Question

_______ is a technology in which extra copies of data are stored on two or more hard drives to ensure that critical data is not lost.

Answer 1

Answer: RAID(Redundant Array of Independent Disks)

Explanation:

Redundant Array of Independent Disks is defined as the computing  technology that functions by uniting various hard disk drives for data redundancy to turn into a single unit .It helps in sacking the data into storage .

• This technology helps in performance improvement as well as saving storage space.It increase flexibility of the system so that data can be accessed quickly.
• It reduces the chances of losing data as multiple copies of data are created in drive to work against failure.