Quiz 4-5

Question 1

UML is only to be used in agile projects (true/false)

Answer 1

false

Question 2

UML can be used across all the phases of software development lifecycle, e.g, requirements, design, testing, evolution… (true/false)

Answer 2

true

Question 3

UML can be used for modeling a mobile app, but also a satellite (true/false)

Answer 3

True

Question 4

UML contains only graphical representations (true/false)

Answer 4

false

Question 5

UML is the most popular language for modeling software. (true/false)

Answer 5

True

Question 6

Which of the following could be potential actors for use cases of an employee within an IT consultancy firm?

• Send emails to clients
• E-mail server
• Meeting clients
• Employee administration system
• IT consultancy firm
• Employee
• HR system
• Project Manager
• Client

Answer 6

• E-mail server
• Employee administration system
• Employee
• Project Manager
• Client

Question 7

How do actors interact with the system within use case diagrams?

• By specifying what they do
• By being used by the system
• By interacting with another actor
• By being used by use cases
• By using use cases

Answer 7

• By being used by use cases

- By using use cases

Question 8

What is a class?

• A class is a construction plan for a set of similar objects of a system
• A class is an object of a system
• A class is a construction plan for the system
• A class is a construction plan for all objects of a system

Answer 8

-A class is a construction plan for a set of similar objects of a system

Question 9

Which of the statements below describes a binary association role?

• Describes the way in which an object is involved in an association relationship
• Describes the way in which an object is involved in a class diagram
• Connects instances of two classes with one another

Answer 9

-Describes the way in which an object is involved in an association relationship

Question 10

In use case diagrams, actors interact with the system….

• By being used by use cases
• By creating sequences
• By creating classes
• By using use cases

Answer 10

• By being used by use cases

- By using use cases

Question 11

Actors represent roles that the system adopts. (true/false)

Answer 11

false

Question 12

In use case diagrams, specific users can have multiple roles simultaneously. (true/false)

Answer 12

true

Question 13

In use case diagrams, actors cannot initiate the execution of use cases. (true/false)

Answer 13

false

Question 14

In use case diagrams, an actor must be human.

true/false

Answer 14

false

Question 15

In use case diagrams, extension points define at which point system behavior is integrated.
(true/false)

Answer 15

True

Question 16

In use case diagrams, the secondary actor receives no benefit. (true/false)

Answer 16

false

Question 17

In use case diagrams, every actor must communicate with at least one use case (true/false)

Answer 17

true

Question 18

In use case diagrams, we cannot specify multiplicities. (true/false)

Answer 18

false

Question 19

In use case diagrams, the base use case and the extending use case can be executed independently of each other. (true/false)

Answer 19

True

Question 20

Use case diagrams do not model processed or workflows. (true/false)

Answer 20

true

Question 21

Use case diagrams include functions and data required to provide interaction. (true/false)

Answer 21

false

Question 22

Use case diagrams provide an abstract overview of the system from actors’ perspectives (true/false)

Answer 22

True

Question 23

In use case diagrams, actors are connected with use cases with dashed lines. (true/false)

Answer 23

false

Question 24

In use case diagrams, an association is always binary. (true/false)

Answer 24

True

Question 25

In use case diagrams, grouping many small use cases with the same objective into one, is considered to be a bad practice. (true/false)

Answer 25

false

Question 26

Use-case diagrams consist of different elements. Match the given description with the corresponding element. (use case, generalization, association)

Unit of functionality of the system

Answer 26

use case

Question 27

Use-case diagrams consist of different elements. Match the given description with the corresponding element. (use case, generalization, association)

Inheritance relationship between actors or use cases

Answer 27

generalization

Question 28

Use-case diagrams consist of different elements. Match the given description with the corresponding element. (use case, generalization, association)

Relationship between use cases and actors

Answer 28

association

Question 29

Aggregation is a special form of association, used to express that a class is a part of another class (true/false)

Answer 29

true

Question 30

Shared aggregation expresses a strong belonging of the parts to a whole (true/false)

Answer 30

false

Question 31

In shared aggregation, one element cannot be part of multiple other elements simultaneously (true/false)

Answer 31

false

Question 32

In composition, if the composite object is deleted, its parts could also deleted (true/false)

Answer 32

true

Question 33

Generalizations are not transitive (true/false)

Answer 33

False

Question 34

In binary association, non-navigability is indicated by a circle (true/false)

Answer 34

false

Question 35

In binary association, if navigability is not defined, then bidirectional navigability is assumed (true/false)

Answer 35

true

Question 36

Multiplicity shows number of classes that may be associated with each other (true/false)

Answer 36

false

Question 37

There exists three types of aggregation, specifically shared aggregation, composition and combination (true/false)

Answer 37

false