سوال ۱۶ کنکور ارشد مهندسی کامپیوتر ۱۴۰۱

PASSAGE 1 (excerpt):

"The usefulness of a search engine depends on the relevance of the results set it gives back. While there may be millions of web pages that include a particular word or phrase, some pages may be more relevant, popular, or authoritative than others. Most search engines employ methods to rank the results to list the 'best' results first. How a search engine decides which pages are the best matches, and in what order the results should be presented, varies widely from one engine to another."

Question: There are different search engines in terms of __________.