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___________ is widely used today for protecting data in transit in a variety of applications such as data transfer on the Internet, and on cellular phone networks.

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___________ is widely used today for protecting data in transit in a variety of applications such as data transfer on the Internet, and on cellular phone networks.

(a) Encryption

(b) Data mining

(c) Internet Security

(d) Architectural security

I have been asked this question during a job interview.

This interesting question is from Encryption and Its Applications in chapter Database Programming Techniques of Database Management

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The correct option is (a) Encryption

To explain: Encryption is also used to carry out other tasks, such as authentication.

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