Free SYSML MODEL USER EXAM Practice Questions

Sample Practice Questions

Try these 10 sample questions from the SYSML MODEL USER EXAM practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1Which services can a SysML v1.2 standard port specify for its owning block?

   1. A.Services provided to and required from the environmentCorrect answer: A
   2. B.Only services provided to the environment
   3. C.Only services required from the environment
   4. D.Only material and energy items flowing on a connector

   Explanation: The specification states: "A standard port specifies the services the owning block provides (offers) to its environment as well as the services that the owning block expects (requires) of its environment.". This identifies the services it provides to and requires from its environment.

   Reference: OMG Systems Modeling Language Specification Version 1.2 — 9.1.1, Standard Ports

2. 2Which statement describes a control flow in a UML activity?

   1. A.It passes object and data tokens only
   2. B.It passes both control tokens and object tokens
   3. C.It passes control tokens onlyCorrect answer: C
   4. D.It passes an object token for every control token

   Explanation: The UML specification states: "A control flow is an activity edge that only passes control tokens.". This means control flow.

   Reference: OMG Unified Modeling Language Superstructure Specification — 12.3.19, ControlFlow, Semantics

3. 3What is allocation used to express in a SysML model?

   1. A.A mapping that assigns ownership of every target to its source
   2. B.A mapping that requires all source behaviors to execute in order
   3. C.A mapping that always represents physical connections
   4. D.An organized mapping of elements across model structuresCorrect answer: D

   Explanation: The specification states: "Allocation is the term used by systems engineers to denote the organized cross-association (mapping) of elements within the various structures or hierarchies of a user model.". This supports an organized mapping of elements across model structures.

   Reference: OMG Systems Modeling Language Specification Version 1.2 — 15.1, Overview

4. 4What does a SysML requirement specify about a system or element?

   1. A.A complete implementation of the system design
   2. B.A capability or condition that must or should be satisfiedCorrect answer: B
   3. C.A recorded verdict from a particular test case
   4. D.A justification for choosing a design alternative

   Explanation: The specification states: "A requirement specifies a capability or condition that must (or should) be satisfied.". This supports a capability or condition that must or should be satisfied.

   Reference: OMG Systems Modeling Language Specification Version 1.2 — 16.1, Overview

5. 5What does a SysML v1.2 flow port specify about items at a block boundary?

   1. A.The operations that the block offers as services
   2. B.The input and output items that may flow through itCorrect answer: B
   3. C.The specific item that actually flows on every connector
   4. D.The result of each synchronous service invocation

   Explanation: The specification states: "A flow port specifies the input and output items that may flow between a block and its environment.". This identifies the input and output items that may flow through it.

   Reference: OMG Systems Modeling Language Specification Version 1.2 — 9.1.2, Flow Ports

6. 6What can an activity parameter node represent in a SysML activity?

   1. A.An input or output of the containing activityCorrect answer: A
   2. B.Only an input or output of the individual action that owns it
   3. C.Control tokens only, never object or data tokens
   4. D.Inputs and outputs through the same node simultaneously

   Explanation: The UML specification states: "An activity parameter node is an object node for inputs and outputs to activities.". This means an input or output of an activity.

   Reference: OMG Unified Modeling Language Superstructure Specification — 12.3.9, ActivityParameterNode

7. 7In what direction does an «allocate» dependency arrow point?

   1. A.From the element being allocated to its targetCorrect answer: A
   2. B.From the allocation target back to its source
   3. C.In both directions between source and target
   4. D.Without a direction between source and target

   Explanation: The specification states: "the directed line points “from” the element being allocated “to” the element that is the target of the allocation.". This supports from the element being allocated to its target.

   Reference: OMG Systems Modeling Language Specification Version 1.2 — 15.3.1.2, Allocate Relationship Rendering

8. 8Which two properties are explicitly included in a standard SysML requirement?

   1. A.An identifier and a test verdict
   2. B.Requirement text and a verification status
   3. C.A unique identifier and requirement textCorrect answer: C
   4. D.A verification status and a test verdict

   Explanation: The specification states: "A standard requirement includes properties to specify its unique identifier and text requirement.". This supports a unique identifier and text.

   Reference: OMG Systems Modeling Language Specification Version 1.2 — 16.1, Overview

9. 9A pump has a flow port capable of accepting electrical energy. In a particular connection, a model identifies alternating current crossing the connector. Which construct identifies what flows in that connection?

   1. A.The standard port's provided interface
   2. B.The flow port's possible input type
   3. C.An item flow on the connectorCorrect answer: C
   4. D.The flow specification typing the port

   Explanation: The specification states: "item flows specify what “does” flow between blocks and/or parts in a particular usage context." The flow port indicates what may enter; the item flow identifies alternating current in this particular connection.

   Reference: OMG Systems Modeling Language Specification Version 1.2 — 9.1.3, Item Flows

10. 10What does a decision node do with incoming tokens?

    1. A.Synchronizes multiple concurrent incoming flows
    2. B.Duplicates each token across concurrent outgoing flows
    3. C.Selects between outgoing flows based on guardsCorrect answer: C
    4. D.Terminates all flows in the containing activity

    Explanation: The UML specification states: "A decision node accepts tokens on an incoming edge and presents them to multiple outgoing edges. Which of the edges is actually traversed depends on the evaluation of the guards on the outgoing edges.". This means selects between outgoing flows based on guards.

    Reference: OMG Unified Modeling Language Superstructure Specification — 12.3.22, DecisionNode, Description