Download JNTUH MCA 4th Sem R15 2022 March-April 824AA Marchapril Web Technologies Question Paper

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Code No: 824AA

R20

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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA IV Semester Examinations, March/April - 2022

WEB TECHNOLOGIES

Time: 3 Hours Max.Marks:75

Answer any five questions

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All questions carry equal marks

1. a) Explain various Loop Control Structures in PHP with syntax.
   b) Develop a PHP program to connect MySQL database and perform DML operations. [7+8]
2. a) Explain String operations in PHP with an example.
   b) Develop a PHP program to count the number of lines, words, character in the given file. [7+8]

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3. a) What is a Parser? Compare and Contrast DOM and SAX Parsers.
   b) Explain with an example, how can you check an XML document is both valid and well formed document? [7+8]
4. a) What is a XML? Explain its features.
   b) Explain document object Model. [7+8]
5. a) Explain the Servlet architecture and the various life cycle methods invoked by the servlet container.
   

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   b) List and explain the classes of javax.servlet package. [8+7]
6. a) Write and discuss a Servlet, program for reading Servlet parameters and Reading initialization parameters.
   b) What is Session? Discuss how the Session management is supported by Servlets? [8+7]
7. a) What are JSP Directive Elements? Discuss each of them with an example.
   b) Explain how error handling and debugging will be done in JSP. [8+7]

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8. a) Discuss in detail the predefined methods of DATE and STRING objects of Java Script with an example.
   b) Write about JavaScript operators. [8+7]

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