What are the two proper locations of deployment descriptors files inside of archives deployed to
WebLogic?
A.
the WEB-INF subdirectory for a WAR file
B.
the META-INF subdirectory for an EAR file, or EJB-JAR
C.
the DD-INF subdirectory
D.
the root of archive
E.
any searchable location
Explanation:
A:
* The WEB-INF directory contains the deployment descriptors for the Web application (web.xml
and weblogic.xml) and two subdirectories for storing compiled Java classes and library JAR files.
* Web Application – WEB-INF/web.xml ( WEB-INF/weblogic.xml )
The WEB-INF directory is a vital component of your web application. Web application wont run
without it.It contains a heirarcy in which you’ll find the necessary configuration information for your
web application, and all the class files for your servlets and classes that are called up by your
JSPs.
WEB-INF folder contains all the class files for your servlets and classes that are called up by your
JSPs
B:
Enterprise Application – META-INF/application.xml (META-INF/weblogic-application.xml) and
META-INF/ejb-jar.xml ( META-INF/weblogic-ejb-jar.xml )
Generally comprises of EJBs. Bussiness Tier of an application and EJB basically handels the
Bussiness logic of application (distributed objects)
META-INF/application.xml containes Mappings and security roles etc.whereas META-INF/ejbjar.xml containes ejb classes , session beans mapping etc.,
The META-INF directory is related to .jar files, It contains the manifest file which has list of jars.A context-root setting in application.xml takes precedence over context-root setting in
weblogic.xml (The context root of a web application determines which URLs weblogic will delegate
to your web application.
Note:
* Deployment descriptors are xml documents that describe runtime behaviour for the deployment
unit. The XML file contains information such as the context root of the web application and the
mapping of the portable names of an application’s resources to the application Server’s resources