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(1 point possible) For increase security, data should be protected through encryption techniques. 1- At rest, when...

(1 point possible)
For increase security, data should be protected through encryption techniques.
1- At rest, when stored on disk.
2-In transit, when exchanged across the network. 
3-At rest and in transit
4-Only if it contains credit card numbers.

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Answer #1

For increase security, data should be protected through encryption techniques.

At rest and in Transit.

Explanation:

Basically encryption techniques are used to protect the data from unauthorized users. So It is highly essential to encrypt the data during transit period. But to improve the security it will be better to store the data in encrypted manner during rest also. Because unfortunately if some one hack your system then the hacker may not be able to access the original data.

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