1.

From the statements below, select all that correctly describe a type of database.

a.

A distributed database has data which is spread across different sites.

b.

A data warehouse is primarily used to support a company's day-to-day operations such as sales.

c.

An enterprise database is a database that is used by many users (more than fifty, usually hundreds) across many departments.

d.

A workgroup database is typically used by fifty or fewer people who work together, usually in a department.

2.

What type of relationship is expressed with the business rules?

Each store is managed by one employee

Each employee manages at most one store

a.

1:M (one to many)

b.

1:1 (one to one)

c.

M:N (many to many)

d.

1:5 (one to five)

3.

Which of the following correctly describe an entity? (Check all that apply.)

	a.	An entity must represent something concrete, such as a physical object.
	b.	An entity is bidirectional.
	c.	An entity may have several attributes.
	d.	An entity represents a particular type of object (such as a product) or shared abstraction (such as an account).
	e.	An entity is the equivalent of a field in a file system.