Flashcards
Databases revision
Flashcards do conjunto (9)
- 1What is a database?persistent organised store of data on a computer system.
- 2What do databases need to be.1. accurate.
2.up to date.
3.availability.
4.protected. - 3Database administrators protect their data from.1.errors
2.loss
3. insufficient data
4.inconsistencies
5.unauthorised access - 4Database errors can result in.1. delays.
2. embarrassment.
3.risk of damage to property.
4. death. - 5what is the definition of Data securityData security refers to keeping data safe.
- 6Data can be lost because of.1.Catastrophes.
2.accidents.
3.malicious action. - 7Data is protected by having.1. Back ups.
2.Servers in several locations.
3.Back ups in off site locations.
4. Restricting access. - 8Definition of Data Integrity.The accuracy accuracy and consistency of data.
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- Descrição
- Year 11 Computing FlashCards sobre Databases revision, criado por David Jarvis em 26-04-2017.
- Criado por
- David Jarvis
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