XML Interview Question and Answers

16. What is X Path?
 
  • X Path is formal query language defined by the XML Path Language 2.0 specification.
  • An X Path expression is created and passed to an engine that evaluates it.
  • The expression is parsed and executed against a data store.
  • The returned value may be a set of nodes or a scalar value.
 
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17. When the X Path Document is used?
 
  • X Path Document is recommended only when the applications need to query an XML Document.
  • It is faster than Xml Document.
  • It can be created using Xml Reader to load all or part of a document into it.
 
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18. What kinds of documents are generated by the XSLT Processor?
  The XSLT Processor generates the variety of documents such as, XML, HTML, and ASPX for a webpage and a PDF document.
 
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19. What are the restrictions in the Xml Serialization?
 
    There are some restrictions when applying XML serialization to a class. They are:
  • Only the public property or field can be serialized.
  • The class must contain a public default constructor.
 
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20. What are the two ways to represent the XML?
 
    The XML is represented in two basic ways
  • External document containing embedded data.
  • In–memory tree structure known as Document Object Model (DOM)
 
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