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Oracle 1z0-899 Exam Practice Questions (P. 3)

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Question #11
APIs for dynamically registering servlets and filters can be called at:
  1. A
    Context initialization time
  2. B
    Any time
  3. C
    There is no way to dynamically register servlets and filters
  4. D
    Context destruction time
  5. E
    Injected into a servlet context

Correct Answer:
A

Question #12
ServletRegistration.Dynamic can be used to configure (Choose two)
  1. A
    Filter mappings
  2. B
    add init params
  3. C
    set asyncSupported to true
  4. D
    add Listeners

Correct Answer:
BC
Reference:
http://www.softwareengineeringsolutions.com/blogs/2010/08/01/
(3rd paragraph)

Question #13
A web application wants to register a new servlet at runtime using one of the servletContext.addServlet methods.
In the implementation of which method is it legal to perform this operation?
  1. A
    AsyncListner.oncomplete
  2. B
    Servlet.init
  3. C
    ServletContextListener.contextInitialize
  4. D
    ServletrequestListener.contextInitialize

Correct Answer:
C

Question #14
You want to create a filter for your web application and your filter will implement
.servlet.Filter.
Which two statements are true? (Choose two)
  1. A
    Your filter class must implement an init method and a destroy method.
  2. B
    Your filter class must also implement javax.sarvlat.FilterChain.
  3. C
    When your filter chains to the next filter, it should pass the same arguments it received in its doFilter method.
  4. 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.
  5. E
    Your filter class must implement a doFilter method that takes, among other things, an HttpServletRequest object and an HttpServletresponse object.

Correct Answer:
AD

Question #15
You have a simple wpb application that has a single Front Controller servlet that dispatches to JSPs generate a variety of views. Several of these views require further database processing to retrieve the necessary order object using the orderID request parameter. To do this additional processing, you pass the request first to a servlet that is mapped to the URL pattern /WEB INF / retrieveOrder.do. in the deployment descriptor. This servlet takes two request parameters, the ordered and the jspID and the jspURL. It handles the database calls to retrieve and build the complex order objects and then it dispatches to the jspURL.
Which code snippet in the Front Controller servlet dispatches the request to the order retrieval servlet?
  1. A
    reques.setAttribute ("orderID", orderIS); request.setAttribute("jspURL", jspURL); = context.getRequestDispathcher ("/WEB – INF / retrieveOrder.do"); view.forward(request, response)
  2. B
    reques.setAttribute ("orderID", orderIS); request.setAttribute("jspURL", jspURL); Dispatcher view = request.getDispatcher (".WEB – INF / retrieveOrder.do"); View.forwardRequest (request, response);
  3. C
    String T= "/WEB – INF / retrieveOrder.do?orderID = %d&jspURl = %s"; String url = String.format (T, ordered, jspURL); = context.getRequestDispatcher (url); View.forward (request, response) ;
  4. D
    String T= "/WEB – INF / retrieveOrder.do?orderID = %d&jspURl = %s"; String url = String.format (T, ordered, jspURL); = context.getRequestDispatcher (url);

Correct Answer:
C

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