The web search tool that allows users to find content online is a search engine. So the answer is A. Search engine.

A search engine is a software system designed to search for information on the World Wide Web. The search results are generally presented in a line of results, often referred to as search engine results pages (SERPs). Search engines like Google, Bing, and DuckDuckGo use web crawlers or “spiders” to explore the internet, indexing websites and their content. This indexing process involves analyzing the text, images, and other media on web pages to create a searchable database. When a user enters a query, the search engine uses algorithms to determine the most relevant and authoritative results based on its index. This makes it easy for users to quickly find information on the internet.

Let’s look at why the other options are not the correct answer.

B. File path: A file path specifies the location of a file or directory on a computer system or network. It is not used for searching the entire internet for content.

C. Host name: A host name is a label assigned to a device (like a computer or server) on a network. It identifies the device to other machines on the network, but it doesn’t help you search for content on the web.

D. Hypertext Transfer Protocol (HTTP): HTTP is the foundation of data communication for the World Wide Web. It defines how messages are formatted and transmitted, but it is not a search tool. It is the protocol that allows web browsers and servers to communicate.