ER Model and Business Rules - General Questions

1.

Which of the following is not one of the three ways to classify an action assertion?

A.	Condition
B.	Integrity Control
C.	Authorization
D.	Enabler

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

2.

Use of a supertype/subtype relationship is necessary when which of the following exists?

A.	An instance of a subtype participates in a relationship that is unique to that subtype.
B.	An instance of a subtype participates in a relationship that is the same as the other subtypes.
C.	Attributes apply to all of the instances of an entity type.
D.	No attributes apply to any of the instances of an entity type.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

3.

A subtype entity name should be which of the following?

A.	A singular noun
B.	Specific to the organization
C.	Concise
D.	All of the above

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

4.

When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

A.	Disjoint with total specialization
B.	Disjoint with partial specialization
C.	Overlap with total specialization
D.	Overlap with partial specialization

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

5.

A subtype discriminator is which of the following?

A.	An attribute of the supertype whose values determine the subtype
B.	An attribute of the subtype whose values determine the supertype
C.	An attribute of the supertype whose values determine the supertype
D.	An attribute of the subtype whose values determine the subtype

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

6.

A supertype/subtype hierarchy has which of the following features?

A.	Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype.
B.	Attributes are assigned at the highest logical level.
C.	Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype.
D.	Attributes are assigned at the lowest logical level.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

7.

Which of the following statements concerning business rules is true?

A.	It should be complex.
B.	It should not be convertible to computer code.
C.	It may include restrictions.
D.	All of the above.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

8.

Specialization is which of the following processes?

A.	Defining one or more subtypes of the supertype and forming supertype/subtype relationships.
B.	Defining one or more supertypes of the subtype and forming supertype/subtype relationships.
C.	Defining one or more subtypes of the supertype and not forming supertype/subtype relationships.
D.	Defining one or more supertypes of the subtype and not forming supertype/subtype relationships.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

1
2