Objects and Classes (2)

9.

What does the class definitions in following code represent?

class Bike
{
Engine objEng;
};
class Engine
{
float CC;
};

A.	kind of relationship
B.	has a relationship
C.	Inheritance
D.	Both A and B

Answer: Option B

Explanation:

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10.

Which of the following statements about virtual base classes is correct?

A.	It is used to provide multiple inheritance.
B.	It is used to avoid multiple copies of base class in derived class.
C.	It is used to allow multiple copies of base class in a derived class.
D.	It allows private members of the base class to be inherited in the derived class.

Answer: Option B

Explanation:

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11.

Constructor is executed when _____.

A.	an object is created
B.	an object is used
C.	a class is declared
D.	an object goes out of scope.

Answer: Option A

Explanation:

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12.

Which of the following also known as an instance of a class?

A.	Friend Functions
B.	Object
C.	Member Functions
D.	Member Variables

Answer: Option B

Explanation:

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13.

Which of the following type of data member can be shared by all instances of its class?

A.	Public
B.	Inherited
C.	Static
D.	Friend

Answer: Option C

Explanation:

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14.

Which of the following can access private data members or member functions of a class?

A.	Any function in the program.
B.	All global functions in the program.
C.	Any member function of that class.
D.	Only public member functions of that class.

Answer: Option C

Explanation:

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15.

Which of the following keywords is used to control access to a class member?

A.	Default
B.	Break
C.	Protected
D.	Asm

Answer: Option C

Explanation:

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16.

Which of the following statement is correct with respect to the use of friend keyword inside a class?

A.	A private data member can be declared as a friend.
B.	A class may be declared as a friend.
C.	An object may be declared as a friend.
D.	We can use friend keyword as a class name.

Answer: Option B

Explanation:

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