OMG OMG Certifications OMG-OCSMP-MBI300 Questions & Answers

• Question 51:

  Choose the correct answer.

  What is one key advantage of using SysML parametrics versus traditional derived properties?

  A. A derived property requires an additional constraint expression, whereas SysML parametrics does not.

  B. OCL-based constraint expressions can be used with SysML parametrics but not with derived properties

  C. it takes many more steps to specify derived properties in the typical tool compared to specifying constraint blocks.

  D. SysML parametrics supports non causal expressions, whereas a derived property involves an expression with a fixed output direction

  Correct Answer: C

• Question 52:

  Choose the correct answer.

  Given the following diagram fragment:

  

  What is the correct way to show, on the diagram, that a Taxi has four wheels and Bus has six wheels?

  A. initialize the multiplicities of wheel as part of the system Initializer

  B. draw new relationships between Taxi and Wheel and Bus and Wheel using the same role name but different multiplicities

  C. draw new relationships between Taxi and Wheel and Bus and Wheel with the specific multiplicities and mark the wheel end as redefining the wheel end of the relation between PublicTransportCar and Wheel

  D. draw new relationships between Taxi and Wheel and 8us and Wheel with the specific multiplicities and mark the wheel ends as subsets of the wheel end of the relation between PublicTransporlCar and Wheel

  Correct Answer: B

• Question 53:

  Choose the correct answer

  What does a «rate» applied to an activity edge specify?

  A. a lower bound on the number of changes to an object's value per time Interval

  B. a lower bound on the number of objects that will traverse the edge per time interval

  C. the expected number of changes to an object's value per time interval.

  D. the expected number of objects that traverse the edge per time interval

  E. an upper bound on the number of changes to an object's value per time interval

  F. an upper bound on the number of objects that will traverse the edge per time interval

  Correct Answer: D

• Question 54:

  Choose the correct answer.

  A system engineer has created a SysML block structure for his system-of-interest. Two of the blocks (M and E) represent system-level abstractions of components that will be designed by a mechanical engineer and an electrical engineer m their respective computer- aided design (CAD) tools.

  Given that the CAD models are wrapped as blocks B_mcad and B_ecad, what type of diagram should the system engineer use to quantitatively relate the properties of B_mcad and B_ecad to their system level abstractions M and E respectively?

  A. an activity diagram

  B. a parametric diagram

  C. an internal block diagram

  D. a block definition diagram

  Correct Answer: B

• Question 55:

  Choose the correct answer

  Which statement is true when modeling generalization?

  A. Subclasses may only redefine existing features of a superclass.

  B. Subclasses may add, remove, and redefine existing features of a superclass

  C. Subclasses may add and remove, but not redefine, existing features of a superclass

  D. Subclasses may add and redefine, but not remove existing features of a superclass

  E. Subclasses may remove or redefine existing features, but not add features, to a superclass.

  Correct Answer: D

• Question 56:

  Choose the correct answer. Given the following diagram:

  

  Which message ordering is valid?

  A. M1, M2. M3, M4

  B. M3. M1. M2, M4

  C. M3, M4. M1, M2

  D. None of these orderings is valid.

  Correct Answer: C

• Question 57:

  Assume the block is in A-State when two evCs ate received.

  

  What is a plausible sequence of behaviors that occurs when a subsequent evG occurs?

  A. action 1. stop activity X (if running), action 7, action 8, action 5, start activity Y

  B. stop activity X (if running), action 8, action 5, start activity Y, action 7

  C. stop activity X (if running) action 8, action 5, start activity Y, action 7, action 7

  D. stop activity X (if running), action 2, action 8, action 5, start activity Y, action 7, action 7

  E. stop activity X (if ninning). action 2, action 8, action 5, start activity Y, action 7, action 7, action 6

  Correct Answer: A

• Question 58:

  Choose the correct answer. Given the following diagram:

  

  What Is the meaning of the consider fragment?

  A. It is a constraint that prevents adding a nested ignore fragment for any one of ml. m2 or m3.

  B. It ignores all messages other than ml m2 and m3 in the scenario being described by the interaction

  C. The meaning is undefined because the diagram is ill-formed in the absence of n>3. which must be considered.

  D. It allows the invocation of the operations corresponding to messages m 1. m? and m3 only when they appear in that order

  Correct Answer: A

• Question 59:

  Choose the correct answer

  In a state machine which behavior can be interrupted by a transition which leaves the current state?

  A. a do behavior

  B. an entry behavior

  C. an exit behavior

  D. the effect of an internal transition

  Correct Answer: A

• Question 60:

  Choose the correct answer.

  Given the following bdd fragment and table showing messages sent between blocks:

  

  Block C Is encapsulated; none of the other blocks are.

  Which Ibd for block A has the correct assignment of flow ports and connectors? If two or more options are correct, select the one with the fewest ports.

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: B