多项选择题

Which two are true regarding a web application class loader？（）

A.A web application may override the web container’s implementation classes.
B.A web application running in a J2EE product may override classes in the javax.* namespace.
C.A web application class loader may NOT override any classes in the java.* and javax.* namespaces.
D.Resources in the WAR class directory or in any of the JAR files within the library directory may be accessed using the J2SE semantics of getResource.

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多项选择题Whichthreearedescribedinthestandardwebapplicationdeploymentdescriptor？（）

A.session configuration
B.MIME type mappings
C.context root for the application
D.servlet instance pool configuration
E.web container default port bindings
F.Servlet Context initialization parameters

单项选择题Withinthewebapplicationdeploymentdescriptor，whichdefinesavalidJNDIenvironmententry？（）

A.
B.
C.
D.

单项选择题Whichelementofthewebapplicationdeploymentdescriptordefinestheservletclassassociatedwithaservletinstance？（）

A.<class><br/>
B.<webapp><br/>
C.<servlet><br/>
D.<codebase><br/>
E.<servlet-class>

单项选择题Given： 11.public class MyServlet extends HttpServlet { 12.public void service（HttpServletRequest request， 13.HttpServletResponse response） 14.throws ServletException， IOException { 15. insert code here 16.} 17.} and this element in the web application’s deployment descriptor： <error-page> <error-code>302< error-code> <location> html error.html< location> < error-page> Which，inserted at line 15，causes the container to redirect control to the error.html resource？（）

A.response.setError（302）；
B.response.sendError（302）；
C.response.setStatus（302）；
D.response.sendRedirect（302）；
E.response.sendErrorRedirect（302）；

多项选择题You want to create a valid directory structure for your Java EE web application， and your application usestag files and a JAR file. Which three must be located directly in your WEB-INF directory（NOT in asubdirectory of WEB-INF）？（）

A.The JAR file
B.A directory called lib
C.A directory called tags
D.A directory called TLDs
E.A directory called classes
F.A directory called META-INF