Businesses sometimes achieve uninterruptible service by using a technology known as to keep a mirror copy of all their data.

a) rfid
b) raid
c) wpa
d) ontrack

Option b is the correct answer for the above question.

Explanation:

RAID is a data storage technology that is used to store the data virtually. It keeps a copy of all data so that the data can be recover when it lost from the physical storage. Generally, logical storage is also physical for the computer system. It means that the disk is divided into two parts some parts of the system are physical and some are logical.

The question asked about the technology which solves the problem of interrupting the service. The technology can be RAID as described above . hence Option b is the correct answer while other is not because--

answer; availability;