A(n) ______ block is a data block that you do not associate with a particular database table.

Referential integrity should be enforced in a database with related tables because it

A) helps ensure data is automatically updated. B) helps ensure invalid data is not entered into a table. C) makes the database easier to back up. D) makes the database easier to repair.

________ is a system whereby individual personal computers are connected to one another, allowing each participant to serve as either a client or a server

Fill in the blank(s) with the appropriate word(s).