You are creating an error page that provides a user-friendly screen whenever a server exception occurs.You want to hide the stack trace， but you do want to provide the exception’s error message to the user sothe user can provide it to the customer service agent at your company.
Which EL code snippet inserts thiserror message into the error page？（）
A.Message： <b>${exception.message}</b>
B.Message： <b>${exception.errorMessage}</b>
C.Message： <b>${request.exception.message}</b>
D.Message： <b>${pageContext.exception.message}</b>
E.Message： <b>${request.exception.errorMessage}</b>
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Given：
11.<% com.example.Advisor advisor = new com.example.Advisor（）； %>
12.<% request.setAttribute（"foo"， advisor）； %>
Assuming there are no other "foo" attributes in the web application，which three are valid EL expressions forretrieving the advice property of advisor？（）
A.${foo.advice}
B.${request.foo.advice}
C.${requestScope.foo.advice}
D.${requestScope[foo[advice]]}
E.${requestScope["foo"]["advice"]}
Given：
6.<% int[] nums = {42， 420， 4200}；
7.request.setAttribute（"foo"， nums）； %>
Which two successfully translate and result in a value of true？（）
A.${true or false}
B.${requestScope[foo][0] > 500}
C.${requestScope[’foo’][1] = 420}
D.${（requestScope[’foo’][0] lt 50） && （3 gt 2）}
You are building a Front Controller using a JSP page and you need to determine if the user’s session hasNOT been created yet and perform some special processing for this case.
Which scriptlet code snippet willperform this test？（）
A.<% if （ request.getSession（false） == null ） {// special processing} %>
B.<% if （ request.getHttpSession（false） == null ） {// special processing} %>
C.<% if （ requestObject.getSession（false） == null ） { // special processing} %>
D.<% if （ requestObject.getHttpSession（false） == null ） { // special processing} %>
You need to create a JSP that generates some JavaScript code to populate an array of strings used on theclient-side.
Which JSP code snippet will create this array？（）
A.MY_ARRAY = new Array（）；<% for （ int i = 0； i < serverArray.length； i++ ） { MY_ARRAY[<%= i %>] = ’<%= serverArray[i] %>’；} %>
B.MY_ARRAY = new Array（）；. <% for （ int i = 0； i < serverArray.length； i++ ） { . MY_ARRAY[${i}] = ’${serverArray[i]}’；. } %>
C.MY_ARRAY = new Array（）；. <% for （ int i = 0； i < serverArray.length； i++ ） { %> . MY_ARRAY[<%= i %>] = ’<%= serverArray[i] %>’；. <% } %>
D.MY_ARRAY = new Array（）；<% for （ int i = 0； i < serverArray.length； i++ ） { %> . MY_ARRAY[${i}] = ’${serverArray[i]}’；. <% } %>
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？（）
A.<jsp-property-group>. <url-pattern>*.jsp</url-pattern>. <permit-scripting>false</permit-scripting>. </jsp-property-group>
B.<jsp-config>. <url-pattern>*.jsp</url-pattern><permit-scripting>false</permit-scripting>. </jsp-config>
C.<jsp-config>. <url-pattern>*.jsp</url-pattern>. <scripting-invalid>true</scripting-invalid>. </jsp-config>
D.<jsp-property-group>. <url-pattern>*.jsp</url-pattern>. <scripting-invalid>true</scripting-invalid>. </jsp-property-group>
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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？（）
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？（）
Which element of a web application deployment descriptor element is required？（）
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？（）
You are building your own layout mechanism by including dynamic content for the page’s header and footersections. The footer is always static， but the header generates the <title> tag that requires the page name tobe specified dynamically when the header is imported.Which JSP code snippet performs the import of theheader content？（）
Your company has a corporate policy that prohibits storing a customer’s credit card number in anycorporate database. However， users have complained that they do NOT want to re- enter their credit cardnumber for each transaction. Your management has decided to use client-side cookies to record the user’scredit card number for 120 days. Furthermore， they also want to protect this information during transit fromthe web browser to the web container； so the cookie must only be transmitted over HTTPS.Which codesnippet creates the "creditCard" cookie and adds it to the out going response to be stored on the user’s webbrowser？（）
Which two are valid and equivalent？（）
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.
Click the ’Select and Place’ button.Place the events in the order they occur.