Question 1 2 pts (TCO 3) Inheritance represents what kind of relationship? has -

Question

Question 1
2 pts
(TCO 3) Inheritance represents what kind of relationship?

has - a

uses - a

is - a

None of the above

Question 2
2 pts
(TCO 4) Which of the following terms can be used to describe inheritance relationships between classes?

Parent/child

Super/sub

All of the above

Base/derived

Question 3
2 pts
(TCO 4) Select the parent class.

Person

Manager

Executive

Staff

Question 4
2 pts
(TCO 4) Which of the following is not a good example of a hierarchy that could be modeled by
inheritance?

Prime numbers

Airplanes

Geometric shapes

Animals

Question 5
2 pts
(TCO 4) Which of the following examples represent the "is-a" relationship in the parent/child format?

All of the above

person/employee

person/student

student/international student

Question 6
2 pts
(TCO 3) What is the result of over-using inheritance?

All of the above

Code is harder to understand.

Unnecessary relationships are created.

System dependencies are created.

Question 7
2 pts
(TCO 3) Which of the following are true about composition?

Associations and aggregations should be used together in composition.

The system should be highly dependable.

The type of composition only includes associations, and excludes aggregations.

Only inheritance can be represented using UML; composition cannot be represented using UML.

Question 8
2 pts
(TCO 4) _____ is the least secure member access specifier.

Friend

Private

Public

Protected

Question 9
2 pts
(TCO 4) Inheritance is only possible in _____ languages.

GUI based

procedural

object-oriented

non-structured

Question 10
2 pts
(TCO 6) The whole list of parent classes from which a child class is derived constitutes the _____ of the child class

role

subset

ancestors

family

Explanation / Answer

Question 1 Ans)

Inheritance represents an "is-a" relationship ( answer is option 3)

Question 2 Ans )

Answer is All of the above ( option 3)

Parent/child -- Child class inherits functionality from parent class

super/sub --- sub class inherits functionality from super class

Base/Derived --- Derived class inherits functionality from Base class

So answer is All of the above (option 3).

Question 3 ) Ans :

Parent class is Person , i.e is option 1 because from person , manager, executive and staff are derived.

Question 4) Ans :

Prime Numbers is not a good example of a hierarchy that could be modeled by inheritance.

Prime numbers cannot be extended to accommodate future child classes

So answer is option 1 ( Prime numbers)

Question 5) Ans:

As inheritance represents an "Is-A" relationship, answer is " All of the Above" (option 1)

person/employee -- represents parent/child relationship

person/student --- represents parent/child relationship

student/international student --- represents parent/child relationship

So answer is all of the above(option 1)

Question 6) Ans :

Answer is All of the above (option 1)

When inheritance is overused, we create system dependencies, unnecessary relationships, and harder to use code.

Question 7) Ans:

The system should be highly dependable in composition ( i.e option 3)

Question 8) Ans:

From most protection to least, the order of inheritance is private < protected< public.

So Answer is Public (option 3)

Question 9) Ans :

Only Object oriented language supports inheritance.

So answer is object-oriented( option 3)

Question 10) Ans:

As child classes are derived from list of parent classes. So parent classes contains " Ancestors" of the child class

So answer is ancestors (option 3)

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