单项选择题

You are building JSP pages that have a set of menus that are visible based on a user’s security role. Thesemenus are hand-crafted by your web design team； for example， the SalesManager role has a menu in thefile /WEB-INF/html/sales-mgr-menu.html.
Which JSP code snippet should be used to make this menuvisible to the user？（）

A.<% if （ request.isUserInRole（"SalesManager"）） { %> <%@ include file=’/WEB-INF/html/sales-mgr-menu.html’ %> <% } %>
B.<jsp：if test=’request.isUserInRole（"SalesManager"）’> <%@ include file=’/WEB-INF/html/sales-mgr-menu.html’ %> </jsp：if>
C.<% if （ request.isUserInRole（"SalesManager"）） { %> . <jsp：include file=’/WEB-INF/html/sales-mgr-menu.html’ /> . <% } %>
D.<jsp：if test=’request.isUserInRole（"SalesManager"）’> <jsp：include file=’/WEB-INF/html/sales-mgr-menu.html’ /> </jsp：if>

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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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Which three are described in the standard web application deployment descriptor？（）

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

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Within the web application deployment descriptor， which defines a valid JNDI environment entry？（）

A.
B.
C.
D.