Which of the following indicates the maximum number of entities that can be involved in a relationship?

Which of the following indicates the minimum number of entities that must be involved in a relationship?

A

Minimum cardinality

B

Maximum cardinality

C

ERD

D

Greater Entity Count (GEC)

If there are two entities with a relationship between them, and one of the entities is completely dependent on the other, then which of the following must exist?

A

Derived attribute

B

Optional one cardinality

C

Multi-valued attribute

D

Weak entity

An enterprise data model is a relational model that shows the high-level entities for the organization and associations among those entities.

A

True

B

False

A ternary relationship involves how many entities?

A

3 or less

B

3

C

More than 3

D

3 or more

If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on

A

Too lean mixture

B

Stoichiometric mixture

C

Most economical mixture

D

Too rich mixture

Entities can be associated with one another in which of the following?

A

Entities

B

Attributes

C

Identifiers

D

Relationships

Which of the following are the properties of entities?

A

Groups

B

Table

C

Switchboard

D

Attributes

Which of the following database activities determines the entities, attributes, and relationships of data?

A

Conceptual data modeling

B

Logical database design

C

Physical database design and definition

D

Database implementation

Which of the following situation requires the use of ID-dependent entities?

A

Association relationships only

B

Multivalued attributes only

C

Archetype/instance relationships only

D

All of the above use ID dependent entities

Which of the following is correct character entities for "Copyright" symbol?

A

B

C

©

D

³

Which of the following indicates the maximum number of entities that can be involved in a relationship?

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