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Quiz: Data Structures Mock tests on Hash.

Quiz: Data Structures Mock tests on Hash.

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Quiz Questions And Answers

A good hash function and implementation algorithm are essential for good -

hash history
hash table performance
hash file

A hash table uses a hash function to compute an index into an array of-


In computing, a hash map is a data structure that implements an associative array abstract data type, a structure that can map-

object to tag
the diagram
keys to values

Distinct array position for every possible key known as-

common addressing
indirect addressing
direct addressing

Ideally, the hash function will assign each key to-

an empty cell
a project table
a unique bucket

The hash function is a function that computes the .................. of the key in the array.


How Hash table data structure stores data?

in associative manner
in a random style
in an unknown style

What is the name of the situation, when several elements are competing for the same bucket in the hash table?


A hash function takes a message of arbitrary length and generates a -

fixed length code
object data

Which hashing method can be used to avoid collision?

unique hashing
improper hashing
uniform hashing

A perfect hash function can be used to create ...................... that has no collisions.

a local graph
a perfect hash table
a global list

In which hashing the interval between probes is computed by a second hash function?

Small hashing
Double hashing
Mini hashing

Which hashing ensures constant lookup time in the worst case, and constant amortized time for insertions and deletions?

Cuckoo hashing
Parrot hashing
Corw hashing

One interesting variation on double-hashing collision resolution is known as-

Alex hashing
Jack hashing
Robin Hood hashing

Which hashing method employs two different hash functions, h1(x) and h2(x), for the hash table?

Typical hashing
Hookup hashing
2-choice hashing

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