Important OMG-OCUP2-ADV300 Exam Questions

Answer: D

Explanation:

In UML, class templates are the concept used to create classes that can be parameterized with different data types. This feature satisfies the first condition, allowing collections to support any data type. Class templates can be specialized, fulfilling the second condition, where some collections can inherit from others, thus enabling the reuse of functionality. Additionally, UML allows for operations to be defined in such a way that they cannot be overridden, by specifying them as non-virtual or final, which meets the third condition. Therefore, the use of class templates would be the most suitable approach for the design criteria specified by the programming language designers. This approach is consistent with the capabilities of class templates as described in the UML 2.x Superstructure Specification.

Answer: C

Explanation:

Protocol State Machines in UML are used to specify the allowable protocol transitions that can be observed in the instances of a classifier. The interpretations that can be defined for protocol state machines are:

A . Behavioral and protocol are not specific types of interpretations but rather describe aspects of state machines in general.

B . Declarative and procedural describe styles or approaches to programming or specification, not specific to UML state machine interpretations.

C . Declarative and executable is the correct answer. Declarative interpretations specify the allowed sequences of events in a state machine, while executable interpretations are concerned with the actual implementation that can be executed by a machine.

D . Executable and non-executable are distinctions but not specifically pertaining to protocol state machine interpretations alone.

UML Specification: State Machines chapter, particularly sections on protocol state machines.

Further details can be found in the UML 2.5 Documentation discussing the differences between different state machine interpretations.

Answer: D

Explanation:

In UML, ValueSpecifications are used to specify the value of an element. The UML 2 Specification does not define a metaclass named StringExpression. Instead, it provides a metaclass named OpaqueExpression, which can be used when an expression is written in a language that is not directly interpretable by the model. Since there is no metaclass called StringExpression in the UML 2 Specification, there is no explicitly intended use for it within the UML metamodel. The absence of this metaclass suggests that any use of a concept called 'StringExpression' would not conform to standard UML 2 practices and would likely be part of an extension or profile, not the core UML metamodel.

Answer: C

Explanation:

In UML, profiles are applied to specific model elements to adapt the UML metamodel to different domains or platforms. The provided diagram shows a UML package diagram within which the Versioning profile is applied to the 'Business Logic' package, and the DBProfile is applied to the 'Data' package. This is a correct use of profiles in UML as they allow the customization of parts of a model by applying additional constraints and stereotypes to specific packages or classes. There is no restriction in UML that a profile cannot be applied to multiple packages in the model simultaneously, and profiles do not necessarily need to be members of the namespace of the model they are applied to; they can be defined externally. Therefore, the scenario presented is a correct application of two different profiles to two distinct packages within the same model, conforming to the UML 2.x Superstructure Specification.

Answer: C

Explanation:

The UML diagram illustrates two types of reproduction for cattle: natural and assisted. In natural reproduction, a bull (xy) and a cow (xx) result in a new cattle (result), which aligns with biological principles. The same principle applies to assisted reproduction, where the donor is also cattle (xy), and the result is a new cattle. Since both Ferd Bull and Don Donor are specialized types of Cattle, and the result of both reproductions is Cattle, it implies that both xx and xy are of type Cattle, but within the context, xx is specifically a Cow. Therefore, xx is a Cow, xy is Cattle (which can be a Bull or Donor), and the result is also Cattle. This interpretation aligns with the principles of UML where specific instances (like Ferd Bull and Don Donor) are instances of the more general classifier Cattle.