OMG OMG-OCUP2-FOUND100 OMG Certified UML Professional 2 (OCUP 2) - Foundation Level Online Training - Page 3 of 4

Question #21

What is the meaning of the relationship shown in the diagram below?

A . class B is the creator of class A
B . class A is dependent on class B
C . class B is dependent on class A
D . class A can be reached (torn class B

Question #22

A structured class called System has two parts called Subsystem 1 and Subsystem2 respectively, as shown in the class diagram fragment below:

Which of the following diagrams contains an equivalent definition of System?

A)

B)

C)

D)

A . Option
B . Option
C . Option
D . Option

Reveal Solution Hide Solution

Question #23

OpaqueExpression can use which languages?

A . onlyOCL
B . only programming languages
C . only Mathematical Expressions
D . any language

Reveal Solution Hide Solution

Question #24

In UML modeling, what is the (unction of Comments?

A . to provide additional semantics to the model elements
B . to provide useful information to the reader of the model
C . to enable automatic generation of comments in the code
D . to add UML constraints to one or more model elements of the diagrams

Reveal Solution Hide Solution

Question #25

Consider the following diagram:

Which statement is true about the diagram?

A . Within G you may refer to v:K by gh.H::v. .
B . From within H it is impossible to reach the v within G.
C . The package Pckg cannot have two definitions of v as shown in the diagram.
D . v will indicate different elements depending on where you refer to v within Pckg

Reveal Solution Hide Solution

Question #26

Given the diagram fragment below:

What are the possible values for the attribute response in the class Query?

A . Maybe
B . Yes. No, Maybe
C . There is insufficient information to determine the answer.
D . The diagram is not legal UML

Reveal Solution Hide Solution

Question #27

Consider the following diagram:

Is this diagram valid?

A . No, because a DataType cannot have Associations to a Class.
B . No, because a DataType cannot have Operations.
C . No, because a DataType cannot have Attributes.
D . Yes, it is formally correct.

Reveal Solution Hide Solution

Question #28

Consider the following class diagram:

Which object diagram corresponds to it?

A)

B)

C)

D)

A . Option A
B . Option B
C . Option C
D . Option D

Reveal Solution Hide Solution

Correct Answer: D
D

Explanation:

The question asks to identify which object diagram corresponds to the provided class diagram. In order to verify which object diagram is correct, we must look at the class diagram to understand the relationships and multiplicities between the classes, and then match these with the objects and links in the object diagrams.

The class diagram (not visible in your query but implied to be the reference for the object diagrams provided) must contain three classes, A, B, and C, with specific multiplicity relationships among them. Here’s how we deduce the correct object diagram:

Multiplicity between A and C is "1..2", which means that for each instance of A there must be one or two links to instances of C.

Multiplicity between B and C is "0..2", which means that for each instance of B there are zero, one, or two links to instances of C.

Multiplicity between A and B is "0..1", which indicates that for each instance of A there can be zero or one link to an instance of B.

With these rules, we analyze the object diagrams:

Option A has one instance of A linked to two instances of C, which is correct according to the "1..2" multiplicity. However, there are two instances of B (b1 and b2) each linked to a single instance of C (c1), which violates the "0..2" multiplicity rule because it implies there should be two links from c1 to the B instances (b1 and b2) but instead, there are two separate links to the same instance of C (c1), which is not allowed.

Option B has similar issues where two instances of A (a2 and a1) are linked to a single instance of C, which violates the "1..2" multiplicity rule.

Option C shows each instance of A and B linked to their own separate instances of C. This violates the "1..2" multiplicity between A and C since there is only one link from A to C and does not show the possibility of two links which the multiplicity "1..2" would allow.

Option D shows a single instance of A linked to two instances of C (c1 and c2), which satisfies the "1..2" multiplicity. Additionally, there is a single instance of B linked to one of the instances of C (c1), satisfying the "0..2" multiplicity. The A instance has no direct link to the B instance, which is allowed because the "0..1" multiplicity permits zero links between instances of A and B.

Based on this analysis, the only object diagram that satisfies all the multiplicity constraints of the class diagram is Option D.

The verification of the answer can be cross-checked with the UML 2 Foundation documentation, specifically in the section dealing with object diagrams and their correlation with class diagrams, which will confirm that object diagrams represent instances of classes and must comply with the multiplicities defined in the class diagram they are derived from. Multiplicity notation and interpretation are fundamental concepts in UML and are well documented in the UML specification by the Object Management Group (OMG).

Question #29

Consider the following diagram:

Which statement is always true about this diagram?

A . There are infinitely many H objects inside Pckg.
B . There are between 1 and 5 G objects inside Pckg
C . For every H object, there are fewer than 5 G objects associated with it.
D . There may be an G object which has no H object associated with it through gh.

Reveal Solution Hide Solution

Question #30

In your model, you need to represent accounts.

Which statement supports using a Class, rather than a DataType. lor this purpose”

A . The account is uniquely identified by its account number.
B . The account number can change, but it would still be the same account.
C . The account needs operations to transfer money into it or to withdraw money
D . The account has attributes typed by Classes like account_holder; Person or bank_in_Charge Company

Reveal Solution Hide Solution

OMG OMG-OCUP2-FOUND100 OMG Certified UML Professional 2 (OCUP 2) – Foundation Level Online Training