複選題
36 When using the @WebListener annotation, the class on which the annotation is applied to must also implement at least one of the following interfaces (Choose two):
(A) RequestListener
(B) AttributeListener
(C) ServletContextListener
(D) HttpSessionListener
(E) SessionAttributeListener (F) AsyncListener

複選題32 Given: Which three EL expressions, inserted at line 16, are valid and evaluate to "d"? (Choose three) (A) ${map.c} (B) ${map.[c]} (C) ${map.["c"]} (D) ${map.map.b} (E) ${map.[map.b]} F. ${map. (map.b)}

33 A web application wants to expose to its clients an operation that results in a transaction being performed across several systems, for example the transfer of money from one bank account to another Which HTTP method should it use? (A) GET (B) HEAD (C) OPT IONS (D) POST

34 You have a simple wpb application that has a single Front Controller servlet that dispatches to JSPs generate a variety of views. Several of these views require further database processing to retrieve the necessary order object using the orderID request parameter. To do this additional processing, you pass the request first to a servlet that is mapped to the URL pattern /WEB - INF / retrieveOrder.do. in the deployment descriptor. This servlet takes two request parameters, the orderID and the jspURL. It handles the database calls to retrieve and build the complex order objects and then it dispatches to the jspURL. Which code snippet in the Front Controller servlet dispatches the request to the order retrieval servlet? IT Certification Guaranteed, The Easy Way! (A) reques.setAttribute ("orderID", orderID);request.setAttribute("jspURL", jspURL);RequestDispatcher view= context.getRequestDispathcher ("/WEB - INF / retrieveOrder.do");view.forward(request, response) (B) reques.setParameter ("orderID", orderID);request.setParameter("jspURL", jspURL);Dispatcher view= request.getDispatcher ("/WEB - INF / retrieveOrder.do");View.forwardRequest (request, response); (C) String T= "/WEB - INF / retrieveOrder.do?orderID = %d&jspURl = %s";String url = String.format (T, orderID, jspURL);RequestDispatcher view = context.getRequestDispatcher (url);View.forward (request, response); (D) String T= "/WEB - INF / retrieveOrder.do?orderID = %d&jspURl = %s";String url = String.format (T, orderID, jspURL);Dispatcher view= context.getDispatcher (url);View.forwardRequest (request, response);

複選題35 Given:  11. ＜%  12. request.setAttribute ("vals", new String[] {"1", "2", "3", "4"});  13. request.setAttribute ("index", "2");  14. %＞ 15. ＜% - - insert code here - - %＞ Which three EL expressions, inserted at line 15, are valid and evaluate to "3"? (Choose three) (A) ${vals.2} (B) ${vals ["2"] } (C) ${vals.index} (D) ${vals[index] } (E) ${vals} [index] (F) ${vals. (vals.index) } (G) ${vals [vals[index-1]] }

37 The jquery_1_3_2.jar file contains the JQuery Ajax framework in its META-INF/ resources directory. Where should the jar file be placed inside the web application to ensure the resources it contains are accessible by clients? (A) WEB-INF/classes (B) WEB-INF/jar (C) WEB-INF/lib (D) WEB INF/resources

38 Which java code snippet checks whether the user is of the role "MANAGER" for a given HttpServRequest, httpServletRequest? (A) httpServletRequest.isUserInRole("MANAGER"); (B) httpServletRequest.isCallerInRole("MANAGER"); (C) httpServletRequest.isPrincipalInRole("MANAGER"); (D) httpServletRequest.isAuthnticatedUserInRole("MANAGER");

39 You need to create a servlet filter that stores all request headers to a database for all requests to the web application's home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of the request headers? (A) String[] getHeaderNames () (B) String[] getRequestHeaders () (C) java.util.Iterator getHeaderNames () (D) java.util.Iterator getRequestHeaders () (E) java.util.Enumeration getHeaderNames () F. java.util.Enumeration getRequestHeaders ()

40 Which annotation specifies the metadata as a javax.servlet.http.HttpSessionListener? (A) @Listener (B) @WebListener (C) @WebSessionListener (D) @HttpSessionListener

複選題41 Given an HttpServletRequest request:  22. String id = request.getParameter("jsessionid"); 23. // insert code here  24. String name = (String) session.getAttribute("name") Which three can be placed at line 23 to retrieve an existing HttpSession object? (Choose three) (A) HttpSession session = request.getSession(); (B) HttpSession session = request.getSession(id); (C) HttpSession session = request.getSession(true); (D) HttpSession session = request.getSession(false); (E) HttpSession session = request.getSession("jsessionid");

42 You have built a web application that you license to small businesses. The webapp uses a context parameter, called licenseExtension, which enables certain advanced features based on your client's license package. When a client pays for a specific service, you provide them with a license extension key that they insert into the ＜context-param＞ of the deployment descriptor. Not every client will have this context parameter so you need to create a context listener to set up a default value in the licenseExtension parameter. Which code snippet will accomplish this goal? (A) You cannot do this because context parameters CANNOT be altered programmatically. (B) String ext = context.getParameter('licenseExtension');if ( ext == null ) { context.setParameter('licenseExtension' DEFAULT);} (C) String ext = context.getAttribute('licenseExtension');if ( ext == null ) { context.setAttribute('licenseExtension' DEFAULT);} (D) String ext = context.getInitParameter('licenseExtension')if ( ext == null ) { context.resetInitParameter('licenseExtension' DEFAULT);} (E) String ext = context.getInitParameter('licenseExtension')if ( ext == null ) { context.setInitParameter('licenseExtension' DEFAULT);}