At the minimum, what must an attribute for an element contain?

Which is the major difference between an HTML document and an XML document?

If I have a person element with a single gender, a single address, and a single gpa as children, which of the following would you put in the DTD to specify that gpa is optional?

The number of attributes for an element in a XML Document does NOT matter if:

XML document by default preserves white-space characters in element content.

Which is a similarity between XSLT, XQuery, XLink and XPointer?

What is this code an example of?

Asynchronous Javascript and XML (Ajax) is technique for creating better, faster, and more interactive web applications. In addition to JavaScript and XML on the back end, which technologies are commonly used to craft AJAX experiences on the front end?

When working with Ajax applications, which is faster, XML or JSON?

Xml documents must be evaluated with an xml ____.

Xml data is ____.