JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III WEB TECHNOLOGIES Previous Question Paper (May - 2019 - R16)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question in Part B carries 10 marks.
Part A
How do you reverse a string in PHP without using any built in functions?
Answer
To reverse a string without built-in functions, calculate the string length by iterating until the character is null, then iterate backwards from the last index to the first, appending each character to a new string.
What are the storage engines used by MySQL?
Answer
Common MySQL storage engines include InnoDB (supports transactions and row-level locking), MyISAM (fast for read-heavy operations), and Memory (stores data in RAM for high-speed access).
What is Document Object Model?
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How does one link external style sheet in a XHTML document?
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Write the purpose of cookies.
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What is session tracking? Explain.
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List down the advantages of Java beans.
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How JSP page is compiled?
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What is the scope of variables in java script?
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How the keyword 'new' is used to create objects in java script?
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Part B
Discuss about various functions used in PHP with examples.
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Write PHP code to create a login page for a web application.
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Discuss about various types of PHP interpreters.
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Write a program in PHP to find out length of the string "This is my first program".
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Explain about XML core tags and flow control tags.
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Show how an XML schema can be created.
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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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What is CGI? List the CGI environmental variables.
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Explain the life cycle of a Servlet with a neat sketch.
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Discuss the process of deploying a web application.
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How to handle http request and responses? Explain.
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Write about the components of JSP and explain.
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How to connect database connection through JSP? Illustrate with example.
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Write in brief about JSP tag extensions and libraries.
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How to create and make use of beans in JSP pages? Demonstrate with example.
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Explain about objects, methods and events in java scripts.
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Write a java script to change text color of HTML elements.
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What is the functioning of the java script keyword 'this' and 'dot' operator? Explain.
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Write a java script to validate a form consisting of a hall ticket number as username and mobile number as password. Also navigate to another web page after validation.
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