SCWCD(310-083) 题目列表
多选题A session-scoped attribute is stored by a servlet, and then that servlet forwards to a JSP page. Which threejsp:useBean attributes must be used to access this attribute in the JSP page?()AidBnameCbeanDtypeEscope
单选题Your IT department is building a lightweight Front Controller servlet that invokes an application logic objectwith the interface: public interface ApplicationController {public String invoke(HttpServletRequest request)} The return value of this method indicates a symbolic name of the next view. From this name, the FrontController servlet looks up the JSP URL in a configuration table. This URL might be an absolute path or apath relative to the current request. Next, the Front Controller servlet must send the request to this JSP togenerate the view. Assume that the servlet variable request is assigned the current HttpServletRequestobject and the variable context is assigned the webapp’s ServletContext. Which code snippet of the FrontController servlet accomplishes this goal?()ADispatcher view=context.getDispatcher(viewURL);view.forward Request(request, response);BDispatcher view=request.getDispatcher(viewURL);view.forward Request(request, response);CRequestDispatcher view. =context.getRequestDispatcher(viewURL);view.forward(request,response);DRequestDispatcher view=request.getRequestDispatcher(viewURL);view.forward(request, response);
单选题Which ensures that a JSP response is of type "text/plain"?()A%@ page mimeType=text/plain %B%@ page contentType=text/plain %C%@ page pageEncoding=text/plain %D%@ page contentEncoding=text/plain %E% response.setEncoding(text/plain); %
多选题Given: 11. 15. Which three EL expressions, inserted at line 15,are valid and evaluate to "3"?()A${vals.2}B${vals[2]}C${vals.index}D${vals[index]}E${vals}[index]F${vals[vals[index-1]]}
多选题Given: 3.class MyServlet extends HttpServlet { 4.public void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException,IOException { 5.// servlet code here ... 26.} 27.} If the DD contains a single security constraint associated with MyServlet and its only tagsand tags are:GETPUT Admin Which four requests would be allowed by the container?()AA user whose role is Admin can perform a PUT.BA user whose role is Admin can perform a GET.CA user whose role is Admin can perform a POST.DA user whose role is Member can perform a PUT.EA user whose role is Member can perform a POST.FA user whose role is Member can perform a GET.
多选题A web application allows the HTML title banner to be set using a servlet context initialization parametercalled titleStr. Which two properly set the title in this scenario?()Atitle${titleStr}/titleBtitle${initParam.titleStr}/titleCtitle${params[0].titleStr}/titleDtitle${paramValues.titleStr}/titleEtitle${initParam[’titleStr’]}/title
单选题Given a Filter class definition with this method: 21.public void doFilter(ServletRequest request, 22.ServletResponse response, 23.FilterChain chain) 24.throws ServletException, IOException { 25.// insert code here26. } Which should you insert at line 25 to properly invoke the next filter in the chain,or the target servlet if thereare no more filters?()Achain.forward(request, response);Bchain.doFilter(request, response);Crequest.forward(request, response);Drequest.doFilter(request, response);
单选题The Squeaky Bean company has decided to port their web application to a new J2EE 1.4 container. Whilereviewing the application, a developer realizes that in multiple places within the current application, nearlyduplicate code exists that finds enterprise beans. Which pattern should be used to eliminate this duplicatecode?()ATransfer ObjectBFront ControllerCService LocatorDIntercepting FilterEBusiness DelegateFModel-View-Controller
单选题The JSP developer wants a comment to be visible in the final output to the browser. Which comment styleneeds to be used in a JSP page?()A!-- this is a comment --B% // this is a comment %C%-- this is a comment --%D% /** this is a comment **/ %
单选题You have a new IT manager that has mandated that all JSPs must be refactored to include no scritpletcode. The IT manager has asked you to enforce this. Which deployment descriptor element will satisfy thisconstraint?()Ajsp-property-group. url-pattern*.jsp/url-pattern. permit-scriptingfalse/permit-scripting. /jsp-property-groupBjsp-config. url-pattern*.jsp/url-patternpermit-scriptingfalse/permit-scripting. /jsp-configCjsp-config. url-pattern*.jsp/url-pattern. scripting-invalidtrue/scripting-invalid. /jsp-configDjsp-property-group. url-pattern*.jsp/url-pattern. scripting-invalidtrue/scripting-invalid. /jsp-property-group
单选题Which element of a web application deployment descriptor element is required?()Arealm-nameBauth-methodCsecurity-roleDtransport-guaranteeEweb-resource-collection
单选题You have created a web application that you license to real estate brokers. The webapp is highly customizable including the email address of the broker, which is placed on the footer of each page. This isconfigured as a context parameter in the deployment descriptor: 10. 11.footerEmail 12.joe@estates-r-us.biz 13. Which EL code snippet will insert this context parameter into the footer?()Aa href=’mailto:${footerEmail}’Contact me/aBa href=’mailto:${initParam@footerEmail}’Contact me/aCa href=’mailto:${initParam.footerEmail}’Contact me/aDa href=’mailto:${contextParam@footerEmail}’Contact me/aEa href=’mailto:${contextParam.footerEmail}’Contact me/a
单选题A web browser need NOT always perform a complete request for a particular page that it suspects mightNOT have changed. The HTTP specification provides a mechanism for the browser to retrieve only a partialresponse from the web server; this response includes information, such as the Last-Modified date but NOTthe body of the page. Which HTTP method will the browser use to retrieve such a partial response?()AGETBASKCSENDDHEADETRACE
单选题A developer is designing a web application that must verify for each request: The originating request is froma trusted network. The client has a valid session.The client has been authenticated. Which design pattern provides a solution in this situation?()ATransfer ObjectBSession FacadeCIntercepting FilterDTemplate MethodEModel-View-Controller
单选题All of your JSPs need to have a link that permits users to email the web master. This web application islicensed to many small businesses, each of which have a different email address for the web master. Youhave decided to use a context parameter that you specify in the deployment descriptor, like this: 42. 43.webmasterEmail 44.master@example.com 45. Which JSP code snippet creates this email link?()Aa href=’mailto:${contextParam.webmasterEmail}’contact us/aBa href=’mailto:${applicationScope.webmasterEmail}’contact us/aCa href=’mailto:${contextInitParam.webmasterEmail}’contact us/aDa href=’mailto:${initParam.webmasterEmail}’contact us/a