JEE interview questions

• What are filters
• Why do we require filters
• How do you configure filters in a webapp
• Are the filters executed in any order 
• What is the difference between Servlets and JSP
• What is the disadvantage of using a JSP
• What are the different kinds of EJB's
• What is the difference between stateful and stateless session beans
• What needs to be taken care when using stateful session beans
• How can the statefull session beans be destroyed
• What is the complexity in using Stateful session beans
• Who creates the stubs and skeletons for an EJB, when are they created
• EJB Bean does not implement the remote interface. Why
• How can you make sure the Beam implements all the methods of the Remote Interface at compilte time
• What is an EJBObject, Who creates it and what is its significance
• Is the EJB Bean  Serializable