SCWCD(310-083)單項選擇題每日一練(2019.01.13)

單項選擇題
Which defines the welcome files in a web application deployment descriptor？（）
A.
B.
C.
D.
單項選擇題
You are building a web application with a scheduling component. On the JSP， you need to show the currentdate， the date of the previous week， and the date of the next week. To help you present this information，you have created the following EL functions in the ’d’ namespace： name： curDate； signature： java.util.DatecurrentDate（） name： addWeek； signature： java.util.Date addWeek（java.util.Date， int） name： dateString；signature：java.util.String getDateString（java.util.Date）Which EL code snippet will generate the string for the previousweek？
A.${d：dateString（addWeek（curDate（）， -1））}
B.${d：dateString[addWeek[curDate[]， -1]]}
C.${d：dateString[d：addWeek[d：curDate[]， -1]]}
D.${d：dateString（d：addWeek（d：curDate（）， -1））}
單項選擇題
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
單項選擇題
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.
B.
C.
D.
單項選擇題
Given：5.public class MyTagHandler extends TagSupport {6.public int doStartTag（） throws JspException {7.try {8.// insert code here9.} catch（Exception ex） { /* handle exception */ }10.return super.doStartTag（）；11.}...42. }Which code snippet， inserted at line 8，causes the value foo to be output？（）
A.JspWriter w = pageContext.getOut（）；
B.print（"foo"）；
C.JspWriter w = pageContext.getWriter（）；
D.JspWriter w = new JspWriter(pageContext.getWriter()); . w.print("foo");