QUESTION $1$

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

True

False

$1$ points

QUESTION $2$

All simple attributes are also single$-$valued.

True

False

$1$ points

QUESTION $3$

Connectivities and cardinalities are established by business rules.

True

False

$1$ points

QUESTION $4$

All entity relationships can be characterized as weak or strong.

True

False

$1$ points

QUESTION $5$

The $\_\_\_\_$ attribute$($s$)$ make up the primary key in the table definition:

CLASS $($CRS$\_$CODE, CLASS$\_$SECTION, CLASS$\_$TIME, CLASS$\_$ROOM, PROF$\_$NUM$)$

CRS$\_$CODE

CLASS$\_$SECTION

CRS$\_$CODE and CLASS$\_$SECTION

There is no primary key

$1$ points

QUESTION $6$

A $\_\_\_\_$ attribute can be further subdivided to yield additional attributes.

composite

simple

single$-$valued

multivalued

$1$ points

QUESTION $7$

A $\_\_\_\_$ should be a derived attribute.

Person$$s name

Person$$s age

Person$$s social security number

Person$$s phone number

$1$ points

QUESTION $8$

A $\_\_\_\_$ entity has a primary key that is partially derived from the parent entity in the relationship.

strong

weak

business

relationship

$1$ points

QUESTION $9$

The Crow$$s foot symbol with two parallel lines indicates $\_\_\_\_$ relationship $($modality$).$

$(0,$N$)$

$(1,$N$)$

$(1,1)$

$(0,1)$

$1$ points

QUESTION $10$

A $\_\_\_\_$ relationship exists when two entities are associated.

unary

binary

ternary

weak