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시험 이름: Java Enterprise Edition 5 Web Component Developer Certified Professional Exam
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업데이트: 2014-07-01
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시험 이름: Performance Tuning
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1Z0-858 덤프무료샘플다운로드하기: http://www.itexamdump.com/1Z0-858.html
NO.1 Click the Exhibit button.
The resource requested by the RequestDispatcher is available and implemented by the
DestinationServlet.
What is the result?
A. An exception is thrown at runtime by SourceServlet.
B. An exception is thrown at runtime by DestinationServlet.
C. Only "hello from dest" appears in the response output stream.
D. Both "hello from source" and "hello from dest" appear in the response output stream.
Answer: A
Oracle 1Z0-858인증덤프 1Z0-858후기 1Z0-858자격증
NO.2 A developer wants to make a name attribute available to all servlets associated with a particular user,
across multiple requests from that user, from the same browser instance.
Which two provide this capability from within a tag handler? (Choose two.)
A. pageContext.setAttribute("name", theValue);
B. pageContext.setAttribute("name", getSession());
C. pageContext.getRequest().setAttribute("name", theValue);
D. pageContext.getSession().setAttribute("name", theValue);
E. pageContext.setAttribute("name", theValue,
PageContext.PAGE_SCOPE);
F. pageContext.setAttribute("name", theValue,
PageContext.SESSION_SCOPE);
Answer: D,F
Oracle최신버전덤프 1Z0-858 1Z0-858시험정보
NO.3 Given the JSP code:
10. <html>
11. <body>
12. <jsp:useBean id='customer' class='com.example.Customer' />
13. Hello, ${customer.title} ${customer.lastName}, welcome
14. to Squeaky Beans, Inc.
15. </body>
16. </html>
Which three types of JSP code are used.? (Choose three.)
A. Java code
B. template text
C. scripting code
D. standard action
E. expression language
Answer: B,D,E
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NO.4 You want to create a filter for your web application and your filter will implement
javax.servlet.Filter.
Which two statements are true? (Choose two.)
A. Your filter class must implement an init method and a destroy method.
B. Your filter class must also implement javax.servlet.FilterChain.
C. When your filter chains to the next filter, it should pass the same arguments it received in its doFilter
method.
D. The method that your filter invokes on the object it received that implements
javax.servlet.FilterChain can invoke either another filter or a servlet.
E. Your filter class must implement a doFilter method that takes, among other things, an
HTTPServletRequest object and an HTTPServletResponse object.
Answer: A,D
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NO.5 <sl:item name="Milk" />
NO.6 One of the use cases in your web application uses many session-scoped attributes. At the end of the
use case, you want to clear out this set of attributes from the session object. Assume that this static
variable holds this set of attribute names:
201. private static final Set<String> USE_CASE_ATTRS;
202. static {
203. USE_CASE_ATTRS.add("customerOID");
204. USE_CASE_ATTRS.add("custMgrBean");
205. USE_CASE_ATTRS.add("orderOID");
206. USE_CASE_ATTRS.add("orderMgrBean");
207. }
Which code snippet deletes these attributes from the session object?
A. session.removeAll(USE_CASE_ATTRS);
B. for ( String attr : USE_CASE_ATTRS ) {
session.remove(attr);}
C. for ( String attr : USE_CASE_ATTRS ) {
session.removeAttribute(attr);}
D. for ( String attr : USE_CASE_ATTRS ) {
session.deleteAttribute(attr);}
E. session.deleteAllAttributes(USE_CASE_ATTRS);
Answer: C
Oracle국제공인자격증 1Z0-858 1Z0-858 PDF 1Z0-858 dump 1Z0-858덤프다운
NO.7 </sl:shoppingList>
The tag handler for sl:shoppingList is ShoppingListTag and the tag handler for sl:item is
ItemSimpleTag.
ShoppingListTag extends BodyTagSupport and ItemSimpleTag extends SimpleTagSupport.
Which is true?
A. ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling getParent() and casting
the result to ShoppingListTag.
B. ShoppingListTag can find the child instances of ItemSimpleTag by calling super.getChildren() and
casting each to an ItemSimpleTag.
C. It is impossible for ItemSimpleTag and ShoppingListTag to find each other in a tag hierarchy because
one is a Simple tag and the other is a Classic tag.
D. ShoppingListTag can find the child instances of ItemSimpleTag by calling getChildren() on the
PageContext and casting each to an ItemSimpleTag.
E. ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling
findAncestorWithClass() on the PageContext and casting the result to ShoppingListTag.
Answer: A
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13.Servlet A receives a request that it forwards to servlet B within another web application in the same
web container. Servlet A needs to share data with servlet B and that data must not be visible to other
servlets in A's web application. In which object can the data that A shares with B be stored?
A. HttpSession
B. ServletConfig
C. ServletContext
D. HttpServletRequest
E. HttpServletResponse
Answer: D
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14.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:
42. <context-param>
43. <param-name>prefsDbURL</param-name>
44. <param-value>
45. jdbc:pointbase:server://dbhost:4747/prefsDB
46. </param-value>
47. </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 ServletContextListener {
public void contextCreated(ServletContext ctx) {
String prefsURL = ctx.getInitParameter("prefsDbURL");
PreferencesFactory myFactory = makeFactory(prefsURL);
ctx.setAttribute("myPrefsFactory", myFactory);}
// more code here}
C. 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}
D. 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}
Answer: C
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15.A developer wants a web application to be notified when the application is about to be shut down.
Which two actions are necessary to accomplish this goal? (Choose two.)
A. include a listener directive in a JSP page
B. configure a listener in the TLD file using the <listener> element
C. include a <servlet-destroy> element in the web application deployment descriptor
D. configure a listener in the application deployment descriptor, using the <listener> element
E. include a class implementing ServletContextListener as part of the web application deployment
F. include a class implementing ContextDestroyedListener as part of the web application
deployment
G. include a class implementing HttpSessionAttributeListener as part of the web application
deployment
Answer: D,E
Oracle후기 1Z0-858최신버전덤프 1Z0-858 IT국제자격증 1Z0-858응시료 1Z0-858기출문제
NO.8 To take advantage of the capabilities of modern browsers that use web standards, such as XHTML and
CSS, your web application is being converted from simple JSP pages to JSP Document format. However,
one of your JSPs, /scripts/screenFunctions.jsp, generates a JavaScript file. This file is included in several
web forms to create screen-specific validation functions and are included in these pages with the
following statement:
10. <head>
11. <script src='/scripts/screenFunctions.jsp'
12. language='javascript'
13. type='application/javascript'> </script>
14. </head>
15. <!-- body of the web form -->
Which JSP code snippet declares that this JSP Document is a JavaScript file?
A. <%@ page contentType='application/javascript' %>
B. <jsp:page contentType='application/javascript' />
C. <jsp:document contentType='application/javascript' />
D. <jsp:directive.page contentType='application/javascript' />
E. No declaration is needed because the web form XHTML page already declares the MIME type of the
/scripts/screenFunctions.jsp file in the <script> tag.
Answer: D
Oracle시험자료 1Z0-858 1Z0-858 pdf 1Z0-858기출문제 1Z0-858기출문제
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