a) Explain how a NoSQL key-value storage device stores key-value pair data. 

Question

b)i) Give THREE examples of when the use of a key-value pair storage device is appropriate.

ii) Give THREE examples of when the use of a key-value pair storage device is inappropriate.

c) Briefly explain how a NoSQL document database stores document data.

d) Describe THREE ways in which document storage devices differ from key-pair storage devices.

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