Hai,
I have looked up the specs after seeing your question. From the options, it is clear that A,B,C & E qualify for enabling sessions. However the question is about MAINTAINING, not enabling.. So, D is the correct solution.
Here is the spec:
SRV.15.1.8 HttpSessionActivationListener
public interface HttpSessionActivationListener extends
java.util.EventListener
All Superinterfaces: java.util.EventListener
Objects that are bound to a session may listen to container events notifying them
that sessions will be passivated and that session will be activated. A container that
migrates session between VMs or persists sessions is required to notify all
attributes bound to sessions implementing HttpSessionActivationListener.
Since: 2.3
HTH.
Hi guys,
Problem:
Which of the following is a technique used for maintaining sessions?
Options Select 1 correct option.
A. HttpSession objects
B. URL rewriting
C. Cookies
D. HttpSessionActivationListener
E. Hidden form fields
The answer it says is "D", I cannot understand, I think B,C E should be fine, in any case, how come "D" is right?
Thanks a lot for solving my puzzle.
Hai