EJB Interview Questions and Answers
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Socket and ServerSocket.
ServerSocket is used for normal two-way socket communication. Socket class allows us to read and write through the sockets. getInputStream() and getOutputStream() are the two methods available in Socket class.
The main technologies in J2EE are: Enterprise JavaBeansTM (EJBsTM), JavaServer PagesTM (JSPsTM), Java Servlets, the Java Naming and Directory InterfaceTM (JNDITM), the Java Transaction API (JTA), CORBA, and the JDBCTM data access API.
EJB is a specification for J2EE server, not a product; Java beans may be a graphical component in IDE.
The process by which the contents in the memory of one physical m/c are replicated in all the m/c in the cluster is called in-memory replication.
The process of propagating the changes in the properties of a server group during runtime to all the associated clones is called Ripple Effect.
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