Which of the following tape formats can be used to backup data systems in addition to its original intended
audio uses?

A.
Digital Video Tape (DVT).

B.
Digital Analog Tape (DAT).

C.
Digital Voice Tape (DVT).

D.
Digital Audio Tape (DAT).

Explanation:
Digital Audio Tape (DAT) can be used to backup data systems in addition to its original intended audio uses.
Incorrect Answers:
A: Digital Video Tape (DVT) is not used to backup data systems.
B: Digital Analog Tape (DAT) is not a defined type of tape; DAT stands for Digital Audio Tape.
C: Digital Voice Tape (DVT) is not a defined type of tape; DVT stands for Digital Video Tape.

Krutz, Ronald L. and Russel Dean Vines, The CISSP Prep Guide: Mastering the Ten Domains of Computer
Security, John Wiley & Sons, New York, 2001, p. 70