Q. What is the difference between an Abstract class and Interface? A. Terms are different ... nothing more Q. What is JFC ? A. Jilebi, Fanta & Coffee Q. Explain 2 tier and 3 -tier Architecture ? A. Two wheelers like scooters will have 2 tyres and autorickshaws will have 3 tyres. Q. I want to store more than 10 objects in a remote server? Which methodology will follow? A. Send it through courier. Q. Can I modify an object in CORBA? A. As you wish , I do not have any objections. Q. How to communicate 2 threads each other ? A. Sorry, Non living things can't communicate. Q. Explain RMI Architecture? A. I am a computer professional not an architect student. Q. What is the use of Servlets ? A. In hotels, they can replace servers. Q. What is the dif ference between Process and Threads? A. Threads are small ropes. Make a rope from threads is an example for process. Q. What is JAR file ? A. File that can be kept inside a jar. Q. What is JINI? A. A ghost which was Aladdin's friend. Q. How will you call an Applet from a __Java Script? A. I will give invitation. Q. What is bean ? Where it can be used ? A. A kind of vegetable. In kitchens for cooking they can be used. Q. Write down how will you create a binary Tree ? A. When we sow a binary seed, a binary tree will grow.