IT Fundamentals - Chapter 34
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Terms in this set (30) Hide definitions
Business continuity The ability of an organization to maintain its operations and services in the face of
a disruptive event.
Fault tolerance The ability of a system to continue performing when some part of the system has
failed, such as when there is a hardware failure.
Replication The act of copying information between devices so that if the primary device fails,
another device can take over for it.
, Redundancy A feature of an IT system so that it can continue to function even if a major
component fails because all components are duplicated and designed to switch
over automatically to the secondary components in case of failure.
Data redundancy The duplication of data, or the storage of the same data in multiple places to
achieve fault tolerance. This might include high availability databases, RAID arrays
and backups.
Network redundancy Multiple connections and duplicate components in a network, so that the network
still operates even with a hardware failure or lost connection. This might require
duplicate routers and switches, with each router connected to a different wide
area network (WAN).
RAID (redundant array of independent disks) A configuration of multiple hard drives to store data. It can use striping to
increase logical volume size and improve performance, or mirroring to ensure
that if one hard drive fails the data is still available from another hard drive.
RAID 0 (striping) A RAID configuration that uses space from two or more physical disks to increase
the disk space available for a single volume. Performance improves because data
is written evenly across all disks, but there is no redundancy.
RAID 1 (mirroring) A type of RAID array that duplicates data on one drive to another drive and is
used for fault tolerance. Also called mirrored volume.
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Flashcard sets Study guides
Yahoo Mail in 2026: Features, Benefi... Computer, Information, and Networ... security plus section 11 ( application ... Cybers
Teacher 26 terms 6 terms 17 terms 26 terms
charmanewomacks9... Preview rjohnson1972 Preview derra_Hewlett Preview kha
Terms in this set (30) Hide definitions
Business continuity The ability of an organization to maintain its operations and services in the face of
a disruptive event.
Fault tolerance The ability of a system to continue performing when some part of the system has
failed, such as when there is a hardware failure.
Replication The act of copying information between devices so that if the primary device fails,
another device can take over for it.
, Redundancy A feature of an IT system so that it can continue to function even if a major
component fails because all components are duplicated and designed to switch
over automatically to the secondary components in case of failure.
Data redundancy The duplication of data, or the storage of the same data in multiple places to
achieve fault tolerance. This might include high availability databases, RAID arrays
and backups.
Network redundancy Multiple connections and duplicate components in a network, so that the network
still operates even with a hardware failure or lost connection. This might require
duplicate routers and switches, with each router connected to a different wide
area network (WAN).
RAID (redundant array of independent disks) A configuration of multiple hard drives to store data. It can use striping to
increase logical volume size and improve performance, or mirroring to ensure
that if one hard drive fails the data is still available from another hard drive.
RAID 0 (striping) A RAID configuration that uses space from two or more physical disks to increase
the disk space available for a single volume. Performance improves because data
is written evenly across all disks, but there is no redundancy.
RAID 1 (mirroring) A type of RAID array that duplicates data on one drive to another drive and is
used for fault tolerance. Also called mirrored volume.
