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Json - Interview Questions and Answers for 'Markup language' - 11 question(s) found - Order By Rating

 Q1. Can comments be added in JSON ?JSON
Ans. No, It should all be data.

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   Like         Discuss         Correct / Improve     Markup languages


 Q2. What are protocol buffers ?Markup Language
Ans. Protocol buffers are language-neutral, platform-neutral, mechanism for serializing structured data. It is developed by google.

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  Q3. What is JSON ?Json
Ans. JSON is "JavaScript Object Notation", primarily used for client-server or server-server communication. Its a much lighter and readable alternative to XML. JSON is language independent and is easily parse-able in all programming languages.

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   Like         Discuss         Correct / Improve     json   markup language   client server communication     Asked in 26 Companies      basic        frequent

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 Q4. Which function is used to convert a JSON text into an object ?Json
Ans. eval

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 Q5. Which data types are supported by JSON ?Json
Ans. Number
String
Boolean
Array
Object
null

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 Q6. What are the benefits of JSON over XML ?Json
Ans. Lighter and faster than XML as on-the-wire data format

Object Representation - Information is presented in object notations and hence better understandable.

Easy to parse and conversion to objects for information consumption.

Support multiple data types - JSON supports string, number, array, boolean whereas XML data are all string.

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   Like         Discuss         Correct / Improve     json   markup language     Asked in 1 Companies      intermediate        frequent

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 Q7. What is XML ?Xml
Ans. XML or eXtensible Markup Language is a markup languages for describing data and its metadata.

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   Like         Discuss         Correct / Improve     xml   markup language      basic        frequent


  Q8. Difference between SAX and DOM Parser ?Xml
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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 Q9. What is DTD ?Xml
Ans. DTD or Document Type Definition is a standard agreed upon way of communication between two parties. Your application can use a standard DTD to verify that data that you receive
from the outside world is valid and can be parsed by your parser.

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   Like         Discuss         Correct / Improve     xml   markup language   dtd   document type definition   architecture


 Q10. What is XSD ?Xml
Ans. XSD or Xml Schema Definition is an extension of DTD. XSD is more powerful and extensible than DTD

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   Like         Discuss         Correct / Improve     java   xml   markup language   xsd   dtd   architecture


 Q11. What is JAXB ?Xml
Ans. Stands for Java API for XML Binding. This standard defines a mechanism for writing out Java objects as XML and for creating Java objects from XML structures.

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   Like         Discuss         Correct / Improve     java   xml   markup language   java api for xml binding   jaxb   abbreviation   technologies     Asked in 2 Companies



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