OMG-OCUP2-ADV300 Exam Dumps : OMG Certified UML Professional 2 (OCUP 2) - Advanced Level

The diagram depictsElectronic Device Kindas a class that requires a set of Certifications (required : Certification[1..*]). This implies that any subclass ofElectronic Device Kindmust provide a set of required Certifications because the multiplicity[1..*]indicates that at least one Certification is mandatory for each instance ofElectronic Device Kindor its subclasses. Therefore, when a subclass is created, it inherits the requirement to specify what Certifications are needed. This is a standard UML generalization, where the subclass inherits the attributes and constraints of its superclass. This interpretation is consistent with the rules defined in the UML 2.x Superstructure Specification, which includes the semantics of class generalization and attribute inheritance.

Before the SomeActivity action is executed, the value of "Counter" is not specified in the given diagram fragment; therefore, we cannot assume that it has a value. This leads to the answer C, "It is empty." In UML, unless an initial value is explicitly specified for a variable, it cannot be assumed to have a default value.

References:

• UML 2.5 Specification: The UML specification's section on variables and actions would explain that unless initialized, variables do not have a default value.

State Machine Events in UML are triggers for transitions and do not classify as objects or classifiers; thus they do not inherently have features:

• A.Incorrect, because State Machine Events are not treated as classifiers with features.
• B.Incorrect, though it hints at an extended use case, State Machine Events do not extend classifiers in standard UML usage.
• C.Correct, State Machine Events are not Classifiers and therefore cannot have features such as properties or operations.
• D.Incorrect, because UML State Machines certainly have an Event concept, but these Events are not classified as having features.

References:

• UML Specification: State Machine chapter, specifically sections discussing the nature of events and triggers.
• Further insights can be found in the event and trigger management sections of the UML 2.5 Documentation.