Data loss Flashcards
what does the cost of data loss depend on
how costly it may be to go on without data
how costly it may be to recreate the data
how costly it may be to notify users of data loss
solution for accidental deletion
use of file recovery software
solution for administrative errors
need for care
solution for poor data storage organization system
restructure data organization
solution for building fires
store data in two locations
solution for closing the program without saving the file
need for care
use autosave features
solution for computer viruses
antivirus softwares
regular backups
solution for continued use after signs of failure
need for self monitoring analysis and report technology
need for PC check up
regular backups
solution for firmware corruption
regular backups
solution for natural disasters
store data in two locations
regular backups
solution for outsiders wanting to delete/alter/steal info
regular backups
firewall
authentication methods
solution for physical damage of the storage device
regular backup
need for care
solution for power failure
need for uninterruptable power supply (UPS)
regular backups
list 5 methods used to prevent data loss
regular backup of files using hard disks or magnetic tapes
firewall installation
storing data in two or more locations (offsite storage)
installation of antivirus software
online auto save backup
what is redundancy
a failsafe method where one duplicates storage devices and stored data of a computer system to secure the stored data
what is a failover system
computer system which is on standby capable of switching to a spare computer system in case of hardware or network failure or software malfunction
what is the difference between failover and switchover
failover is automatic whilst switchover requires a degree of human intervention
what are some ways for managing releases and software updates
patches
upgrades
updates
releases
what are patches
used by software companies to update applications by fixing known bugs
what are some risks of patches
can introduce new bugs as a side effect
what are upgrades
contains new functionalities / characteristics , bug fixes (upgrades are usually bought)
what are updates
improves a product in a minor way by adding new functionalities or fixing known bugs (usually free)
what are releases
final, working versions of software applications that have already gone through alpha, beta software testing
