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Choose the correct answer

Which diagram fragment validly depicts adding properties to a stereotype?

A)

B)

C)

D)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Choose the correct answer.

Given the following model:

Which statement is true?

A.

Only Instances X1 and X? are invalid

B.

Only instances X2 and X4 are invalid.

C.

Only instance X4 is invalid.

D.

All instances (X1, X2, X3, and X4) are valid.

Choose the correct answer.

Given the following state machine fragment.

if it starts in F-State and then the event evB is received, what is the subsequent state?

A.

D-State

B.

E-State

C.

F-State

D.

G-Stale

E.

None: the diagram is ill-formed

Choose the correct answer.

What is a property that may be calculated by analysis of the model?

A.

a derived property

B.

an analysis property

C.

a calculated property

D.

an estimation property

E.

a replacement property

Choose the correct answer

What is an effective and efficient approach to project modeling standards and conventions?

A.

Every project should create its own domain specific profile to describe modeling standards and conventions

B.

Organizations should create specific modeling standards and conventions to ensure modeling consistency across projects

C.

The SysML specification alone is sufficient to describe modeling standards and conventions when the modeling tool has a proper implementation of SysML

D.

The SysML specification and the modeling tool documentation are sufficient to describe modeling standards and conventions

Choose the correct answer.

A system engineer has created the following model of a tank system composed of two tanks and a pipe connecting them:

The system engineer wants to mathematically relate the flow of water through the pipe using the following mass conservation equation: Tank_System wFlowin flowRate * Tank_System pipe endA_Area = Tank_System wFlowOut flowRate * Tank_System pipe endB_Area How would the system engineer model this in SysML?

A.

Create a block to represent the mass conservation equation, use it in Tank_System. and relate its properties to the properties of wFlowin. wFlowOut. and pipe

B.

Create a constraint block to represent the mass conservation equation, use it in Tank_System. and relate its parameters to the properties of wFiowin. wFlowOut. and pipe

C.

Create a constraint block to represent each of wFlowin wFlowOut and the mass conservation equation; use these constraint blocks In Tank_System. and relate their parameters to the properties of pipe.

D.

Create two flow properties for Tank_System (equivalent to wFlowin and wFlowOut); create a constraint block for the mass conservation equation and use it in Tank_System. and then relate the flow properties to the new constraint property.

E.

It is not possible to model this because wFlowin and wFlowOut are item properties and not flow properties

Choose the correct answer

How would a modeler refine a use case textual narrative?

A.

provide a detailed definition of the use case using a behavioral diagram

B.

specify all of the triggers preconditions, and post conditions for the use case

C.

specify all extension points for extend use cases and specify all secondary actors

D.

provide a complete textual description of the main flow and alternative/exceptional flows for the use case

Choose the correct answer.

Given a system for keeping birds away from airports One component, described by the following diagram directs audio signals at birds that approach a runway, its parts, as part properties, are typed by blocks.

A systems engineer has identified some blacks that type the pan properties, but as the design becomes more specific, the engineer discovers that these blocks exist in multiple variants.

What modeling choice does the engineer face at this point?

A.

whether to model part properties as (a) a library, or (b) a logical hierarchy

B.

whether to model part properties as (a) a library or (b) a hierarchy of non-composite relationships

C.

whether to model variants of blocks that type part properties as (a) explicit subclasses of the blocks, or (b) part-specific types.

D.

whether to model variants of blocks that type part properties as (a) implicit subclasses of the blocks, or (b) part-specific types

Choose the correct answer

What is the statement "An activity specifies the behavior of a use case?

A.

a constraint defined in SysML

B.

a guideline from a methodology

C.

a constraint of the activity element

D.

a constraint of the use case element

Choose the correct answer

A sequence diagram depicts the beginning of a user's session with a piece of interactive software . The diagram must show that the –Software Session is created by some activity of the .User.

Which sequence diagram fragment expresses this?

A)

B)

C)

D)

A.

Option A

B.

Option B

C.

Option C

D.

Option D