How search engines operates?
Search Engines have two major functions- crawling and building an index, and providing answers by calculating relevancy& serving results.
1. Crawling and Indexing: Crawling and indexing the billions of documents, pages, files, news, videos and media on the World Wide Web.
2. Providing Answers: Providing answers to the user queries, most frequently through list of relevant pages, through retrieval and rankings.
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