Enthuware

Answer B is marked as correct.

In asynchronous processing of a request, one cannot use servlet containers feature to generate the response.

I cannot understand the explanation that is given. Could you please rephrase in a clearer way?

The option itself is very vague, which we have noted in the explanation. The rest of the explanation is quoted from the specification. You might want to go through section 2.3.3.3 of Servlet 3.0 specification and see if that makes more sense.

HTH,
Paul.
BTW, the reason we have this question is because a couple of candidates reported getting this option in the real exam.