Data loss Flashcards

1
Q

what does the cost of data loss depend on

A

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

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2
Q

solution for accidental deletion

A

use of file recovery software

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3
Q

solution for administrative errors

A

need for care

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4
Q

solution for poor data storage organization system

A

restructure data organization

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5
Q

solution for building fires

A

store data in two locations

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6
Q

solution for closing the program without saving the file

A

need for care
use autosave features

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7
Q

solution for computer viruses

A

antivirus softwares
regular backups

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8
Q

solution for continued use after signs of failure

A

need for self monitoring analysis and report technology
need for PC check up
regular backups

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9
Q

solution for firmware corruption

A

regular backups

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10
Q

solution for natural disasters

A

store data in two locations
regular backups

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11
Q

solution for outsiders wanting to delete/alter/steal info

A

regular backups
firewall
authentication methods

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12
Q

solution for physical damage of the storage device

A

regular backup
need for care

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13
Q

solution for power failure

A

need for uninterruptable power supply (UPS)
regular backups

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14
Q

list 5 methods used to prevent data loss

A

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

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15
Q

what is redundancy

A

a failsafe method where one duplicates storage devices and stored data of a computer system to secure the stored data

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16
Q

what is a failover system

A

computer system which is on standby capable of switching to a spare computer system in case of hardware or network failure or software malfunction

17
Q

what is the difference between failover and switchover

A

failover is automatic whilst switchover requires a degree of human intervention

18
Q

what are some ways for managing releases and software updates

A

patches
upgrades
updates
releases

19
Q

what are patches

A

used by software companies to update applications by fixing known bugs

20
Q

what are some risks of patches

A

can introduce new bugs as a side effect

21
Q

what are upgrades

A

contains new functionalities / characteristics , bug fixes (upgrades are usually bought)

22
Q

what are updates

A

improves a product in a minor way by adding new functionalities or fixing known bugs (usually free)

23
Q

what are releases

A

final, working versions of software applications that have already gone through alpha, beta software testing