Java EE 6 Web Component Developer Certified Expert Exam (1Z1-899) Free Practice Test

Question 1

Which statement is true about web container session management?

A. To activate URL rewriting, the developer must use the HttpServletResponse.setURLRewriting method.

B. The JSESSIONID cookie is stored permanently on the client so that a user may return to the web application and the web container will rejoin that session.

C. If the web application uses HTTPS, then the web container may use the data on the HTTPS request stream to identify the client.

D. Access to session-scoped attributes is guaranteed to be thread-safe by the web container.

Correct Answer: C

Question 2

Given the java code snippet in contextInitialized method of a ServletContextListner:
ServletRegistration.Dynamic sr = (ServletRegistration.Dynamic)sc.addServlet ("myServlet", myServletClass); sr.addMapping("/abc"); sr.setServletSecurityElement(servletSecurityElement); sr.addMapping("/def"); Which statement is true?

A. "/abc" is mapped to "myservlet". The servletSecurityElementy applies to both "/abc" and "/def".

B. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to both "/abc" and "/def".

C. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to "/abc".

D. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to "/def".

E. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to "/abc", but the behavior for "/def" is not specified.

Correct Answer: B

Question 3

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:

Which JSP code snippet declares that this JSP Document is a JavaScript file?

A. <%@ page contentType='application/javascript' %>

B. 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.

C. <jsp:document contentType='application/javascript' />

D. <jsp:directive.page contentType='application/javascript' />

E. <jsp:page contentType='application/javascript' />

Correct Answer: D

Question 4

Given a header in an HI IP request:
X-Retries: 4
A Which two retrieve the value of the header from a given HttpServletRequest request? (Choose two)

A. request.getRequestHeaders("X-Retries").get(0)

B. request.getlntHeader("X-Retries")

C. request-getHeader("X-Retries")

D. request.getRequestHeader("X-Retries")

E. request.getHeaders{"X-Retries").get(0)

Correct Answer: B,C

Question 5

Which is a valid value for the enum EmptyRoleSemantic in Javax.servlet.annotation.ServletSecurity?

A. PERMIT

B. DENYALL

C. EXCLUDE

D. ALLOWALL

E. ADMIT

Correct Answer: A

Question 6

You have built a web application that you license to small businesses. The webapp uses a context parameter, called licenseExtension, which enables certain advanced features based on your client's license package.
When a client pays for a specific service, you provide them with a license extension key that they insert into the <context-param> of the deployment descriptor. Not every client will have this context parameter so you need to create a context listener to set up a default value in the licenseExtension parameter.
Which code snippet will accomplish this goal?

A. String ext = context.getInitParameter('licenseExtension')if ( ext == null ) { context.resetInitParameter('licenseExtension' DEFAULT);}

B. You cannot do this because context parameters CANNOT be altered programmatically.

C. String ext = context.getInitParameter('licenseExtension')if ( ext == null ) { context.setInitParameter('licenseExtension' DEFAULT);}

D. String ext = context.getAttribute('licenseExtension');if ( ext == null ) { context.setAttribute('licenseExtension' DEFAULT);}

E. String ext = context.getParameter('licenseExtension');if ( ext == null ) { context.setParameter('licenseExtension' DEFAULT);}

Correct Answer: C

Question 7

In a jsp-centric shopping cart application cart application to move a client's home address of 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 code snippets can be used to accomplish this goal? (Choose two.)

A. <c:set target='${order}' property='shipAddress'value='${client.homeAddress}' />

B. <jsp:setProperty name='${order}' property='shipAddress'value='${client.homeAddress}' />

C. <c:set var='order' property='shipAddress'value='${client.homeAddress}' />

D. <c:setProperty name='${order}' property='shipAddress'><jsp:getProperty name='client' property='homeAddress' /></c:setProperty>

E. <c:set target='${order}' property='shipAddress'><jsp:getProperty name='client' property='homeAddress'
/></c:set>

F. <c:set var='order' property='shipAddress'><jsp:getProperty name='client' property='homeAddress'
/></c:store>

Correct Answer: A,E

Question 8

Which EL expression returns true if no session has been established with current client?

A. ${not(pageContext.session)}

B. ${requestScope.sessions.this}

C. ${not(requestScope.session)}

D. ${sessionScope.empty}

Correct Answer: A

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Question 9

When using Servlet asynchronous API if you want to dispatch the request back to a particular url - "url" within the same ServletContext which of the following API would you use?

A. RequestDispatcher.forward("/url");

B. AsyncContext.dispatch();

C. RequestDispatcher.include("/url");

D. AsyncContext.dispatch(servletContext, "/url");

E. AsyncContext.dispatch("/url");

F. RequestDispatcher.forward(servletContext, "/url");

G. AsyncContext.start(runnable);

Correct Answer: E

Question 10

A web application for business expense reporting allows uploading expense receipts. Multiple receipts can be uploaded single step using one HTTP request. The servlet that processes the request has been marked with the
@MultipartConfig annotation.
Which method should the servlet use to access the uploaded files?

A. servletRequest.getAllParts()

B. HttpServletRequest.getParts()

C. servletRequest.getParts()

D. HttpServletRequest.getData()

Correct Answer: B

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Oracle Java EE 6 Web Component Developer Certified Expert (1Z1-899) Free Practice Test