JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III WEB TECHNOLOGIES Previous Question Paper (January/February - 2023 - R18)
Question paper consists of Part A, Part B. Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. In Part B, Answer any one question from each unit. Each question carries 10 marks.
Part A
List any two advantages of PHP.
Answer
Two advantages of PHP are that it is an open-source, server-side scripting language that is free to use, and it offers excellent cross-platform compatibility, running seamlessly on various operating systems like Windows, Linux, and macOS.
Explain the various types of arrays supported by PHP.
Answer
PHP supports three types of arrays: Indexed arrays, which use numeric indices starting from zero to access elements; Associative arrays, which use named keys instead of numeric indices to store values; and Multidimensional arrays, which are arrays containing one or more arrays as elements.
What is XHTML?
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Explain the features of XML.
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Enumerate the differences between a servlet and an Applet.
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Explain the uses of Servlets.
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What is the need of JSP page?
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Explain the JSP expression using an example.
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What is the scope of variables in java Script?
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Explain the use of “this” operator in Java Script.
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Part B
With example, explain the different control structures used in PHP.
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Explain the execution of queries in PHP.
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In detail, explain the various file handling operations in PHP.
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Define Document Type Definition (DTD) in XML. What is difference between internal and External DTD?
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Give an overview of defining basic XML tags.
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Explain the advantages of XML schemas over DTDs.
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Differentiate between DOM and SAX parsers in java.
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Present an overview of the servlet API.
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Explain with suitable example how servlet handle: i) HTTP get requests ii) HTTP post requests.
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Enumerate the differences between single threaded and multithreaded Servlet method.
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What are sessions? How do you enable and disable sessions using JSP?
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Explain the anatomy of a JSP page.
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Write brief note on JSP Declarations.
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Explain the usage of java beans in a JSP page.
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Explain how database is accessed using a JSP page.
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Explain the various operators and datatypes available in Java Script.
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Explain the event handlers in Java Script.
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Write a Java Script to check whether the given year (4 digit) is leap year or not.
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