Multiple choice technology security

Data hashing will

  1. Ensure that the data has not been tampered with

  2. Ensure that the session is valid

  3. Ensure that the user is valid

  4. All of the above
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A Correct answer
Explanation

Data hashing creates a fixed-size signature from input data using a cryptographic hash function. Any change to the original data produces a completely different hash value, making tampering detectable. Hashing does not validate sessions or user identity - those are separate authentication mechanisms.

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