Question

which of the following techniques can be used for security of data​

Answer 1

Answer:

Encryption. Data encryption software effectively enhances data security by using an algorithm (called a cipher) and an encryption key to turn normal text into encrypted ciphertext. To an unauthorized person, the cipher data will be unreadable. That data can then be decrypted only by a user with an authorized key.

Explanation:

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Answer 2

Explanation:

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