最新の310-083問題集で試験を準備する

SUN 310-083 試験概要:

SUN 310-083 試験シラバストピック:

SUN Sun Certified Web Component Developer for J2EE 5 認定 310-083 試験問題：

1. Your web site has many user-customizable features, for example font and color preferences on web pages. Your IT department has already built a subsystem for user preferences using the Java SE platform's lang.util.prefs package APIs, and you have been ordered to reuse this subsystem in your web application. You need to create an event listener that constructs the preferences factory and stores it in the application scope for later use. Furthermore, this factory requires that the URL to a database must be declared in the deployment descriptor like this:
4 2. <context-param>
4 3. <param-name>prefsDbURL</param-name>
4 4. <param-value>
4 5. jdbc:pointbase:server://dbhost:4747/prefsDB
4 6. </param-value>
4 7. </context-param>
Which partial listener class will accomplish this goal?

A) public class PrefsFactoryInitializer implements ContextListener {
public void contextInitialized(ServletContextEvent e) {
ServletContext ctx = e.getContext();
String prefsURL = ctx.getParameter("prefsDbURL");
PreferencesFactory myFactory = makeFactory(prefsURL);
ctx.putAttribute("myPrefsFactory", myFactory);
}
// more code here
}
B) public class PrefsFactoryInitializer implements ContextListener {
public void contextCreated(ServletContext ctx) {
String prefsURL = ctx.getParameter("prefsDbURL");
PreferencesFactory myFactory = makeFactory(prefsURL);
ctx.putAttribute("myPrefsFactory", myFactory);
}
// more code here
}
C) public class PrefsFactoryInitializer implements ServletContextListener { public void contextCreated(ServletContext ctx) {
String prefsURL = ctx.getInitParameter("prefsDbURL");
PreferencesFactory myFactory = makeFactory(prefsURL);
ctx.setAttribute("myPrefsFactory", myFactory);
}
// more code here
}
D) public class PrefsFactoryInitializer implements ServletContextListener { public void contextInitialized(ServletContextEvent e) {
ServletContext ctx = e.getServletContext();
String prefsURL = ctx.getInitParameter("prefsDbURL");
PreferencesFactory myFactory = makeFactory(prefsURL);
ctx.setAttribute("myPrefsFactory", myFactory);
}
// more code here
}

2. Which two are true concerning the objects available to developers creating tag files?
(Choose two.)

A) The servlet context is available through the implicit servletContext object.
B) The output stream is available through the implicit outStream object.
C) The session object must be declared explicitly.
D) The request and response objects are available implicitly.
E) The JspContext for the tag file is available through the implicit jspContext object.

3. You need to create a JavaBean object that is used only within the current JSP page. It must NOT be accessible to any other page including those that this page might import.
Which JSP standard action can accomplish this goal?

A) <jsp:useBean id='pageBean' class='com.example.MyBean' />
B) <jsp:makeBean name='pageBean' class='com.example.MyBean' />
C) <jsp:useBean name='pageBean' class='com.example.MyBean' />
D) <jsp:useBean id='pageBean' type='com.example.MyBean' />
E) <jsp:makeBean id='pageBean' class='com.example.MyBean' />
F) <jsp:makeBean id='pageBean' type='com.example.MyBean' />

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

5. All of your JSPs need to have a link that permits users to email the web master. This web application is licensed to many small businesses, each of which have a different email address for the web master. You have decided to use a context parameter that you specify in the deployment descriptor, like this:
4 2. <context-param>
4 3. <param-name>webmasterEmail</param-name>
4 4. <param-value>[email protected]</param-value>
4 5. </context-param>
Which JSP code snippet creates this email link?

A) <a href='mailto:${contextInitParam.webmasterEmail}'>contact us</a>
B) <a href='mailto:${initParam.webmasterEmail}'>contact us</a>
C) <a href='mailto:${applicationScope.webmasterEmail}'>contact us</a>
D) <a href='mailto:${contextParam.webmasterEmail}'>contact us</a>

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