Deck 12: Other Class and Object Relationships

Question 1

The ends of an association relationship are marked by unfilled diamonds.

Answer 1

False

Question 2

Iterative design is best described as

A)a design approach that focuses on parts of a design independently of others.
B)improving or adding to a design as one's understanding of the problem increases.
C)reusing design components from the same project or other projects.
D)emphasizing the relationships between classes throughout the design process.

Answer 2

B

Question 3

A trip includes stops at four well-known tourist sites is an example of

A)association.
B)composition.
C)generalization/specialization.
D)aggregation.

Answer 3

D

Question 4

Associations provide the connections with which objects of different classes can interact.

Question 5

Which of the following statements is not true of a composite?

A)A composite may add additional parts during its lifetime.
B)A composite may destroy one or more of its parts during its lifetime.
C)A composite may share a part with one or more other composites.
D)A composite has responsibility for the disposition of its parts.

Question 6

A role name is used to distinguish between the parent and the child in a relationship.

Question 7

A role name is optional for a relationship that is a self-association.

Question 8

The multiplicity symbol that indicates a person can work for at most one company at any one time is

A)1.1
B)n $\leq$ 1
C)0.1
D)1,1

Question 9

Which of the following statements is not a common advantage of object-oriented design?

A)higher productivity
B)higher quality
C)increased reuse
D)increased maintenance

Question 10

A relationship where the lifetimes of parts are independent of the lifetime of the whole is best described as a(n)

A)generalization/specialization.
B)composition.
C)aggregation.
D)association.

Question 11

Which of the symbols below means "zero or more,without limit"?

A)0).*
B)0).
C)0,1,2,…
D)-1..*

Question 12

A relationship where the whole is responsible for the disposition of its parts is called

A)generalization/specialization.
B)association.
C)composition.
D)aggregation.

Question 13

The multiplicity symbol 1..4 means

A)1 or 4
B)1 and 2 and 3 and 4
C)2 or 3
D)1 or 2 or 3 or 4

Question 14

A magazine for teens is a kind of publication is an example of

A)composition.
B)generalization/specialization.
C)aggregation.
D)association.

Question 15

The phrase "has-a" relationship is sometimes used in connection with

A)aggregation.
B)association.
C)composition.
D)generalization/specialization.

Question 16

A line connecting two classes on a class diagram represents a

A)binary association.
B)binary aggregation.
C)message.
D)switch.

Question 17

An inner class

A)operates with complete independence from its enclosing class.
B)contains one or more components that are part of an aggregation.
C)has access to all of its enclosing class's members,even if they are private.
D)is a common means of implementing composite relationships.

Question 18

An object may be a part of only one composite at a time.

Question 19

A composite relationship is represented on a class diagram by a(n)

A)unfilled diamond.
B)unfilled arrow.
C)solid-filled diamond.
D)solid-filled arrow.

Question 20

A class that has one or more classes defined within it is called a(n)

A)superclass.
B)container class.
C)inner class.
D)enclosing class.

Question 21

An aggregate can send messages to its parts during processing.

Question 22

Cycles are not allowed in the paths of aggregation links.

Question 23

An object-oriented approach to design tends to promote programmer productivity.

Question 24

An aggregate class can have multiple parts.

Question 25

Applications designed using an object-oriented approach are resistant to change.

Question 26

An enclosing class cannot contain private data members.

Question 27

An inner class inherits data and methods from its enclosing class.

Question 28

Composition is not a form of aggregation.

Question 29

The methods of a composite class must check for memory allocation/deallocation situations.

Question 30

Removing a part from a relationship is a way of destroying the part.