5. Define the term URL. Explain the components that make up the url.

URL stands for Uniform Resource Locator.
URL is the global address of documents and resources on the World Wide Web (WWW). It is a specific character string which is a reference to an Internet source.
An example of URL: http://google.com

http
The first part of the URL is a protocol identifier, which indicates which protocol to use (eg. HTTP, FTP, etc.).
google.com
The second part of the URL is a resource name, which specifies the IP address or the domain name (ie. google.com) where the resource is located.

These two parts (protocol identifier and resource name) are separated by a colon and two forward slashes. ://