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Code d'Examen: 1Z1-051
Nom d'Examen: Oracle (Oracle Database: SQL Fundamentals I)
Questions et réponses: 254 Q&As
Code d'Examen: 1Z0-858
Nom d'Examen: Oracle (Java Enterprise Edition 5 Web Component Developer Certified Professional Exam)
Questions et réponses: 276 Q&As
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NO.1 Given the definition of MyServlet:
11. public class MyServlet extends HttpServlet {
12. public void service(HttpServletRequest request,
13. HttpServletResponse response)
14. throws ServletException, IOException {
15. HttpSession session = request.getSession();
16 session.setAttribute("myAttribute","myAttributeValue");
17. session.invalidate();
18. response.getWriter().println("value=" +
19. session.getAttribute("myAttribute"));
20. }
NO.2 Your web application requires the adding and deleting of many session attributes during a complex use
case. A bug report has come in that indicates that an important session attribute is
being deleted too soon and a NullPointerException is being thrown several interactions after the fact. You
have decided to create a session event listener that will log when attributes are being deleted so you can
track down when the attribute is erroneously being deleted.
Which listener class will accomplish this debugging goal?
A. Create an HttpSessionAttributeListener class and implement the attributeDeleted method and log the
attribute name using the getName method on the event object.
B. Create an HttpSessionAttributeListener class and implement the attributeRemoved method and log the
attribute name using the getName method on the event object.
C. Create an SessionAttributeListener class and implement the attributeRemoved method and log the
attribute name using the getAttributeName method on the event object.
D. Create an SessionAttributeListener class and implement the attributeDeleted method and log the
attribute name using the getAttributeName method on the event object.
Answer: B
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NO.3 }
What is the result when a request is sent to MyServlet?
A. An IllegalStateException is thrown at runtime.
B. An InvalidSessionException is thrown at runtime.
C. The string "value=null" appears in the response stream.
D. The string "value=myAttributeValue" appears in the response stream.
Answer: A
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21.You need to store a Java long primitive attribute, called customerOID, into the session scope.
Which two code snippets allow you to insert this value into the session? (Choose two.)
A. long customerOID = 47L;
session.setAttribute("customerOID", new Long(customerOID));
B. long customerOID = 47L;
session.setLongAttribute("customerOID", new Long(customerOID));
C. long customerOID = 47L;
session.setAttribute("customerOID", customerOID);
D. long customerOID = 47L;
session.setNumericAttribute("customerOID", new Long(customerOID));
E. long customerOID = 47L;
session.setLongAttribute("customerOID", customerOID);
F. long customerOID = 47L;
session.setNumericAttribute("customerOID", customerOID);
Answer: A,C
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NO.4 Which implicit object is used in a JSP page to retrieve values associated with <context-param>
entries in the deployment descriptor?
A. config
B. request
C. session
D. application
Answer: D
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NO.5 You are creating a JSP page to display a collection of data. This data can be displayed in several
different ways so the architect on your project decided to create a generic servlet that generates a
comma-delimited string so that various pages can render the data in different ways. This servlet takes on
request parameter: objectID. Assume that this servlet is mapped to the URL pattern: /WEB-INF/data.
In the JSP you are creating, you need to split this string into its elements separated by commas and
generate an HTML <ul> list from the data.
Which JSTL code snippet will accomplish this goal?
A. <c:import varReader='dataString' url='/WEB-INF/data'
>
<c:param name='objectID' value='${currentOID}' /
>
</c:import>
<ul>
<c:forTokens items'${dataString.split(",")}' var='item'
>
<li>${item}</li>
</c:forTokens>
</ul>
B. <c:import varReader='dataString' url='/WEB-INF/data'
>
<c:param name='objectID' value='${currentOID}' /
>
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'
>
<li>${item}</li>
</c:forTokens>
</ul>
C. <c:import var='dataString' url='/WEB-INF/data'
>
<c:param name='objectID' value='${currentOID}' /
>
</c:import>
<ul>
<c:forTokens items'${dataString.split(",")}' var='item'
>
<li>${item}</li>
</c:forTokens>
</ul>
D. <c:import var='dataString' url='/WEB-INF/data'
>
<c:param name='objectID' value='${currentOID}' /
>
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'
>
<li>${item}</li>
</c:forTokens>
</ul>
Answer: D
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NO.6 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
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NO.7 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
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NO.8 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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