Which of the following is not one of the three primary functions that on-line direct-access systems can serve?
Which of the following is not one of the three primary functions that on-line direct-access systems can serve?
The correct option is B Backup
Backup is not one of the three primary functions
that on-line direct-access systems can serve.
In information technology, a backup, or the process
of backing up, refers to the copying into an archive file of computer data so
it may be used to restore the original after a data loss event. The verb form
is "back up" (a phrasal verb), whereas the noun and adjective form is
"backup".
Backup refers to the copying of physical or virtual
files or databases to a secondary site for preservation in case of equipment
failure or other catastrophe. The process of backing up data is pivotal to a
successful disaster recovery (DR) plan.
In computer storage, direct access is the ability
to obtain data from a storage device by going directly to where it is
physically located on the device rather than by having to sequentially look for
the data at one physical location after another. A direct access storage device
(DASD) has the electrical or electromechanical means to be immediately
positioned for reading and writing at any addressable location on the device.
Backup is not one of the three primary functions that on-line direct-access systems can serve.
In information technology, a backup, or the process of backing up, refers to the copying into an archive file of computer data so it may be used to restore the original after a data loss event. The verb form is "back up" (a phrasal verb), whereas the noun and adjective form is "backup".
Backup refers to the copying of physical or virtual files or databases to a secondary site for preservation in case of equipment failure or other catastrophe. The process of backing up data is pivotal to a successful disaster recovery (DR) plan.
In computer storage, direct access is the ability to obtain data from a storage device by going directly to where it is physically located on the device rather than by having to sequentially look for the data at one physical location after another. A direct access storage device (DASD) has the electrical or electromechanical means to be immediately positioned for reading and writing at any addressable location on the device.
