Oracle Oracle Certifications 1Z0-858 Questions & Answers

• Question 91:

  Click the Exhibit button.

  Assume the tag library in the exhibit is placed in a web application in the path /WEB- INF/tld/example.tld.

  1.

  2.

  Which JSP code, inserted at line 1, completes the JSP code to invoke the hello tag?

  

  A. <%@ taglib prefix="ex" uri="/WEB-INF/tld" %>

  B. <%@ taglib uri="/WEB-INF/tld/example.tld" %>

  C. <%@ taglib prefix="ex"uri="http://localhost:8080/tld/example.tld" %>

  D. <%@ taglib prefix="ex"uri="http://example.com/tld/example" %>

  Correct Answer: D

• Question 92:

  Which JSTL code snippet produces the output "big number" when X is greater than 42, but outputs "small number" in all other cases?

  A. big numbersmall number

  B. big numbersmall number

  C. big numbersmall number

  D. big numbersmall number

  E. big numbersmall number

  Correct Answer: E

• Question 93:

  A developer chooses to avoid using SingleThreadModel but wants to ensure that data is updated in a thread-safe manner. Which two can support this design goal? (Choose two.)

  A. Store the data in a local variable.

  B. Store the data in an instance variable.

  C. Store the data in the HttpSession object.

  D. Store the data in the ServletContext object.

  E. Store the data in the ServletRequest object.

  Correct Answer: AE

• Question 94:

  Your web application uses a simple architecture in which servlets handle requests and then forward to a JSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation. This information must NOT be accessible to any other servlet, JSP or session in the webapp. Which two techniques can you use to accomplish this goal? (Choose two.)

  A. Add attributes to the session object.

  B. Add attributes on the request object.

  C. Add parameters to the request object.

  D. Use the pageContext object to add request attributes.

  E. Add parameters to the JSP's URL when generating the request dispatcher.

  Correct Answer: BE

• Question 95:

  For which three events can web application event listeners be registered? (Choose three.)

  A. when a session is created

  B. after a servlet is destroyed

  C. when a session has timed out

  D. when a cookie has been created

  E. when a servlet has forwarded a request

  F. when a session attribute value is changed

  Correct Answer: ACF

• Question 96:

  Given:

  String value = getServletContext().getInitParameter("foo");

  in an HttpServlet and a web application deployment descriptor that contains:

  foo frodo

  Which two are true? (Choose two.)

  A. The foo initialization parameter CANNOT be set programmatically.

  B. Compilation fails because getInitParameter returns type Object.

  C. The foo initialization parameter is NOT a servlet initialization parameter.

  D. Compilation fails because ServletContext does NOT have a getInitParameter method.

  E. The foo parameter must be defined within the element of the deployment descriptor.

  F. The foo initialization parameter can also be retrieved using getServletConfig().getInitParameter("foo").

  Correct Answer: AC

• Question 97:

  Click the Exhibit button.

  Assuming the tag library in the exhibit is imported with the prefix forum, which custom tag invocation produces a translation error in a JSP page?

  

  A.

  B. My message body.

  C. ${param.body}

  D. <%= request.getParameter( "body" ) %>

  E. ">My message body.

  Correct Answer: D

• Question 98:

  Which JSTL code snippet can be used to import content from another web resource?

  A.

  B.

  C.

  D.

  E. Importing cannot be done in JSTL. A standard action must be used instead.

  Correct Answer: A

• Question 99:

  A custom tag is defined to take three attributes. Which two correctly invoke the tag within a JSP page? (Choose two.)

  A.

  B.

  C.

  D.

  E.

  F.

  G. foobarbaz

  Correct Answer: AG

• Question 100:

  In a JSP-centric shopping cart application, you need to move a client's home address of the Customer object into the shipping address of the Order object. The address data is stored in a value object class called Address with properties for: street address, city, province, country, and postal code. Which two JSP code snippets can be used to accomplish this goal? (Choose two.)

  A.

  B.

  C.

  D.

  E.

  F.

  Correct Answer: BE