XHTML - Interview Questions and Answers

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XHTML - General Questions

11) How can you define DTD in XHTML?

There are three types of DTD used in XHTML.

Strict DTD
Transitional DTD
Frameset DTD

You can use any of the DTD on the top of the XHTML document.

12) How to create a Hello World page in XHTML?

The Hello World page of XHTML looks like this:

  <?xml version="1.0" encoding="iso-8859-1"?>  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">   <html xml:lang="en" lang="en" xmlns="http://www.w3.org/1999/xhtml">  <head>  <title>Hello World</title>  </head>  <body>  <p>My first Web page.</p>  </body>  </html>  

13) What is the need of modular DTDs?

Modular DTD makes it easy to deploy new deployments. An application only supports subset of XHTML. For example a mobile phone, Internet TV etc. only require a subset of XHTML.

14) What is DOM?

DOM is a platform independent, World Wide Web Consortium (W3C) standard form of representation of structured documents as an object-oriented model. It is an application programming interface for accessing HTML and XML documents.

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