Which of the following is not a component of search engine.
Stack is not a component of search engine..
In computing, a solution stack or software stack is a set of software subsystems or components needed to create a complete platform such that no additional software is needed to support applications. Applications are said to "run on" or "run on top of" the resulting platform.
A search engine is an information retrieval software program that discovers, crawls, transforms and stores information for retrieval and presentation in response to user queries. A search engine normally consists of four components e.g. search interface, crawler(also known as a spider or bot),indexer, and database.
Search engine optimization (SEO) is the process of optimizing a website so that it performs well in organic search. Ranking highly for search terms which are known as keywords increases the visibility of a website and leads to a higher number of visitors to the actual website. Generally there are three basic components of a search engine as listed below: Web Crawler. Database. Search Interfaces.