Question: What are the contents of web module?

Question: Differentiate between .ear,  .jar and .war files.  

Question: What is the difference between Session Bean and Entity Bean?    

Question: Why J2EE is suitable for the development distributed multi-tiered enterprise applications?    

Question: Why do understand by a container?  

Question: What are the services provided by a container?
Question: What are types of J2EE clients?