Sunday, 1 February 2015

J2EE Part7 Interview Questions and Answers

61. What is declaration
The very first thing in an XML document, which declares it as XML. The minimal declaration is . The declaration is part of the document prolog.

62. What is declarative security
Mechanisms used in an application that are expressed in a declarative syntax in a deployment descriptor.

63. What is delegation
An act whereby one principal authorizes another principal to use its identity or privileges with some restrictions.

64. What is deployer
A person who installs J2EE modules and applications into an operational environment.

65. What is deployment
The process whereby software is installed into an operational environment.

66. What is deployment descriptor
An XML file provided with each module and J2EE application that describes how they should be deployed. The deployment descriptor directs a deployment tool to deploy a module or application with specific container options and describes specific configuration requirements that a deployer must resolve.

67. What is destination
A JMS administered object that encapsulates the identity of a JMS queue or topic. See point-to-point messaging system, publish/subscribe messaging system.

68. What is digest authentication 
An authentication mechanism in which a Web application authenticates itself to a Web server by sending the server a message digest along with its HTTP request message. The digest is computed by employing a one-way hash algorithm to a concatenation of the HTTP request message and the client's password. The digest is typically much smaller than the HTTP request and doesn't contain the password.

69. What is distributed application
An application made up of distinct components running in separate runtime environments, usually on different platforms connected via a network. Typical distributed
applications are two-tier (client-server), three-tier (client-middleware-server), and multitier (client-multiple middleware-multiple servers).

70. What is document
In general, an XML structure in which one or more elements contains text intermixed with subelements.
More Questions & Answers :-
Part1  Part2  Part3  Part4  Part5  Part6  Part7

No comments:

Post a Comment