Patni-Placement Paper-19 Nov 2005

Experienced

 

This is what was asked in Patni Interview. It was Java based interview.
 
 1.Difference between protected, public and Private .
 2. Difference between java and c. Why java is Machine Independent ?
 3. can java class file run on UNIX platform.
 4 What is package. use of package.
 5 Limitation on definition of class in package.
 6 Try catch. throws, throwable.---> Why do we use throws ? Why do we use throwable ? What is the use of Finally when there is a catch already ? final, finally, finalize ? difference
 7. what is relational database.?
 8. Types of drivers in JDBC. What is JDBC ODBC driver ?what is use of ODBC .Why is MS access a relational database ?
 9 Why is Try catch necessary in JDBC. cant we do without that ?
 10. can we define class in servlet /JSp ? why ? ---> Important
 11.life cycle of servlet ?
 12 . Any java Editors u have used ?
 13 . difference between get and Post ?
 14. limitation of get ? how much capacity of data can u send through that ?
 why does that limitation exist ? is it browser dependent ? what are the types of browsers that are there ?
 15. What is servlet chaining.?
 16.What is JNDI ? use of JNDI ?
 17. when you are using JNDI in EJB ? will JNDI be necessary when you are defining client and server on the same side ? if yes you ---->why you dont define JNDI while executing java file ? how JNDI works ? how to look for server side components through JNDI ? what protocol is used in JNDI ? what do you look with JNDI ->class, method or object ?
 
 other than Java:
 18 what is SDLC
 19 what are testing methodologies that we use ?