Final exam of Head First book, question 21:
You have created a valid directory structure and a valid WAR file for your Java EE web application. Given that:
-ValidApp.war is the name of of the WAR file
-WARdir represents the directory that must exist in every WAR file.
-APPdir represents the directory that must exist in every web application.
Which is true?
A. The actual name of WARdir is NOT predictable.
B. The name of your application is NOT predictable.
C. In this directory structure, APPdir will exist inside WARdir.
D. In this directory structure, the application's deployment descriptor will reside in the same directory as WARdir.
E. Placing your application in a WAR file providers the option for the container to perform additional runtime checks not otherwise guranteed.
Regarding to option A, the explanation says
Option A: the directory must be called META-INF
I think the WARdir can either be META-INF or WEB-INF.
If WARdir is WEB-INF, then option D is correct.