Answer : 4. "यूनिफॉर्म रिसोर्स लोकेटर "
Explanation :

1. URL stands for Uniform Resource Locator and is used to specify an address on the World Wide Web.

2. A URL is the basic network identifier for any resource connected to the Web.

3. A typical URL might have the form http://www.example.com/index.html, which points to.

4. It is also called a web-address.