OMG OMG Certifications OMG-OCUP-200 Questions & Answers

• Question 91:

  In a state machine, what is true for a "do" activity of a state?

  A. can only appear in a composite state

  B. is equivalent to an entry action of a state

  C. starts executing when the state is entered D. executes repeatedly as long as the state is active

  E. specifies a condition that must always be true when the state is active

  Correct Answer: C

• Question 92:

  What is true of a composite state with two regions?

  A. is an orthogonal state

  B. is executed concurrently

  C. is a kind of submachine state

  D. is equivalent to two states with one region each

  E. can have separate entry and exit actions for each region

  Correct Answer: A

• Question 93:

  What does a region in a state machine represent?

  A. concurrent state

  B. contained state machine

  C. separate thread of execution

  D. concurrent object owned by the context object of the state machine

  E. part of a composite state or a state machine containing transitions and vertices

  Correct Answer: E

• Question 94:

  What is true of outgoing transitions from a fork pseudostate?

  A. may have guards

  B. are mutually exclusive

  C. are taken serially in arbitrary order

  D. must terminate in different regions of a state

  E. can only exist if the object is declared concurrent

  Correct Answer: D

• Question 95:

  What does a choice pseudostate designate?

  A. a conditional fork pseudostate

  B. point with an associated Boolean condition

  C. point at which outgoing guards are evaluated

  D. point whose outgoing transitions are optional

  E. point that is chosen dynamically during execution

  Correct Answer: C

• Question 96:

  What is true about a pseudostate?

  A. not a state but a vertex B. a state entry or exit point

  C. a specification of a potential state

  D. a state that can be specialized for different purposes

  Correct Answer: A

• Question 97:

  What does the final state of a composite state indicate?

  A. The state machine has terminated.

  B. The enclosing region is completed.

  C. A completion transition has occurred.

  D. The "do" activity of the state has completed.

  E. The context object of the state machine is terminated.

  Correct Answer: B

• Question 98:

  What does via foo in the exhibit designate?

  

  A. transient pseudostate named foo

  B. an action foo associated with the transition

  C. a transition terminating on the foo entry point

  D. the sending of a foo message on the transition

  E. a Boolean guard equal to the logical value of foo

  Correct Answer: C

• Question 99:

  In UML, what kind of behaviors are state machines used to describe?

  A. discrete

  B. continuous

  C. software based

  D. continuous or discrete

  Correct Answer: A

• Question 100:

  What is a ConnectionPointReference used to declare?

  A. a pseudostate

  B. a submachine state

  C. a pointer to a connection point

  D. an entry or exit point of a state

  E. an entry or exit point of a submachine state

  Correct Answer: E