Oracle Oracle Certifications 1Z0-858 Questions & Answers

• Question 81:

  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. ejb/AccountSessioncom.example.AccountHomecom.example.Account

  B. ejb/AccountSessioncom.example.AccountHomecom.example.Account

  C. ejb/AccountSessioncom.example.AccountHomecom.example.Account

  D. ejb/AccountSessioncom.example.AccountHomecom.example.Account

  Correct Answer: C

• Question 82:

  Which two from the web application deployment descriptor are valid? (Choose two.)

  A. */error.html

  B. java.lang.Error/error.html

  C. java.lang.Throwable/error.html

  D. java.io.IOException/error.html

  E. NullPointerException/error.html

  Correct Answer: CD

• Question 83:

  After a merger with another small business, your company has inherited a legacy WAR file but the original source files were lost. After reading the documentation of that web application, you discover that the WAR file contains a useful tag library that you want to reuse in your own webapp packaged as a WAR file.

  What do you need to do to reuse this tag library?

  A. Simply rename the legacy WAR file as a JAR file and place it in your webapp's library directory.

  B. Unpack the legacy WAR file, move the TLD file to the META-INF directory, repackage the whole thing as a JAR file, and place that JAR file in your webapp's library directory.

  C. Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the whole thing as a JAR file, and place that JAR file in your webapp's library directory.

  D. Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the WAR, and place that WAR file in your webapp's WEB-INF directory.

  Correct Answer: C

• Question 84:

  Which path is required to be present within a WAR file?

  A. /classes

  B. /index.html

  C. /MANIFEST-INF

  D. /WEB-INF/web.xml

  E. /WEB-INF/classes

  F. /WEB-INF/index.html

  G. /META-INF/index.xml

  Correct Answer: D

• Question 85:

  Given:

  11.

  12.

  catalog

  13.

  /catalogTemplate.jsp

  14.

  10

  15.

  Which two are true? (Choose two.)

  A. Line 13 is not valid for a servlet declaration.

  B. Line 14 is not valid for a servlet declaration.

  C. One instance of the servlet will be loaded at startup.

  D. Ten instances of the servlet will be loaded at startup.

  E. The servlet will be referenced by the name catalog in mappings.

  Correct Answer: CE

• Question 86:

  You have built a web application with tight security. Several directories of your webapp are used for internal purposes and you have overridden the default servlet to send an HTTP 403 status code for any request that maps to one of these directories. During testing, the Quality Assurance director decided that they did NOT like seeing the bare response page generated by Firefox and Internet Explorer. The director recommended that the webapp should return a more user-friendly web page that has the same look-and- feel as the webapp plus links to the webapp's search engine. You have created this JSP page in the / WEB-INF/jsps/error403.jsp file. You do NOT want to alter the complex logic of the default servlet. How can you declare that the web container must send this JSP page whenever a 403 status is generated?

  A. 403/WEB-INF/jsps/error403.jsp

  B. 403/WEB-INF/jsps/error403.jsp

  C. 403/WEB- INF/jsps/error403.jsp

  D. 403/WEB- INF/jsps/error403.jsp

  Correct Answer: C

• Question 87:

  Servlet A forwarded a request to servlet B using the forward method of RequestDispatcher. What attribute in B's request object contains the URI of the original request received by servlet A?

  A. REQUEST_URI

  B. javax.servlet.forward.request_uri

  C. javax.servlet.forward.REQUEST_URI

  D. javax.servlet.request_dispatcher.request_uri

  E. javax.servlet.request_dispatcher.REQUEST_URI

  Correct Answer: B

• Question 88:

  You want to create a valid directory structure for your Java EE web application, and you want to put your web application into a WAR file called MyApp.war. Which two are true about the WAR file? (Choose two.)

  A. At deploy time, Java EE containers add a directory called META-INF directly into the MyApp directory.

  B. At deploy time, Java EE containers add a file called MANIFEST.MF directly into the MyApp directory.

  C. It can instruct your Java EE container to verify, at deploy time, whether you have properly configured your application's classes.

  D. At deploy time, Java EE containers add a directory call META-WAR directly into the MyApp directory.

  Correct Answer: AC

• Question 89:

  Click the Exhibit button. Given the web application deployment descriptor elements:

  11.

  12.

  ParamAdder

  13.

  com.example.ParamAdder

  14.

  ...

  31.

  32.

  ParamAdder

  33.

  Destination

  34.

  ...

  55.

  56.

  Destination

  57.

  /dest/Destination

  58.

  What is the result of a client request of the Source servlet with no query string?

  

  A. The output "filterAdded = null" is written to the response stream.

  B. The output "filterAdded = addedByFilter" is written to the response stream.

  C. An exception is thrown at runtime within the service method of the Source servlet.

  D. An exception is thrown at runtime within the service method of the Destination servlet.

  Correct Answer: A

• Question 90:

  Given a Filter class definition with this method:

  21.

  public void doFilter(ServletRequest request,

  22.

  ServletResponse response,

  23.

  FilterChain chain)

  24.

  throws ServletException, IOException {

  25.

  // insert code here

  26.

  }

  Which should you insert at line 25 to properly invoke the next filter in the chain, or the target servlet if there are no more filters?

  A. chain.forward(request, response);

  B. chain.doFilter(request, response);

  C. request.forward(request, response);

  D. request.doFilter(request, response);

  Correct Answer: B