Which of the following is relatively slow when restoring only a small quantity of data?

A.
Backup tape cartridges.

B.
Tape libraries.

C.
Tape arrays.

D.
Hierarchical Storage Management (HSM)

Explanation:
While backup tape cartridges have cost effectiveness as an advantage, they are relatively slow when restoring only a small quantity of data. Tape drives should not be used for online data storage, especially where speedy data recovery is important.
Incorrect Answers:
B: You can use a high-capacity tape library to store, read, retrieve, and write multiple magnetic tape cartridges.
C: Tape arrays make use of special controllers which can stripe data over multiple tape drives simultaneously.
D: A Storage Management (HSM) application combines multiple storage media into a one logical unit.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 551-552, 563.