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Which among the following statement(s) is (are) true? (A) A hash function takes a message of arbitrary length and generates a fixed length code. (B) A hash function takes a message of fixed length and generates a code of variable length. (C) A hash function may give same hash value for distinct messages. Choose the correct answer from the options given below:

Which among the following statement(s) is (are) true? (A) A hash function takes a message of arbitrary length and generates a fixed length code. (B) A hash function takes a message of fixed length and generates a code of variable length. (C) A hash function may give same hash value for distinct messages. Choose the correct answer from the options given below: Correct Answer (A) and (C) only

The correct answer is option 3.

Key Points

A hash function is defined as any function that can be used to map data of the arbitrary size of data to fixed-size data.

Definition of hash function Statement 1 is correct and Statement 1 is incorrect.

 A hash function may give the same hash value for distinct messages. Yes, it's true. If N%10 is a Hash function. It gives the same values for 101, 11,21,31 as 1.

Hence statement III is correct.
∴ Hence the correct answer is (A) and (C) only.

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