about implicit objects

[air lulu]

question:
Which of the following implicit objects can you use to store attributes that need
to be accessed from all the sessions of a web application? (Select two)
a application
b session
c request
d page
e pageContext

what is the answer?
i think the answer is a,d,e. but the question told that just two.
whick answer i chosse is wrong?

[kapil munjal]

a is correct as it is accessible from everywhere.

d is correct as these attributes will be available to all the sessions.

e is incorrect as there is no such scope.

[air lulu]

the question is asking "implicit objects ",not scope.
pageContext is implicit objects.

[kapil munjal]

Yes, I was wrong on that...
then the answer would be a and e.

see this link

http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/JSPIntro7.html

Well, if this time I am wrong then please tell me how we can use page implicit object to access the attributes.

[air lulu]

how pageContext store attributes that need
to be "accessed from all the sessions" of a web application?

[shiva viswanathan]

I think pagerContext is right because using pageContext you
can store attributes in the application scope indirectly
pageContext.setAttribute("userName","admin",PageContext.APPLICATION_SCOPE)

hence even pageContext is a valid answer

[Sumeet Raheja]

Yes that Right ..Correct Answer is application and pageContext are only implicit object where one can store attribute , which will be availabe from any part of Application

[Edmund Yong]

If the web application is distributed on two JVMs, then there will be two different servlet context objects, one on each JVM. Attributes that are set on one servlet context in one JVM may not be propagated to the servlet context in the other JVM. So how can answer (a) be correct?