SHA-1 hash size is 160 bits.

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Multiple Choice

SHA-1 hash size is 160 bits.

Explanation:
SHA-1 is defined to produce a 160-bit digest for every input, regardless of its length. This fixed output size is part of how the algorithm is designed: it processes data and ends with a 160-bit value, commonly shown as 40 hexadecimal characters. Because the digest length is fixed by the spec, the statement is true, and options suggesting variability or input-dependent length don’t fit. The concept you’re testing is that hash functions like SHA-1 have a constant output size, which for SHA-1 is 160 bits.

SHA-1 is defined to produce a 160-bit digest for every input, regardless of its length. This fixed output size is part of how the algorithm is designed: it processes data and ends with a 160-bit value, commonly shown as 40 hexadecimal characters. Because the digest length is fixed by the spec, the statement is true, and options suggesting variability or input-dependent length don’t fit. The concept you’re testing is that hash functions like SHA-1 have a constant output size, which for SHA-1 is 160 bits.

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