OMG-OCUP2-FOUND100 OMG Certified UML Professional 2 (OCUP 2) - Foundation Level Exam Practice Test

Answer : C

The diagram fragment shows an instance specification for an Employee. The different prefixes before each attribute indicate the visibility of that attribute:

+ Public: Visible to everyone.

- Private: Visible only within the defining class.

# Protected: Visible to subclasses and package.

~ Package: Visible to all classes within the same package.

Given these visibility indicators, the attribute with the private visibility is -salary: Real. This means that the salary attribute is the one that is hidden outside of the current:Employee classifier and cannot be accessed by entities that do not belong to the Employee class.

Therefore, the correct answer is:

C . salary

Answer : D

Having all the UML diagrams of a model maintain the same level of detail is typically required by tools that automatically transform the model into other forms, such as code or other types of models. Consistency in the level of detail across different diagrams ensures that automated tools can reliably interpret and convert the UML diagrams without encountering discrepancies that could lead to errors or misrepresentations in the generated outputs. This consistency is crucial for maintaining the integrity of the transformations and for ensuring that the resultant products accurately reflect the intended design and specifications.

Answer : D

In UML class diagrams, relationships between classes are represented in a number of different ways, including generalization, association, and composition.

Looking at the provided options, let's analyze each one:

A . responsiblePerson inherits from Person -- This is incorrect because the responsiblePerson is an attribute of the Task class, not a class itself, so it cannot inherit from Person.

B . Client and Manager have nothing in common -- This is incorrect because both Client and Manager are specialized types of Person as indicated by the generalization arrows pointing to Person.

C . responsiblePerson can not refer to an object of class Client -- This is incorrect. responsiblePerson is typed by Person, which means that it can refer to an instance of any subclass of Person, including Client.

D . The object referred to as responsiblePerson can be a Manager -- This is correct. Since responsiblePerson is an attribute of the Task class with the type Person, and Manager is a subclass of Person, responsiblePerson can indeed refer to an instance of Manager.

The correct answer is based on the UML 2 Foundation specification that describes how attributes are typed by classes and can refer to instances of these classes or their subclasses (UML 2.5 specification, sections 9.3.3 and 9.5.3). The generalization relationship (represented by a triangle followed by a line) establishes a hierarchy between a more general element and a more specific element, which in this case means that Client and Manager are both specific types of Person and can be used wherever Person is expected (UML 2.5 specification, section 9.4.5).

Answer : C

The image depicts a state machine with three states labeled 'state1' and 'state2'. Three events, e1, e2, and e3, are shown triggering transitions.

Analyzing the diagram, we can observe that all three events (e1, e2, and e3) are required for the transition from state1 to state2. The events are arranged sequentially, implying a specific order for the transition to occur.

Here's a breakdown of the reasoning for excluding other options:

Option A (When all of el. e2. and e3 occur in any order) is incorrect because the order of events matters.

Option B (When any one of the events e1. e2. or e3 occurs) is incorrect because all three events are necessary for the transition.

Option D (Never, because a transition cannot have more than one trigger) is incorrect because the state machine can transition with multiple triggers, but in this specific case, the order is crucial.

Therefore, based on the visual representation of the state machine, the correct answer is that the transition to state2 happens only when events e1, e2, and e3 occur in precisely the specified order

Answer : A

In UML, basic types like byte, short, and long are represented as DataType elements. These are typically used to specify the types of attributes, parameters, or return values of operations in a model. Option A shows three separate classes named Byte, Short, and Long, which would represent these as distinct data types within the UML model.

Option B incorrectly uses stereotypes on objects, which is not the correct UML representation for data types. Option C shows a class with attributes of different types, but it does not define these types as basic types. Option D is incorrect because it uses stereotypes on DataType elements, which is not the standard way to represent basic types in UML.

According to the UML 2.5 specification, DataTypes are a kind of classifier that specifies a domain of values without identity (section 10.5.8). DataTypes are not classes; they do not have operations and cannot have instances that maintain an identity.

Answer : B

In the context of a UML (Unified Modeling Language) model, the class named 'Employee' represents a template for all entities that are classified as employees within the business enterprise model. Therefore, the correct answer is:

B . The set of all employees of the company

The term 'Employee' in the class diagram is a UML Class, which is defined as a description of a set of objects that share the same attributes, operations, relationships, and semantics (UML 2.5 specification, section 9.2). A class in UML is a blueprint from which individual objects (instances of the class) are created. It is not a representation of any single employee, an anonymous employee, or a diagram of an employee, but rather the conceptual model that defines the properties and behaviors of all employee instances in the domain being modeled.

Answer : C

The dashed arrow with an open arrowhead in the UML diagram represents a dependency relationship. In UML, a dependency is a relationship that signifies that one element, or set of elements, requires another element (or set of elements) for its specification or implementation. This means that changes to the target element(s) (the element(s) that the arrow points to) may cause changes to the source element(s).

The statement 'One or more of the elements in Package G depends on one or more of the elements in Package F' correctly describes the nature of a dependency relationship in UML. It indicates that there is at least one element in Package G that requires some element(s) from Package F. This does not necessarily imply that all elements from Package G depend on all elements from Package F.

Therefore, the correct answer is:

C . One or more of the elements in Package G depends on one or more of the elements in Package F.