Java认证考试

Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation.This information must NOT be acce

题目

Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation.This information must NOT be accessible to any other servlet,JSP or session in the webapp. Which two techniques can you use to accomplish this goal?()

  • A、Add attributes to the session object.
  • B、Add attributes on the request object.
  • C、Add parameters to the request object.
  • D、Use the pageContext object to add request attributes.
  • E、Add parameters to the JSP’s URL when generating the request dispatcher.
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相似问题和答案

第1题:

Servlet A receives a request that it forwards to servlet B within another web application in the same webcontainer. Servlet A needs to share data with servlet B and that data must not be visible to other servlets inA’s web application. In which object can the data that A shares with B be stored?()

  • A、HttpSession
  • B、ServletConfig
  • C、ServletContext
  • D、HttpServletRequest
  • E、HttpServletResponse

正确答案:D

第2题:

Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated by the servlet to the JSP;furthermore, that JSP uses a custom tag and must also process this information. This information mustNOT be accessible to any other servlet, JSP or session in the webapp. How can you accomplish this goal?()

  • A、Store the data in a public instance variable in the servlet.
  • B、Add an attribute to the request object before using the request dispatcher.
  • C、Add an attribute to the context object before using the request dispatcher.
  • D、This CANNOT be done as the tag handler has no means to extract this data.

正确答案:B

第3题:

Your Windows Communication Foundation (WCF) client application uses HTTP to communicate with the service.You need to enable message logging and include all security information such as tokens and nonces in logged messages.What should you do?()

A.

B.

C.

D.


参考答案:D

第4题:

You have built your own light-weight templating mechanism. Your servlets, which handle each request,dispatch the request to one of a small set of template JSP pages. Each template JSP controls the layout ofthe view by inserting the header, body, and footer elements into specific locations within the template page.The URLs for these three elements are stored in request scoped variables called, headerURL, bodyURL,and footerURL, respectively. These attribute names are never used for other purposes. Which JSP codesnippet should be used in the template JSP to insert the JSP content for the body of the page?()

  • A、<jsp:insert page=’${bodyURL}’ />
  • B、<jsp:insert file=’${bodyURL}’ />
  • C、<jsp:include page=’${bodyURL}’ />
  • D、<jsp:include file=’${bodyURL}’ />
  • E、<jsp:insert page=’<%= bodyURL %>’ />

正确答案:C

第5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?()

  • A、Dispatcher view=context.getDispatcher(viewURL);view.forward Request(request, response);
  • B、Dispatcher view=request.getDispatcher(viewURL);view.forward Request(request, response);
  • C、RequestDispatcher view. =context.getRequestDispatcher(viewURL);view.forward(request,response);
  • D、RequestDispatcher view=request.getRequestDispatcher(viewURL);view.forward(request, response);

正确答案:D

第6题:

A developer has created a web application that includes a servlet for each use case in the application.These servlets have become rather difficult to maintain because the request processing methods havebecome very large. There is also common processing code in many servlets because these use cases arevery similar. Which two design patterns can be used together to refactor and simplify this web application?()

  • A、Proxy
  • B、View Helper
  • C、Front Controller
  • D、Session Facade
  • E、Business Delegate
  • F、Model-View-Controller

正确答案:C,F

第7题:

You work as a Web Developer at Certkiller.com. You are in the process of creating a Webapplication using Microsoft ASP.NET 3.5.  You host the Web application in Microsoft Internet Information Services (IIS) 6.0. You browse theapplication and receive the following error message:  Server Application Unavailable  The web application you are attempting to access on this web server is currently unavailable.Please hit the "Refresh" button in your web browser to retry your request.  You view the Application event log and discover the following message:  It is not possible to run two different versions of ASP.NET in the same IIS process. Please use theIIS Administration Tool to reconfigure your server to run the application in a separate process.  To ensure productivity you need to solve this problem as quick as possible.  What should you do?()

  • A、You should change the IIS isolation mode.
  • B、You should assign the application to another application pool.
  • C、You should configure all applications that are part of your application's application pool in orderto use the same version of ASP.NET.
  • D、You should run the Aspnet_regiis.exe Tool.
  • E、You should restart the application pool that hosts the application.

正确答案:B,C

第8题:

Your network consists of a single Active Directory domain. You have 10 Web servers run Windows Server2003 Service Pack 2 (SP2).You need to archive all of the application event logs for all the Web servers. The archived logs must contain all information from the original logs.What should you do? ()

A. Connect to each Web Server by using Event Viewer. Save the Application logs as the CSV file type.

B. Connect to each Web Server by using Event Viewer. Save the Application logs as the Event Log file type.

C. On each Web server, open the Security Configuration and Analysis snap-in, analyze the computer, and then export the settings.

D. Run Security Configuration Wizard for each Web Server. Save the data to an .inf file.


参考答案:B

第9题:

Which is the true choice about the web container request processing model()?

  • A、 The init method on a filter is called the first time a servlet mapped to that filter is invoked
  • B、 A filter defined for a servlet must always forward control to the next resource in the filter chain.
  • C、 Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file
  • D、 If the init method on a filter throws an UnavailableException, then the container will make no further attempt to execute it

正确答案:C

第10题:

A developer has created a special servlet that is responsible for generating XML content that is sent to adata warehousing subsystem. This subsystem uses HTTP to request these large data files, which are compressed by the servlet to save internal network bandwidth. The developer has received a request frommanagement to create several more of these data warehousing servlets. The developer is about to copyand paste the compression code into each new servlet. Which design pattern can consolidate thiscompression code to be used by all of the data warehousing servlets?()

  • A、Facade
  • B、View Helper
  • C、Transfer Object
  • D、Intercepting Filter
  • E、Composite Facade

正确答案:D

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