What do you understand by Java Message Service (JMS)? Can you describe the phases of the servlet lifecycle? What are deployment descriptors used for? How can we take a heap dump of a Java process? What is the purpose of heap dumps and how do you analyze a heap dump? How is a webserver different from an application server? How is 32-bit JVM different from 64-bit JVM? What happens if the database connected to the Java application via connection pool suddenly goes down? What do you understand by Connectors? Can you describe the Connector Architecture? What are the design goals of J2EE architecture? J2EE Interview Questions for Experienced.What are the differences between JVM vs JIT vs JDK vs JRE? What factors should a J2EE application possess for operating in a global economy? What is the architecture model of Struts? What are the J2EE applets? Why can we use it? What is an EJB? How can you use it in J2EE? Why do we have JDBC and JNDI in J2EE? How are they different from each other? How is multi-tier client-server architectural model advantageous? How are PATH and CLASSPATH different from each other in terms of J2EE? What are the various components of J2EE application architecture? What are some of the technologies provided by the J2EE platform?
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