Google Works in SEO:
You put to input query or keywords in Google (search engine). First, the query to store from Google’s Web Server. It is sending the query to the Google’s Index Server. The content inside the Index Servers is similar to the index in the back of a book. It says which pages contain the words that fetch the query. The keyword or query goes to the Document Servers, which actually recall the stored documents. Description or Summaries are given to report each search result. The search results are returned to the user in a minute.