1.4 Data Loss Flashcards
Two areas where data loss can occur
hardware and software
factors affecting the cost of data loss
(1) how costly it will be to continue without the data
(2) how costly it will be to recreate the lost data (3) how costly it will be to notify users of data loss
causes of data loss (13)
- accidental deletion
- administrative errors
- poor data storage organization system (misplacement)
- building fires
- closing the program without saving the file
- computer viruses
- continued use after signs of failure
- data corruption
- firmware corruption
- natural disasters
- outsiders wanting to steal, alter or delete informatio
- physical damage of storage device
- power failure
most common causes of data loss (3)
accidental deletion, closing the program without saving the file, computer viruses
most rare causes of data loss (2)
building fires and natural disaster
solution to preventing data loss caused by: accidental deletion
use of file recovery software
solution to preventing data loss caused by: administrative errors
need for care
solution to preventing data loss caused by: poor data storage organization systems (misplacement)
restructure/improve the data organization
how is data lost due to a poor data storage organization system
data is misplaced and cannot be found
solution to preventing data loss caused by: building fires
storing data in different/multiple locations
solution to preventing data loss caused by: closing the program without saving the file
- need for care
- use of autosave features
solution to preventing data loss caused by: computer viruses
- need for antivirus software
- regular backups
solution to preventing data loss caused by: continued use after signs of failure
- need for self monitoring analysis and reporting technology (SMART)
- regular PC check-ups
- regular backups
solution to preventing data loss caused by: data corruption
regular backups
what is data corruption?
errors in computer data
what does SMART stand for?
self monitoring analysis and reporting technology
how does firmware corruption happen?
hard disk failure
solution to preventing data loss caused by: firmware corruption
regular backups
solution to preventing data loss caused by: natural disasters
- storing data in different/multiple locations
- regular backups
solution to preventing data loss caused by: outsiders’ malicious use of data
- regular backups
- use of firewall
- use of authentication methods
solution to preventing data loss caused by: physical damage of storage device
- regular backups
- need for care
solution to preventing data loss caused by: power failure
- use of UPS or backup battery
- regular backups
what does UPS stand for?
uninterruptable power supply
example of when data loss can have extreme consequences
medical records of a hospital patient being lost
