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 licensepackage. When a client pays for a specific service， you provide them with a license extension key that theyinsert into the
Which code snippet will accomplish this goal？（）
A.
B.
C.
D.
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You are designing an n-tier Java EE application. You have already decided that some of your JSPs willneed to get data from a Customer entity bean. You are trying to decide whether to use a Customer stubobject or a Transfer Object.
Which two statements are true？（）
A.The stub will increase network traffic.
B.The Transfer Object will decrease data staleness.
C.The stub will increase the logic necessary in the JSPs.
D.In both cases， the JSPs can use EL expressions to get data.
E.Only the Transfer Object will need to use a Business Delegate.
A developer is designing the presentation tier for a web application which requires a centralized requesthandling to complete common processing required by each request.
Which design pattern provides asolution to this problem？（）
A.Remote Proxy
B.Front Controller
C.Service Activator
D.Intercepting Filter
E.Business Delegate
A.JSP to Transfer Object
B.Service Locator to JNDI
C.Controller to request object
D.Transfer Object to Entity Bean
E.Controller to Business Delegate
A developer is designing a web application that makes many fine-grained remote data requests for eachclient request. During testing， the developer discovers that the volume of remote requests significantlydegrades performance of the application.
Which design pattern provides a solution for this problem？（）
A.Flyweight
B.Transfer Object
C.Service Locator
D.Dispatcher View
E.Business Delegate
F.Model-View-Controller
最新試題
Click the 'Select and Place' button.Place the events in the order they occur.
Which is true about the web container request processing model？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Click the ’Select and Place’ button.Place the events in the order they occur.
Which element of a web application deployment descriptor element is required？（）
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？（）
You are building a dating web site. The client’s date of birth is collected along with lots of other information.The Person class has a derived method， getAge（）：int， which returns the person’s age calculated from thedate of birth and today’s date. In one of your JSPs you need to print a special message to clients within theage group of 25 through 35.Which two EL code snippets will return true for this condition？ （）
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？（）
Which is a benefit of precompiling a JSP page？（）
Click the ’Select and Place’ button.Place the events in the order they occur.