Planning for the Worst Flashcards
the average time between system breakdowns. _____ is used to measure performance, seafety, equipment deisgn, especially for critical or complex assets, like generators or airplanes. Also used to determine reliability of an asset
Mean Time Between Failures (MTBF)
Measures the average time it takes to repair a network device
when it breaks
Mean Time To Repair (MTTR)
The longest period of time that an organization can tolerate lost data being unrecoverable.
Recovery Point Objective (RPO)
The length of time it takes after an event to resume normal business operations and activities
Recovery Time Objective (RTO)
The longest period of time a business can be inoperable without causing irrevocable business failure
Maximum Tolerable Downtime (MTD)
Only conducts a backup of the contents of a drive that have changed since the last full or incremental backup
Incremental Backup
Only conducts a backup of the contents of a drive that has changed since the last full backup
Differential Backup
All of the contents of a drive are backed up
Full Backup
A site that has tables, chairs, bathrooms, and possibly some technical items like phones and network cabling
Cold Site
A site that has computers, phones, and servers but they might require some configuration before users can start working
Warm Site
A near duplicate of the original site of the organization that can be up and running within minutes
Hot Site
Allows the combination of multiple physical hard disks into a single logical hard disk drive that is recognized by the operating system
Redundant Array of Independent Disks (RAID)
Provides data striping across multiple disks to increase performance
RAID 0
Provides redundancy by mirroring the data identically on two hard disks
RAID 1
Provides redundancy by striping data and parity data across the disk drives
RAID 5
