單項(xiàng)選擇題

Given this fragment in a servlet：
23.if（req.isUserInRole（"Admin"）） {
24.// do stuff
25.}
And the following fragment from the related Java EE deployment descriptor：
812.<security-role-ref>
813.<role-name>Admin</role-name>
814.<role-link>Administrator</role-link>
815.</security-role-ref>
900.<security-role>
901.<role-name>Admin</role-name>
902.<role-name>Administrator</role-name>
903.</security-role>
What is the result？（）

A.Line 24 can never be reached.
B.The deployment descriptor is NOT valid.
C.If line 24 executes， the user’s role will be Admin.
D.If line 24 executes， the user’s role will be Administrator.
E.If line 24 executes the user’s role will NOT be predictable.

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多項(xiàng)選擇題

If you want to use the Java EE platform’s built-in type of authentication that uses a custom HTML page for authentication.
Which two statements are true？（）

A.Your deployment descriptor will need to contain this tag： CUSTOM.
B.The related custom HTML login page must be named loginPage.html.
C.When you use this type of authentication， SSL is turned on automatically.
D.You must have a tag in your deployment descriptor that allows you to point to both a login HTML pageand an HTML page for handling any login errors.
E.In the HTML related to authentication for this application， you must use predefined variable names fort he variables that store the user and password values.

多項(xiàng)選擇題

Given：
3.class MyServlet extends HttpServlet {
4.public void doPut（HttpServletRequest req， HttpServletResponse resp） throws ServletException，IOException {
5.// servlet code here ...
26.}
27.}
If the DD contains a single security constraint associated with MyServlet and its only <http method> tagsand <auth-constraint> tags are：<http-method>GET</http-method><http-method>PUT</http-method>
<auth-constraint>Admin</auth-constraint>
Which four requests would be allowed by the container？（）

A.A user whose role is Admin can perform a PUT.
B.A user whose role is Admin can perform a GET.
C.A user whose role is Admin can perform a POST.
D.A user whose role is Member can perform a PUT.
E.A user whose role is Member can perform a POST.
F.A user whose role is Member can perform a GET.

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If you want to use the Java EE platform’s built-in type of authentication that uses a custom HTML page for authentication. Which two statements are true？（）

If you want to use the Java EE platform’s built-in type of authentication that uses a custom HTML page for authentication.
Which two statements are true？（）