Cardinality specifies the number of instances of one entity that can be associated with each instance of another entity.

A binary relationship is which of the following?

A. A relationship between two attributes

B. A relationship between two entities

C. An attribute with two different relationships

D. An entity with two different relationships

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

A relationship is which of the following?

A. A person, place, or thing

B. Property or characteristic of an entity

C. Link between entities

D. Weak entity

Which of the following conditions should exist if you want to convert a relationship to an associative entity?

A. Some of the relationships for the participating entities are 'many'.

B. The resulting associative entity has an independent meaning.

C. The resulting associative entity has no attributes.

D. All of the above.