D) none of the mentioned
 
Answer & Explanation Answer: A) return function

Explanation:

While overloading the return function, it will rise a error, So we can’t overload the return function.

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Q:

Which is more effective while calling the functions?

A) call by value B) call by reference
C) call by pointer D) none
 
Answer & Explanation Answer: B) call by reference

Explanation:

In the call by reference, it will just copy the address of the variable to access it, so it will reduce the memory in accessing it.

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Q:

Which of the following is a properly defined structure?

A) struct {int a;} B) struct a_struct {int a;}
C) struct a_struct int a; D) struct a_struct {int a;};
 
Answer & Explanation Answer: D) struct a_struct {int a;};

Explanation:

The a_struct is declared as structure name and its data element is a.

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