Understanding Linear Search

The video tutorial explains the concept of linear search, a simple search algorithm that compares each element in a list sequentially until it finds a match. An example is provided where the number 38 is searched in a list. The tutorial highlights the ease of coding linear search and its ability to work on unsorted lists. However, it also points out the inefficiency in terms of time and processing power when dealing with large datasets.

What is the primary operation of a linear search?

• It compares the target with each item in the list sequentially.

• It uses a binary tree structure.

• It divides the list into two halves.

• It sorts the list before searching.

In the example given, what number is being searched for using linear search?

• 42

• 15

• 38

• 27

What happens when a match is found in a linear search?

• The search stops as the target is found.

• The search continues to find more matches.

• The search restarts from the beginning.

• The list is sorted.

What is one advantage of using a linear search?

• It requires the list to be sorted.

• It is complex to code.

• It works on unsorted lists.

• It is the fastest search algorithm.

What is a disadvantage of linear search?

• It only works on sorted lists.

• It takes a long time for large lists.

• It requires a lot of memory.

• It is difficult to implement.