Question

Using a linear search to find a value that is stored in the last element ofan array of 20,000 elements,

____________ element(s) must be compared.
a. 20,000
b. only the first
c. only half
d. 2000
d. None of these

Answer 1

In a linear search for a value located in the last position of a 20,000-element array, all 20,000 elements must be compared.

The correct option is A.

Step-by-step explanation:

When using a linear search to find a value in an array, the search will examine each element in the array sequentially until the desired value is found or the end of the array is reached.

If the value being searched for is stored in the last element of an array of 20,000 elements, the linear search algorithm will have to compare each element one by one starting from the first element.

Hence, 20,000 elements must be compared to find the value.

The correct option is A.