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Which of the following hash functions is considered good practice?
Practice Questions
Q1
Which of the following hash functions is considered good practice?
A function that returns the key itself
A function that uses a prime number
A function that always returns the same index
A function that is linear
Questions & Step-by-Step Solutions
Which of the following hash functions is considered good practice?
Steps
Concepts
Step 1: Understand what a hash function is. A hash function takes an input (or 'key') and produces a fixed-size string of bytes, usually a number.
Step 2: Know that a good hash function should distribute keys evenly across a hash table to avoid collisions (when two keys hash to the same index).
Step 3: Learn that using a prime number in the hash function can help achieve this even distribution.
Step 4: Recognize that a good hash function should also be fast to compute and should minimize the chances of collisions.
No concepts available.
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