J2EE Interview questions and answers

131. What is Java API for XML Registries (JAXR)

An API for accessing various kinds of XML registries.

132. What is Java API for XML-based RPC (JAX-RPC)

An API for building Web services and clients that use
remote procedure calls and XML

133. What is Java IDL

A technology that provides CORBA interoperability and
connectivity capabilities for the J2EE platform. These
capabilities enable J2EE applications to invoke
operations on remote network services using the Object
Management Group IDL and IIOP.




134. What is Java Message Service (JMS)

An API for invoking operations on enterprise messaging
systems.

135. What is Java Naming and Directory Interface
(JNDI)

An API that provides naming and directory
functionality.

136. What is Java Secure Socket Extension (JSSE)

A set of packages that enable secure Internet
communications.




137. What is Java Transaction API (JTA)

An API that allows applications and J2EE servers to
access transactions.

138. What is Java Transaction Service (JTS)

Specifies the implementation of a transaction manager
that supports JTA and implements the Java mapping of
the Object Management Group Object Transaction Service
1.1 specification at the level below the API.




139. What is JavaBeans component

A Java class that can be manipulated by tools and
composed into applications. A JavaBeans component must
adhere to certain property and event interface
conventions.

140. What is JavaMail

An API for sending and receiving email.