單項(xiàng)選擇題Which security mechanism uses the concept of a realm?()

A.Authorization
B.Data integrity
C.Confidentiality
D.Authentication


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1.單項(xiàng)選擇題Which basic authentication type is optional for a J2EE 1.4 compliant web container?()

A.HTTP Basic Authentication
B.Form Based Authentication
C.HTTP Digest Authentication
D.HTTPS Client Authentication

3.多項(xiàng)選擇題

Click the Exhibit button.

Given the JSP code:
1.<%
2.pageContext.setAttribute( "product",
3.new com.example.Product( "Pizza", 0.99 ) );
4.%>
5.<%-- insert code here --%>
Which two, inserted at line 5, output the name of the product in the response?()

A.<%= product.getName()%>
B.<jsp:useBean id="product" class="com.example.Product" /> <%= product.getName()%>
C.<jsp:useBean id="com.example.Product" scope="page"> <%= product.getName()%></jspuseBean>
D.<jsp:useBean id="product" type="com.example.Product" scope="page" /><%= product.getName()%>

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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?()

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Which two are valid and equivalent?()

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Given tutorial.jsp:2.EL Tutorial3.Example 14.5.Dear ${my:nickname(user)}6.Which, when added to the web application deployment descriptor,ensures that line 5 is included verbatimin the JSP output?()

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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?()

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All of your JSPs need to have a link that permits users to email the web master. This web application islicensed to many small businesses, each of which have a different email address for the web master. Youhave decided to use a context parameter that you specify in the deployment descriptor, like this:42.<context-param>43.<param-name>webmasterEmail</param-name>44.<param-value>master@example.com</param-value>45.</context-param>Which JSP code snippet creates this email link?()

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