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  • Difficulty Level : Easy
  • Last Updated : 25 Nov, 2021

URI stands for Uniform Resource Identifier. It is a technical term that used for the names of all resources Connected to the World Wide Web. URIs established the protocols over the internet to conduct the connection between among resources.

Uniform Resource Identifier (URI) is a character of sequence that identifies a logical (abstract) or physical resource — usually, but not always, connected to the internet. A URI used to distinguish one resource from another. URIs allow internet protocols to facilitate interactions between and among these resources. The strings of characters incorporated in a URI serve as identifiers, such as a scheme name and a file path.

How Uniform Resource Identifiers work :  
URI basically used to extensible way to identify internet resources. There may be different type of resources Identifier that can be used for the same context, regardless of the mechanism used to access those resources. 

URI used to Identify different type of resources like:  

  • Electronic Documents
  • Webpages
  • Images
  • Information Sources with a consistent purpose

Every URL is an URI but every URI is not an URL. URNs are URL but not vice Versa

Type of URI : There are two type of URI :

    

  1.  Fragment URI (URN) –
    URN stands for Universal Resource Name. it refer the location of the content using anchor Identifier. URNs are URL but not vice Versa. There is a prefix URN for all the URNs. When you specify “access mechanism, location’’ And URI becomes URL.
  2. Relative URI(URL)
    URL stands for Uniform Resource Locater. URI is the super set of URL. It may contain URN or Fragment URI that define the document inside the content. URL has Information about how to fetch / acquire a resources from its location. URLs always begins with a protocol (Most obvious, HTTP). It will Have the details about the host name and also have the path. A URL is used When a client is raising a request to the server for the services
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