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Xml - Interview Questions and Answers for 'Tcs' - 2 question(s) found - Order By Newest | |||||||||||
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Ans. A DOM (Document Object Model) parser creates a tree structure in memory from an input document whereas A SAX (Simple API for XML) parser does not create any internal structure. A SAX parser serves the client application always only with pieces of the document at any given time whereas A DOM parser always serves the client application with the entire document no matter how much is actually needed by the client. A SAX parser, however, is much more space efficient in case of a big input document whereas DOM parser is rich in functionality. Use a DOM Parser if you need to refer to different document areas before giving back the information. Use SAX is you just need unrelated nuclear information from different areas. Xerces, Crimson are SAX Parsers whereas XercesDOM, SunDOM, OracleDOM are DOM parsers. | |||||||||||
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Like Discuss Correct / Improve  java   xml   parsers   sax   dom parser   difference   architecture   technical lead   technical architect  markup language   sax vs dom Asked in 14 Companies   frequent | |||||||||||
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Frequently asked. Among first few questions in the J2EE segment of interview. | |||||||||||
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Ans. Deployment Descriptor which is usually web.xml is used to specify the classes, resources and configuration of the application and how the web server uses them to serve web requests.This file is usually added to WEB-INF folder and contains following * Servlet entries and url mapping * Plugins * Some info regarding authentication / filters * Landing Page * Event Handlers | |||||||||||
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Like Discuss Correct / Improve  web.xml   servlets  deployment descriptor Asked in 15 Companies basic   frequent | |||||||||||
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Which of the following file is called deployment descriptor ? a. application.xml b. project.xml c. web.xml d. build.xml | |||||||||||
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What is the difference between filter and filter-mappings xml tag within deployment descriptor ? | |||||||||||
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