What is a URL, and what are its main components?

What is a URL, and what are its main components?

• A. A Uniform Resource Locator; scheme, domain, and port.
• B. A shortened text string used for search queries.
• C. Uniform Resource Locator; scheme, domain, path, and optionally port, query, and fragment.
• D. A protocol for transferring emails.

Answer: (C)

A URL stands for Uniform Resource Locator and identifies a resource on the Internet, telling a browser how to fetch it. It has several parts that each serve a purpose. The scheme shows the protocol to use, such as http or https. The domain is the host name where the resource lives, like www.example.com. The path points to a specific resource on that host, such as /folder/page.html. The port is optional and appears after the domain with a colon, like :8080, and is used when the default port isn’t being used. After the path, a question mark can introduce a query string, which carries parameters in key=value pairs. A fragment, introduced by a hash, refers to a location within the resource (like a page section) and isn’t sent to the server. A complete example would be https://www.example.com:443/path/to/resource?search=URL#section2. In short, a URL is a complete address that tells the browser what to fetch and how, with each part providing specific instructions.

A URL stands for Uniform Resource Locator and identifies a resource on the Internet, telling a browser how to fetch it. It has several parts that each serve a purpose. The scheme shows the protocol to use, such as http or https. The domain is the host name where the resource lives, like www.example.com. The path points to a specific resource on that host, such as /folder/page.html. The port is optional and appears after the domain with a colon, like :8080, and is used when the default port isn’t being used. After the path, a question mark can introduce a query string, which carries parameters in key=value pairs. A fragment, introduced by a hash, refers to a location within the resource (like a page section) and isn’t sent to the server. A complete example would be https://www.example.com:443/path/to/resource?search=URL#section2. In short, a URL is a complete address that tells the browser what to fetch and how, with each part providing specific instructions.