多选题Which two are true regarding a web application class loader？（）AA web application may override the web container’s implementation classes.BA web application running in a J2EE product may override classes in the javax.* namespace.CA web application class

第1题：

Which path， relative to a web application’s root， identifies the web application’s deployment descriptor？（）

• A、 /conf/web.xml
• B、 /WEB-INF/web.xml
• C、 /conf/server.xml
• D、 /META-INF/web.xml
• E、 /WEB-INF/rules.xml
• F、 /META-INF/server. Xml

第2题：

In which three directories， relative to a web application’s root， may a tag library descriptor file reside when deployed directly into a web application？（）

• A、 /WEB-INF
• B、 /META-INF
• C、 /WEB-INF/tlds
• D、 /META-INF/tlds
• E、 WEB-INF/resources
• F、 /META-INF/resources

第3题：

Which the 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.*  namespace
• 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
• E、 Resources in the WAR class directory or in any of the JAR files within the library directory  cannot be accessed using the J2SE semantics of getResource

第4题：

Which the two about WAR files are true？（）

• A、 WAR files must be located in the web application library directory.
• B、 WAR files must contain the web application deployment descriptor.
• C、 WAR files must be created by using archive tools to designed specifically for that purpose. 
• D、 The web container must serve the content of any META-INF directory located in a WAR file.
• E、 The web container must allow access to resources in JARs in the web application library directory

第5题：

Which the statement is true about web container session management（）？

• A、 Access to session-scoped attributes is guaranteed to be thread-safe by the web container.
• B、 To activate URL rewriting， the developer must use the HttpServletResponse.setURLRewriting method.
• C、 If the web application uses HTTPS， then the web container may use the data on the HTTPS request stream to identify the client.
• D、 The JSESSIONID cookie is stored permanently on the client so that a user may return to the web application and the web container will rejoin that session.

第6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.

第7题：

In which two web application directories can dependent classes and libraries be located？ （）

• A、 /WEB-INF/lib as a JAR file
• B、 /META-INF/lib as a JAR file
• C、 /classes as compiled class files
• D、 /WEB-INF/lib as compiled class files
• E、 /WEB-INF/classes as compiled class files
• F、 /META-INF/classes as compiled class files

第8题：

A developer wants a web application to be notified when the application is about to be shut down. Which two actions are necessary to accomplish this goal？（）

• A、Include a listener directive in a JSP page
• B、configure a listener in the TLD file using the  element
• C、Include a  element in the web application deployment descriptor
• D、configure a listener in the application deployment descriptor， using the  element
• E、Include a class implementing ServletContextListener as part of the web application deploymen

第9题：

Your web application requires the ability to load and remove web files dynamically to the web container’s filesystem. Which two HTTP methods are used to perform these actions？（）

• A、PUT
• B、POST
• C、SEND
• D、DELETE
• E、REMOVE

第10题：

In which two locations can library dependencies be defined for a web application？ （）

• A、 the web application deployment descriptor
• B、 the /META-INF/dependencies.xml file
• C、 the /META-INF/MANIFEST.MF manifest file
• D、 the /META-INF/MANIFEST.MF manifest of a JAR in the web application classpath