Sunday, 1 February 2015

Latest J2EE Interview Questions and Answers (Part4)

31. What is business logic
The code that implements the functionality of an application. In the Enterprise JavaBeans architecture, this logic is implemented by the methods of an enterprise bean.

32.What is business method
A method of an enterprise bean that implements the business logic or rules of an application.

33. What is callback methods
Component methods called by the container to notify the component of important events in its life cycle.

34. What is caller
Same as caller principal.

35. What is caller principal
The principal that identifies the invoker of the enterprise bean method.

36. What is cascade delete
A deletion that triggers another deletion. A cascade delete can be specified for an entity bean that has container-managed persistence.

37. What is CDATA
A predefined XML tag for character data that means "don't interpret these characters," as opposed to parsed character data (PCDATA), in which the normal
rules of XML syntax apply. CDATA sections are typically used to show examples of XML syntax.

38. What is certificate authority
A trusted organization that issues public key certificates and provides identification to the bearer.

39. What is client-certificate authentication
An authentication mechanism that uses HTTP over SSL, in which the server and, optionally, the client authenticate each other with a public key certificate
that conforms to a standard that is defined by X.509 Public Key Infrastructure.

40. What is comment
In an XML document, text that is ignored unless the parser is specifically told to recognize it.
More Questions & Answers :-
Part1  Part2  Part3  Part4  Part5  Part6  Part7

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