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What does Uniform Resource Identifier (URI) refer to?

  1. A complex method for network routing

  2. A standardized method of referring to web resources

  3. A proprietary address format for databases

  4. A method of identifying software applications

The correct answer is: A standardized method of referring to web resources

A Uniform Resource Identifier (URI) refers to a standardized method of referring to web resources, which includes both Uniform Resource Locators (URLs) and Uniform Resource Names (URNs). URIs serve as a way to identify a resource on the internet, enabling users to locate and interact with various web-based information. This standardization ensures that resources are consistently and uniquely identified, allowing for interoperability across different platforms and technologies. The context of the correct answer highlights the importance of URIs in web navigation and resource identification. While network routing, database formats, and software application identification are essential components of networking and software development, they do not accurately encapsulate the function and purpose of URIs. URIs specifically focus on the identification and location of resources on the internet, setting them apart from these other concepts.