Introduction to Computer Networks and Cybersecurity

Chapter 3

XML-Based Web Services

The learning goals for this chapter are as follows:

• Explore the use of the eXtensible Markup Language (XML) in Web applications
• Understand the client/server architecture for Web applications
• Learn the manner in which a client’s Hypertext Markup Language (HTML) interacts with a server’s Hypertext Preprocessor (PHP) using both the Get and Post methods
• Explore the use of Asynchronous JavaScript and XML (AJAX) from the standpoint of both client and server and its impact on the Hypertext Transfer Protocol (HTTP)
• Learn the advantages and disadvantages of XML
• Examine the structure and contents of XML documents, as well as the standard manner in which they are accessed and manipulated

3.1 Overview of XML-Based Web ...