What does the symbol in the exhibit represent in UML 2.0 activity diagrams?

A. state

B. action

C. activity

D. behavior

E. object node

F. control node

Which describes active classes?

A. classes that have state machines

B. classes whose instances may signal other objects

C. classes whose instances have their own thread of control

D. classes whose instances are able to execute one or more operations

E. classes whose instances are actively executing one or more operations

What does the diamond symbolize in the diagram?

A. decision point between three classes

B. three-way message sent to three classes

C. aggregation of team and goalie objects for a particular season

D. binary association between instances of Team, Player, and Year

E. ternary association between instances of Team, Player, and Year

Let us denote sending of p as !p and receiving p as ?p. Which trace defines the interaction N in the exhibit?

A.

B.

C.

D.

Which arrowhead shows that a message represents an asynchronous signal?

A. Option A

B. Option B

C. Option C

D. Option D

A found message in a UML interaction diagram is a message with what characteristic?

A. the sending event is not present

B. the receiving event is not present

C. has no corresponding execution occurrence

D. chosen by the modeler to consider in this diagram

What term describes a customer ordering books via the web?

A. user

B. actor

C. client

D. subject

E. user-case

F. external system

Zev works as the librarian at the local library. an also borrow books as an ordinary library patron. many actors are needed when modeling people like Zev in a use case diagram?

A. 1 actor

B. 2 unconnected actors

C. 1 actor and 1 external system

D. 2 actors connected by a generalization

How many of the three arrows outgoing from the solid circle (as depicted in the exhibit) will be given values during the execution of a well-defined activity diagram?

A. none

B. one

C. two

D. three

What is an interface?

A. a classifier that serves as a level of indirection between two other classifiers

B. a classifier that represents the declaration of a set of coherent public features and obligations

C. a relationship that represents the declaration of a set of coherent public features and obligations

D. a classifier that represents the implementation of a set of coherent public features and obligations

E. a relationship that represents the implementation of a set of coherent public features and obligations