OMG-OCSMP-MBA400 Exam Practice Test Instant Access

Question 1

Choose the correct answer.

How does the quality of models relate to the quality of the modeling language used to express them?

AModel quality benefits from the degree of syntactical and semantic formalism supported by the modeling language

BThe modeling language must be applicable to a wide range of domains of practice in order to produce high-quality models.

CThe level of comprehensibility of the modeling language's abstract syntax directly corresponds to the quality of the models

DThe quality of the modeling language does not influence tin.- quality of the models because the quality of the models depends on the skill and knowledge of the modeler

Answer : B

Question 2

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A company is executing a large distributed engineering project. More than a dozen engineers are contributing to the system model, working from different locations spread across three time zones The lead engineer has decided that it is essential to maintain a single model. The department director has expressed concern that the project may have trouble employing its engineers productively while still maintaining configuration control of this common model.

Which configuration management strategy is likely to be most successful*?

AUse a centralized repository for the model files Allow only engineers in the eastern-most time zone to upload changes to the model files in the mornings, and the western engineers in the afternoons. Either can download and view the model files at any time. This will assure maximum productivity while minimizing the possibility of collisions

BUse a configuration management tool to manage model elements. Assign ownership of model elements at the package level- Only the owner of a package may make changes to elements in that package Note that each relationship between model elements must be
contained within a single package

CUse a configuration management tool to manage model elements. Allow packages to be checked out by any user for editing, which locks the elements therein contained Packages may be viewed in read-only mode by any user at any time All model users receive alerts when a package they are viewing has been modified and checked-in. and changes are highlighted Packages may not remain checked out overnight

DCo-locate the modeling team Trying to maintain configuration of a model across a distributed team is extremely difficult and may not succeed

Answer : C

This configuration management strategy is likely to be most successful because it allows the engineers to work on the system model collaboratively and concurrently, while maintaining configuration control and avoiding conflicts. A configuration management tool is a software tool that helps manage changes to model elements and track their versions and history. A package is a grouping mechanism that can contain any kind of model element, such as diagrams, blocks, activities, etc. By using a configuration management tool, the engineers can check out packages for editing, which locks the elements in that package and prevents other users from modifying them. The engineers can also view packages in read-only mode by any user at any time, which allows them to see the latest version of the model without affecting it. The engineers can also receive alerts when a package they are viewing has been modified and checked-in by another user, and see the changes highlighted. This way, the engineers can stay informed and synchronized with the model updates. By not allowing packages to remain checked out overnight, the engineers can avoid holding up the work of other users who need to access or modify those packages. Reference: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://sysml.org/tutorials/sysml-diagram-tutorial/

Question 3

Choose the correct answer

Athe import and export of only SysML diagrams from one tool to another

Bthe import and export of only SysML model data from one tool to another

Cthe import and export of both SysML diagrams and model data from one tool to another

Dthe ability to perform model checking to verify model conformance

Answer : C

If a systems modeling tool conforms to the XMI specification and includes the XMI representation of the UML Profile for SysML and the XMI representations of Model Libraries defined by SysML, the tool provides the import and export of both SysML diagrams and model data from one tool to another. XMI (XML Metadata Interchange) is a format specification that enables the interchange of objects and models through an XML formatted file. It is based on a metamodel that defines the abstract syntax and semantics of the model elements. By conforming to the XMI specification, a tool can serialize and deserialize SysML models in terms of XML elements and attributes. The tool can also include the XMI representation of the UML Profile for SysML, which defines the mapping of SysML concepts to UML concepts, and the XMI representations of Model Libraries defined by SysML, which provide predefined types and units for SysML models. This way, the tool can import and export both SysML diagrams and model data from one tool to another, ensuring consistency and interoperability. Reference: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://www.omg.org/spec/XMI/2.5.1/About-XMI/

Question 4

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A project is evaluating several modeling tools which comply in vanous degrees to SysML abstract and concrete syntax The customer will allow some deviation from full compliance, as long as technical risk is minimized.

Which tool characteristics are required for this project?

Afull compliance with abstract syntax, and limited deviations from concrete syntax

Bfull compliance with concrete syntax, and limited deviations from abstract syntax

Climited deviations from abstract and concrete syntax

Dfull compliance with both abstract and concrete syntax, nothing less is adequate

Answer : A

This tool characteristic is required for this project because it ensures that the modeling tool follows the SysML abstract syntax, which defines the metamodel elements and their semantics. The abstract syntax is essential for ensuring consistency and interoperability between different tools and models. The concrete syntax, which defines the notation and presentation of the elements, can have some deviations as long as they do not affect the meaning or interpretation of the model. For example, a tool can use different colors or shapes for some elements without changing their semantics. Reference: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://sysml.org/docs/specs/OMG_SysML_1.6.pdf

Question 5

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A system engineer is designing an algorithm that governs the behavior of his system-of-interest He is using SysML for modeling system behavior and related allocations, and plans to auto-generate MATLAB code for algorithm execution and testing.

Which modeling approach should the engineer use?

Ause block constructs to represent the algorithm, and create use cases for each of the functions used in the algorithm

Buse activity constructs to represent the algorithm and its functions, and create actions to represent the use of functions in the algorithm

Cuse block constructs to represent the algorithm and its functions, and create part properties to represent the use of the functions in the algorithm

Duse activity constructs to represent the algorithm and its functions, and create containment relationships to represent the use of functions in the algorithm

Euse package constructs to represent the algorithm and its functions, and create containment relationships to represent the use of functions in the algorithm

FCode generation is outside the scope of SysML. so the system engineer should use UML

Answer : B

This modeling approach should be used by the system engineer because it allows him to capture the behavior of his system-of-interest using SysML activities and actions. An activity is a behavior that specifies the coordination of actions. An action is a behavior that specifies a transformation or processing of data. By using activities and actions, the engineer can model the algorithm and its functions in terms of inputs, outputs, control flows, object flows, parameters, etc. He can also use allocations to relate the activities and actions to other model elements, such as blocks or requirements. This way, he can generate MATLAB code from his SysML model for execution and testing. Reference: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://sysml.org/tutorials/sysml-diagram-tutorial/

Question 6

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Which SysML diagram type is a modification of the UML Class diagram?

AParametric Diagram

BInternal Block Diagram

CPackage Diagram

DBlock Definition Diagram

Answer : D

The SysML diagram type that is a modification of the UML Class diagram is the Block Definition Diagram (BDD). A BDD shows the definition of blocks in terms of their features, such as properties, operations, ports, etc. It is similar to a UML Class diagram, but it adds some features specific to SysML, such as value types, units, flow properties, etc. A block is an extension of the UML Class metaclass that can be used to model any system component with structure and behavior. Reference: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://sysml.org/tutorials/sysml-diagram-tutorial/

Question 7

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What is a fundamental goal of UPDM?

Ato define a common means of expressing DoDAF and MODAF architectures using the same underlying metamodel

Bto capture the common aspects of MODAF and DoDAF elements, removing the elements and views that are not common

Cto define a common means of expressing DoDAF and MODAF architectures so that they can be modeled solely in SysML

Dto separate the DoDAF and MOOAF metamodels but give them a common underpinning by creating a separate UML profile for each of them within UPDM

Answer : A

A fundamental goal of UPDM is to define a common means of expressing DoDAF and MODAF architectures using the same underlying metamodel. UPDM is a UML profile that supports both DoDAF and MODAF, which are two main architectural frameworks used in the defense domain. UPDM provides a common set of elements and relationships that can be used to represent architectures in either framework, using a Domain Metamodel that captures the core concepts of both frameworks. UPDM also provides mappings to UML and SysML concepts to enable implementation and integration with other modeling languages and tools. Reference: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://www.omg.org/updm/

OMG-OCSMP-MBA400 OMG-Certified Systems Modeling Professional - Model Builder - Advanced Exam Practice Test