最も有効な 1Z1-899 試験参考書

Given the portion of a valid Java EE web application's directory structure:

You want to know whether File1.html, File2.html, and/or File3.html is protected from direct access by your web client's browsers. What statement is true?

• A. Only File1.html is directly accessible.
• B. Only File2.html is directly accessible.
• C. Only File1.html and File3.html are directly accessible.
• D. All three files are directly accessible.
• E. Only File1.html and File2.html are directly accessible.
• F. Only File2.html and File3.html are directly accessible.
• G. Only File3.html is directly accessible.

A web component accesses a local EJB session bean with a component interface of com.example.Account with a home interface of com.example.AccountHome and a JNDI reference of ejb/Account.
Which makes the local EJB component accessible to the web components in the web application deployment descriptor?

• A. Option C
• B. Option B
• C. Option D
• D. Option A

Which of following annotations can be used in a servlet class?
(i) @javax.annotation.Resource
(ii) @javax.annotation.PreDestroy
(iii) @javax.annotation.security.RunAs
(iv) @javax.annotation.security.RolesAllowed
(v) @javax.servlet.annotation.WebServlet

• A. (i), (ii), (iii), (iv) and (v)
• B. (i), (ii), (iv) and (v)
• C. (i), (ii), (iii) and (v)
• D. (v) only
• E. (i) and (v)

Which two are valid for transport for the enum TransportGuarantee in
javax.servlet.annotation.ServletSecurity? (Choose two)

• A. CONFIDENTIAL
• B. NONE
• C. INTEGRAL
• D. ENCRYPTED
• E. SECURE

As a convenience feature, your web pages include an Ajax request every five minutes to a special servlet that monitors the age of the user's session. The client-side JavaScript that handles the Ajax callback displays a message on the screen as the session ages. The Ajax call does NOT pass any cookies, but it passes the session ID in a request parameter called sessionID. In addition, assume that your webapp keeps a hasmap of session objects by the ID. Here is a partial implementation of this servlet:
10. public class SessionAgeServlet extends HttpServlet {
11. public void service(HttpServletRequest request, HttpServletResponse) throws IOException {
12. String sessionID = request.getParameter("sessionID");
13. HttpSession session = getSession(sessionID);
14. long age = // your code here
15. response.getWriter().print(age);
16. }
... // more code here
47. }
Which code snippet on line 14, will determine the age of the session?

• A. session.getLastAccessed().getTime() - session.getCreationTime().getTime();
• B. session.getLastAccessedTime().getTime() - session.getCreationTime().getTime();
• C. session.getLastAccessed() - session.getCreationTime();
• D. session.getLastAccessedTime() - session.getCreationTime();
• E. session.getMaxInactiveInterval();
• F. session.getMaxInactiveInterval() - session.getCreationTime();