Which identifier uniquely references an internet resource and can be used in both remote and local contexts?

Which identifier uniquely references an internet resource and can be used in both remote and local contexts?

• A. URL
• B. IP Address
• C. Domain Name
• D. Uniform Resource Identifier (URI)

Answer: (D)

The idea being tested is that a URI is a universal identifier for a resource that works in both local and remote contexts. A URI is any string that identifies a resource using a defined syntax, and it can refer to something on the web or a local file. For remote resources you commonly see http:// or https:// URIs, which tell you how to access the resource, while for local resources you can have file:/// paths that point to files on a local machine. This flexibility makes a URI the most general and appropriate choice for uniquely identifying a resource across different contexts. A URL is a specific type of URI that focuses on how and where to locate the resource, rather than the identity of the resource itself. A domain name points to a host, not to a specific resource. An IP address identifies a host or endpoint, not the resource by itself. A URN identifies a resource by name within a namespace, which is not as commonly used for everyday addressing.

The idea being tested is that a URI is a universal identifier for a resource that works in both local and remote contexts. A URI is any string that identifies a resource using a defined syntax, and it can refer to something on the web or a local file. For remote resources you commonly see http:// or https:// URIs, which tell you how to access the resource, while for local resources you can have file:/// paths that point to files on a local machine. This flexibility makes a URI the most general and appropriate choice for uniquely identifying a resource across different contexts.

A URL is a specific type of URI that focuses on how and where to locate the resource, rather than the identity of the resource itself. A domain name points to a host, not to a specific resource. An IP address identifies a host or endpoint, not the resource by itself. A URN identifies a resource by name within a namespace, which is not as commonly used for everyday addressing.