多选题Given that www.example.com/SCWCDtestApp is a validly deployed Java EE web application and that all ofthe JSP files specified in the requests below exist in the locations specified. Which two requests，issuedfrom a browser，will return an HTTP 404 error？（

第1题：

第2题：

第3题：

第4题：

A web application contains a tag file called beta.tag in /WEB-INF/tags/alpha. A JSP page called sort.jspexists in the web application and contains only this JSP code： 1.<%@ taglib prefix="x" 2.tagdir="/WEB-INF/tags/alpha" %> 3. The sort.jsp page is requested. Which two are true？（）

• A、Tag files can only be accessed using a tagdir attribute.
• B、The sort.jsp page translates successfully and invokes the tag defined by beta.tag.
• C、The sort.jsp page produces a translation error because a taglib directive must always have a uriattribute.
• D、Tag files can only be placed in /WEB-INF/tags， and NOT in any subdirectories of /WEB- INF/tags.
• E、The tagdir attribute in line 2 can be replaced by a uri attribute if a TLD referring to beta.tag is createdand added to the web application.

第5题：

You need to create a servlet filter that stores all request headers to a database for all requests to the webapplication’s home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of therequest headers？（）

• A、String[] getHeaderNames（）
• B、String[] getRequestHeaders（）
• C、java.util.Iterator getHeaderNames（）
• D、java.util.Iterator getRequestHeaders（）
• E、java.util.Enumeration getHeaderNames（）

第6题：

第7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8题：

第9题：

You are designing a Windows Azure application.  The application includes two web roles and three instances of a worker role.  The web roles will send requests to the worker role through one or more Windows Azure Queues. You have the following requirements：   - Ensure that each request is processed exactly one time.   - Minimize the idle time of each worker role instance. - Maximize the reliability of request processing.   You need to recommend a queue design for sending requests to the worker role.  What should you recommend？（）

• A、 Create a single queue.  Send requests on the single queue.
• B、 Create a queue for each web role.  Send requests on all queues at the same time.
• C、 Create a queue for each workerrole instance.  Send requests on each worker queue in a round robin.
• D、 Create a queue for each combination of web roles and worker role instances.  Send requests to all worker role instances based on the sending web role.

第10题：

Given this fragment from a Java EE deployment descriptor： 341. 342.java.lang.Throwable  343./mainError.jsp 344. 345. 346.java.lang.ClassCastException  347./castError.jsp 348. If the web application associated with the fragment above throws a ClassCastException.Which statement is true？（）

• A、The deployment descriptor is invalid.
• B、The container invokes mainError.jsp.
• C、The container invokes castError.jsp.
• D、Neither mainError.jsp nor castError.jsp is invoked.