# MCQ IN COMPUTER SCIENCE & ENGINEERING

## COMPUTER SCIENCE AND ENGINEERING

### DATA STRUCTURES

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which mathematical function do all hashing algorithms use?
 A MOD B DIV C EXP D COS E RAND
Explanation:

Detailed explanation-1: -March 01, 2022. Division Modulo Method is the simplest method of hashing. In this method, we divide the element with the size of the hash table and use the remainder as the index of the element in the hash table.

Detailed explanation-2: -A simple hashing function can be defined as follows: h(k) = k mod m.

Detailed explanation-3: -With modular hashing, the hash function is simply h(k) = k mod m for some m (usually, the number of buckets). The value k is an integer hash code generated from the key. If m is a power of two (i.e., m=2p), then h(k) is just the p lowest-order bits of k.

Detailed explanation-4: -It uses hash tables to store the data in an array format. Each value in the array has been assigned a unique index number. Hash tables use a technique to generate these unique index numbers for each value stored in an array format. This technique is called the hash technique.

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