Test: Searching - 1 - CUET Humanities MCQ

Linear search checks the elements of a list, one at a time, without skipping any element.

A perfect hash function maps every input key to a unique index in the hash table.

It is a technique used for performing insertions, deletions and finds in constant average time.

In Linear Search Algo, the worst case occurs when element is at the end or not present in array at all as we have to compare with each element of array to conclude. Hence, this option is correct.

The worst case behavior of linear search algorithm is seen when the item is the last element in the array or is not there at all.

The element may be found in the first comparison also. Hence, the minimum number of comparisons required to search an element in binary search is one.

This is the most essential condition required for performing binary search as correct values of pointers; Low, Mid and High can only be provided when the list is in an increasing order.

This is the statement for binary search precondition.

Hash tables store data in the form of arrays. Array works on the data index basis. Access of data becomes very fast if we know the index of the desired data.

Linear Hashing is a dynamically updateable disk-based index structure which implements a hashing scheme and which grows or shrinks one bucket at a time. The index is used to support exact match queries, i.e. find the record with a given key.