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Oracle 1Z0-858 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Session Management	10%	- Session tracking mechanisms - Session attributes and scope - Session lifecycle
Topic 2: JSP Technology Model	13%	- Implicit objects - Elements and syntax - JSP lifecycle
Topic 3: Servlet Technology Model	15%	- Servlet configuration and initialization - Servlet lifecycle - Request and response handling
Topic 4: Expression Language (EL) and Standard Actions	10%	- Accessing JavaBeans and collections - Standard JSP actions - EL syntax and operators
Topic 5: Web Application Structure and Deployment	10%	- Annotations for configuration - Deployment descriptor (web.xml) - WAR file structure
Topic 6: JSTL and Custom Tag Development	12%	- JSTL core and formatting tags - Tag files and descriptors - Tag handler lifecycle
Topic 7: Web Container Model	10%	- Filters and interceptors - Event listeners - Container services
Topic 8: Design Patterns and Architecture	8%	- Intercepting Filter, Front Controller - MVC pattern - Service Locator, Business Delegate
Topic 9: Web Application Security	12%	- Data protection and transport security - Authentication methods - Authorization and roles

Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:

1. You have been contracted to create a web site for a free dating service. One feature is the ability for one client to send a message to another client, which is displayed in the latter client's private page. Your contract explicitly states that security is a high priority. Therefore, you need to prevent cross-site hacking in which one user inserts JavaScript code that is then rendered and invoked when another user views that content. Which two JSTL code snippets will prevent cross-site hacking in the scenario above? (Choose two.)

A) <c:out>${message}</c:out>
B) <c:out value='${message}' />
C) <c:out value='${message}' escapeXml='true' />
D) <c:out eliminateXml='true'>${message}</c:out>
E) <c:out value='${message}' eliminateXml='true' />

2. In which two locations can library dependencies be defined for a web application? (Choose two.)

A) the /META-INF/MANIFEST.MF manifest file
B) the /META-INF/MANIFEST.MF manifest of a JAR in the web application classpath
C) the web application deployment descriptor
D) the /META-INF/dependencies.xml file

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

4. You have created a servlet that generates weather maps. The data for these maps is
calculated by a remote host. The IP address of this host is usually stable, but occasionally does have to change as the corporate network grows and changes. This IP address used to be hard coded, but after the fifth change to the IP address in two years, you have decided that this value should be declared in the deployment descriptor so you do NOT have the recompile the web application every time the IP address changes. Which deployment descriptor snippet accomplishes this goal?

A) <servlet>

<param-name>WeatherServlet.hostIP</param-name>
<param-value>127.0.4.20</param-value>
</servlet>
B) <init-param>
<param-name>WeatherServlet.hostIP</param-name>
<param-value>127.0.4.20</param-value>
</init-param>
C) <serlvet-param>
<name>WeatherServlet.hostIP</name>
<value>127.0.4.20</value>
</servlet-param>
D) <serlvet-param>
<param-name>WeatherServlet.hostIP</param-name>
<param-value>127.0.4.20</param-value>
</servlet-param>
E) <init-param>
<name>WeatherServlet.hostIP</name>
<value>127.0.4.20</value>
</init-param>