A functional dependency such as X ? Y means

	a.	X functionally determines Y.
	b.	Y is functionally dependent on X.
	c.	either a. or b.
	d.	neither a. or b.

QUESTION B

A functional dependency such as X ? Y means

	a.	for each unique value Y in a relation table, there is one unique value X value associated.
	b.	for each unique value X in a relation table, there is one unique value Y value associated.
	c.	for each unique value Y in a relation table, there is at most one unique value X value associated.
	d.	for each unique value X in a relation table, there is at most one unique value Y value associated.

QUESTION C

A key in a relation table is

	a.	a proper subset of a candidate key.
	b.	a proper superset of a superkey key.
	c.	a minimal superkey.
	d.	None a., b, and c are correct.

QUESTION D

A transaction is a logical unit of sequential operations that must be

	a.	entirely completed.
	b.	entirely aborted.
	c.	either a. or b.
	d.	neither a. nor b.

QUESTION E

Each transaction must display

	a.	durability
	b.	atomicity
	c.	consistency
	d.	isolation