JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD MCA 2023 WEB TECHNOLOGIES Previous Question Paper (March/April - 2023 - R17)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Write the features of PHP.
Answer
PHP is a widely-used server-side scripting language designed for web development. Its key features include:
- Server-side execution: Scripts are executed on the server, and the result is sent to the client as plain HTML.
- Cross-platform compatibility: PHP runs on all major operating systems including Windows, Linux, and macOS.
- Database support: It supports a vast range of databases, most notably MySQL, PostgreSQL, and Oracle.
- Open source: PHP is free to download and use, with a large community providing extensive documentation and support.
- Ease of learning: It features a simple syntax that allows developers to create dynamic web pages quickly.
Write the features of XHTML.
Answer
XHTML (Extensible HyperText Markup Language) is a stricter, XML-based version of HTML. Its features include:
- Well-formedness: Every document must be well-formed, meaning all tags must be properly nested and closed.
- Case sensitivity: All XHTML tags and attributes must be written in lowercase.
- Strict syntax: Attribute values must always be enclosed in quotes, and all attributes must have values.
- Extensibility: Being based on XML, it allows for the integration of other markup languages like MathML or SVG.
- Device independence: Its strict structure ensures better rendering across various browsers and mobile devices.
Write the advantages of Java servlet.
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Compare servlet Vs JSP.
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What is AJAX frame work? Explain it briefly.
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Part B
Discuss various string functions in PHP.
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Give PHP code to fetch data from data base.
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Explain the various control structures in PHP.
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Discuss Arrays in PHP with examples.
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Explain the properties of XML.
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Describe DOM model in detail.
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Mention the steps to parse XML file using SAX processor.
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Explain External DTD in detail.
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Explain the life cycle of Java Servlet.
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Design Java Servlet to display data from database table.
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What is Cookie? How do you deal with Java Servlet?
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Describe Request Dispatch class in detail.
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Explain the anatomy of JSP.
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Describe JSP elements in detail.
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Elaborate JSP implicit objects in detail.
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Write JSP program to deal with action events.
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Explain the data types in java script.
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Write java script code to validate email.
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Explain the different event handlers in java script.
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Write java script to create a registration form and validate it.
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