What should you do if you want to make a copy of a database in a secure location?

A) Back up the database.
B) Compact and repair the database
C) Convert the database.
D) Split the database.

A proportional controller:

A) is designed to eliminate the cycling associated with on/off control.
B) allows the final control element to take intermediate positions between on and off.
C) permits analog control of the final control element.
D) all of these.

Which of the following is NOT a type of optical media?

A) CD-R
B) eSATA
C) BD-ROM
D) DVD-RW

Which of the following reduces buyer power?

A) Globalization
B) Loyalty programs
C) Intermediation
D) Internet searching