July 2026
Intermediate
729 pages
33h 9m
English
Content preview from Ethical Hacking
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9.8 Practice Questions
Now you can test your knowledge of password cracking with 30 questions.
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Which property does a cryptographic hash function not have?
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A. Deterministic
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B. Avalanche effect
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C. Dispersion
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D. Efficient calculation
The correct answer is D, "Efficient computation." A hash function must be deterministic, meaning it should always produce the same hash value for the same input. This is the only way to verify the integrity of data using a hash value. Even a minimal change in the input, such as changing a single bit, should produce a completely different, unpredictable hash value. This is also known as the avalanche effect. The hash values should be evenly distributed across the possible hash space to avoid hot spots. ...
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I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.