J2EE Interview questions and answers

51. What is context attribute 

An object bound into the context associated with a
servlet. 

52. What is context root 

A name that gets mapped to the document root of a Web
application. 

53. What is conversational state 

The field values of a session bean plus the transitive
closure of the objects reachable from the bean's
fields. The transitive closure of a bean is defined in
terms of the serialization protocol for the Java
programming language, that is, the fields that would
be stored by serializing the bean instance. 


54. What is CORBA 

Common Object Request Broker Architecture. A
language-independent distributed object model
specified by the OMG. 

55. What is create method 

A method defined in the home interface and invoked by
a client to create an enterprise bean. 

56. What is credentials 

The information describing the security attributes of
a principal. 


57. What is CSS 

Cascading style sheet. A stylesheet used with HTML and
XML documents to add a style to all elements marked
with a particular tag, for the direction of browsers
or other presentation mechanisms. 

58. What is CTS 

Compatibility test suite. A suite of compatibility
tests for verifying that a J2EE product complies with
the J2EE platform specification. 


59. What is data 

The contents of an element in an XML stream, generally
used when the element does not contain any
subelements. When it does, the term content is
generally used. When the only text in an XML structure
is contained in simple elements and when elements that
have subelements have little or no data mixed in, then
that structure is often thought of as XML data, as
opposed to an XML document. 

60. What is DDP 

Document-driven programming. The use of XML to define
applications.