1. What is XML?


XML stands for extensible markup language and purpose of it is describing data.


XML, Extensible Markup Language, is an open, text based markup language that provides structural and semantic information to data.


2. What is the version information in XML?


"Version" tag shows which version of XML is used.


3.What is ROOT element in XML?


XML documents must contain one element that is the parent of all other elements. This element is called the root element.

<root>
  <child>
    <subchild>.....</subchild>
  </child>
</root>