@Bhanu
I also did not read the full specs for JSP, EL and JSTL but I referred to them when needed.
The model parts of the requirements should be understandable for you if you take a look at the whole
Java EE platform. There wasn't any complicated questions about
JDBC and JPA - just to know what they are, how they are related and how you can use them should be all you need to know.
Asynchronous web applications - the topics you posted are more related with the overview of the asynchronous processing and reading some materials about AJAX and differences between synchronous and asynchronous processing should be enought (Servlets 3.0 specification also gives you some information about that).
And the security - these topics are just as the model one - you just need to read what a JAAS is (I didn't have any question regarding this topic) and understand how you can use it (also - the Java EE platform tutorial should be enough).
Just remember - that's only my opinion and I can't give you a 100% that this will be enought - it just was enought in my case :-)
@Paul
All links to the Java EE 6 specification related topics can be found here:
http://www.oracle.com/technetwork/java/javaee/tech/index.html
HTH!
Cheers!