单项选择题

A.Message： ${exception.message}B.Message： ${e……

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： ${exception.message}
B.Message： ${exception.errorMessage}
C.Message： ${request.exception.message}
D.Message： ${pageContext.exception.message}
E.Message： ${request.exception.errorMessage}

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多项选择题Click the Exhibit button. 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"]}

多项选择题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）}

单项选择题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} %>

单项选择题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]}’；. <% } %>

单项选择题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？（）

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>

A.Message： ${exception.message}< b>B.Message： ${e……