OMG-OCUP2-ADV300 Exam Practice Test Instant Access

Question 1

Choose the correct answer: What is the scope of fUML?

AIt defines the implementation of the action metamodel defined in UML 1.5.

BIt defines execution semantics for UML activity diagrams, state machines, and sequence diagrams

CIt defines a subset of behavioral concepts to ensure computational independence of control and data structures.

DIt defines execution semantics for a set of high-level UML modeling concepts used by a wide range of system types.

Answer : D

The scope of fUML (Foundational UML) is to define execution semantics for a subset of the UML 2 metamodel that provides a shared foundation for higher-level UML modeling concepts.This includes the precise definition of the execution semantics of that subset, which is intended to be used by a wide range of system types, including physically distributed and concurrent systems without assumptions about global synchronization1.

Question 2

Choose the correct answer:

What is a reason for fUML lo be compact?

AfUML should be small to facilitate definition of a clear semantics.

BfUML must be possible to execute on computers with restricted capacity

CfUML must be easily memorized by those who apply it to make semantics.

DfUML should always support 1-1 mappings from surface to platform languages.

Answer : A

The reason for fUML to be compact is to facilitate the definition of clear semantics. A smaller, more focused subset of UML allows for a more precise and unambiguous specification of the execution semantics.This clarity is essential for ensuring that models are executed consistently and as intended across different tools and platforms2. The compact nature of fUML helps in achieving this goal by limiting the scope to the essential elements necessary for execution, thereby reducing complexity and potential for misinterpretation.

Question 3

Choose the correct answer:

What does "computationally complete" mean in the context of fUML?

AIt characterizes a model that covers all aspects of the real system and can be used for simulation purposes.

BIt characterizes a model that enables a modeling tool to execute all behavioral diagrams of the UML.

CIt characterizes a subset of UML that is sufficiently expressive to allow definition of models that can be automatically executed on a computer by an execution tool.

DIt characterizes a model that is compliant to the third conformance level of UML (level 1 = informal, level 2 = semi-formal).

Answer : C

The term ''computationally complete'' in the context of fUML refers to a subset of UML that is expressive enough to define models that can be executed automatically by a computer using an execution tool.This means that the subset includes all the necessary elements and constructs to specify the behavior of a system in a way that can be understood and run by a machine without further interpretation

Question 4

Choose the correct answer:

What is true about a MOF 2.x Model?

AIt is always a valid UML 2 x Model

BIt can be a valid UML 2.x Model, when certain limitations are observed.

CThe visual representation resembles a UML 2.x Model, but the underlying Model is a MOF-Model.

DThere is a subtle difference between it and a UML 2.x Model, but only theoretical computer scientists care.

Answer : B

A MOF (Meta Object Facility) 2.x Model is not always a valid UML (Unified Modeling Language) 2.x Model. The MOF 2.x and UML 2.x serve different purposes and have different scopes of application.While UML is a general-purpose modeling language used to define software systems, MOF is a language for defining metamodels, which can include UML itself1.

The MOF 2.x specification provides the basis for metamodel definition in OMG's (Object Management Group's) family of modeling languages, which includes UML.However, it is based on a simplification of UML 2's class modeling capabilities1.MOF is designed to be simpler, directly implementable, and provides a set of CORBA interfaces for manipulating meta objects2.In contrast, UML is used as a general-purpose modeling language with potentially many implementation targets2.

Therefore, a MOF 2.x Model can be a valid UML 2.x Model when certain limitations are observed, such as adhering to the simplified class modeling capabilities that MOF is based on.This means that while a MOF model can resemble a UML model in terms of visual representation, it is fundamentally a MOF model, and its validity as a UML model depends on the extent to which it conforms to the UML specifications

Question 5

Choose the correct answer:

What is the main purpose of the concept of Extent in MOF?

ATo allow an Element to access its meta class in order to obtain a reflective description of that Element.

BTo define a set of Tags that represent information to be associated by any number of model Elements.

CTo provide a context in which an Element can be identified independently from any value in the Element.

DTo provide an extension mechanism to dynamically annotate model Elements with additional information.

Answer : B

The concept ofExtentin MOF serves the purpose of defining a set ofTagsthat can be associated with any number of model elements. These tags provide additional information or metadata about the elements. Extent allows you to annotate model elements with relevant information beyond their intrinsic properties. It provides a context for identifying and managing these annotations independently from the element's actual values.

Meta-Modeling and the OMG Meta Object Facility (MOF)

About the Meta Object Facility Specification Version 2.5.1

Semantics, Metamodels, and Ontologies | SpringerLink

Question 6

Choose the correct answer:

Which statement is correct about redefinition of simple States?

AA simple State cannot be redefined

BA simple State can be redefined by excluding it in a redefined StateMachine.

CA simple State can be redefined as a composite State with one or more Regions.

DState Redefinition is not a UML capability.

Answer : B

In UML, a simple State can indeed be redefined, but the specifics of how it is redefined matter:

A is incorrect as redefinition of States, including simple States, is permitted.

B is correct. A simple State can be effectively removed or altered through redefinition in a derived StateMachine, which could include changing its type or characteristics.

C suggests that a simple State can be turned into a composite State. While theoretically possible in the context of redefinition, this option might be considered a significant alteration that could be misleading without additional context.

D is incorrect; UML does support State Redefinition.

UML Specification, particularly the sections on Redefinition and StateMachines.

Detailed rules on state redefinition are outlined in the UML 2.5 Documentation, specifically under StateMachine specializations.

Question 7

Choose the correct answer:

Which statement is correct about StateMachme Redefinition?

AUML has no concept or discussion of StateMachine Redefinition.

BStateMachine Redefinition is the act of altering an existing StateMachine to support new States or new Events.

CWhen a modeler corrects typographical errors or removes inappropriate States in their StateMachine, they are redefining that StateMachine.

DStateMachine Redefinition is a necessary capability in UML because UML allows modelers to specialize Classifiers and their Behavior definitions.

Answer : D

StateMachine Redefinition in UML allows for the specialization of a StateMachine by a derived Classifier. This is crucial as it ties into the broader capability of UML to specialize behaviors and classifiers:

A is incorrect; UML does discuss StateMachine Redefinition.

B describes one aspect of redefinition but is too narrow as it omits that redefinition can also redefine transitions and internal behaviors, not just states or events.

C describes more of an error correction or revision process, which is not specifically what StateMachine Redefinition is about.

D captures the essence of StateMachine Redefinition, emphasizing that it is a necessary extension of UML's capabilities to allow for specialization and refinement of classifiers and their behaviors.

UML Specification, Section on StateMachines

StateMachine Redefinition is further elaborated in UML 2.5 Documentation under the Behavior StateMachines sections.

OMG-OCUP2-ADV300 OMG Certified UML Professional 2 (OCUP 2) - Advanced Level Exam Practice Test