Correct option is A
Hypertext Transfer Protocol (HTTP) is the foundation of data communication on the web. It is a protocol used for transferring web pages from a web server to a browser. HTTP allows the exchange of data (such as HTML files, images, and other resources) between web servers and browsers.
Domain Name Server (DNS): It translates human-readable domain names (like www.example.com) into IP addresses but is not directly responsible for transferring content.
World Wide Web (WWW): The WWW is the system of interlinked hypertext documents and multimedia accessed via the internet, but it is not the foundation for data communication. It uses HTTP for transferring data.
Uniform Resource Locator (URL): A URL is an address used to access resources on the web but does not directly handle the transfer of web page content itself.
Additional Information:
- HTTP operates on a client-server model where the web browser acts as the client and the web server hosts the content.
- There are secure versions of HTTP, such as HTTPS, which adds encryption for secure communication over the web.
