Chapter 4

The ER model refers to a specific table row as an entity occurrence.

• True

• False

The following ER diagram shows __________________ relationship(s) between entities.

• Unary

• Binary

• Ternary

• Two Binary

Table A below ________ entity integrity; Table B below ________ entity integrity; Tables A and B together __________ relational integrity. 

• 
  satisfies; satisfies; do not satisfy

• satisfies; satisfies; satisfy

• does not-satisfy; does not-satisfy; satisfy 

• 
  satisfies; does not-satisfy; do not satisfy

The above table is illustrative of a _________ relationship.

• Unary

• Binary

• Ternary

• Dependency

A composite identifier is a primary key composed of more than one attribute.

• True

• False

The ER diagram represents the conceptual database as viewed by the end user.

• True

• False

Derived attributes are stored in a special database table.

• True

• False

The Crow's foot symbol with two parallel lines indicates ____ cardinality.

• (0,N)

• (1,N)

• (1,1)

• 
  (0,1)

Connectivities and cardinalities are established by business rules.

• True

• False

The ER Diagram shown below is illustrative of ___________ relationship between the three entities.

• unary

• binary

• ternary

• strong