Ch 12- Key Terms Flashcards
Disaster recovery plan (DRP)
Documented set of procedures the defines how an organization can recover and protect the IT infrastructure in the event of a disaster
Business continuity plan (BCP)
Documented set of procedures and information about the organization that is collected and maintained so that the organization can continue operations in the event of a disaster
Mean time between failures (MTBF)
The average time a hardware component will function before failing, usually measured in hours
Mean time to repair (MTTR)
The average time it takes to repair a hardware component
Recovery time objective (RTO)
The maximum amount of time a system can be down after a failure or disaster
Recovery point objective (RPO)
The maximum amount of time that data might be lost due to a disaster
Redundant system
A system that is used as a backup to the primary system in case of failure
Failover
The process of switching to a redundant system upon failure of the primary system
Failback
The process of restoring operations to the primary system after a failure
Cold site
A backup site used in the event of a failure, which includes only network connectivity and does not include any backups of the original site or hardware
Warm site
A backup site used in the event of a failure that is somewhere between a cold site and a hot site; it includes some hardware and some backups although the backups could be a few days old
Hot site
A backup site used in the event of a failure that is a duplicate of the original site with complete hardware and backups
Full backup
Starting point for incremental and differential backups that can be restored independently and contains all information on the hard disk
Incremental backup
A backup system that backs up the files that have changed since the last full or incremental backup and requires all incremental backups to perform a restore
Differential backup
A backup system that backs up all files that have changed since the last full backup and requires the last full backup to perform a restore.
Replica
A mirrored copy of data created between 2 redundant hardware devices
Synchronous replication
A process of replicating information over a network to a secondary device where the system MUST WAIT for the replication to copy the data to the secondary device before proceeding
Asynchronous replication
A process of replicating information over a network to a secondary device where the system IS NOT REQUIRED TO WAIT for the replication to copy the data to the secondary device before proceeding
Snapshot
A method of capturing the state of a virtual machine at a specific point in time
Fault tolerance
A feature of computer system design that increases reliability by adding multiple hardware components so that the system can continue to function in the event of a single component failure
Load balancing
A means of distributing workloads across multiple computers to optimize resources and throughput and to prevent a single device from being overwhelmed
Mirror site
A duplicate website used to provide improved performance and to reduce network traffic
