Big telecom company: Java/ J2ee interview 12/ Dec/ 2009

# The following lists the interview questions from a big telecom company on december 2009
> JAVA -Senior level position
  • What is the OOPS concepts? And list them
  • What is polymorphism
  • what is the functionalities added into java 1.5 (eg. generic e.t.c)
  • What are the collection interfaces you know? and list them
  • How generic applies to collection interfaces?
  • Design pattern in depth.
  • Garbage collection mechanism
  • Exception handling
> Struts 1.2
  • Process flow of struts
  • What are the files getting created in simple sign-in application in struts?
  • difference b/w struts 2.0
  • diff b/w inculde redirect and include directive
  • How can write method in JSP
  • what are the implicit objects
> Servlet
  • Servlet life cycle.
  • how can servlet communicate with the view layer
  • how may servlet instance will create for 10 requests.
> Hibernate
  • What is hibernate
  • How is the entire architecture for hibernate
  • What is the difference between head and trunc?