Oracle 1Z0-858 Online Practice Questions and Exam Preparation

Oracle 1Z0-858 Online Questions & Answers

• Question 31:

  A developer is designing a web application that must support multiple interfaces, including:

  an XML web service for B2B HTML for web-based clients WML for wireless customers

  Which design pattern provides a solution for this problem?

  A. Session Facade
  B. Business Delegate
  C. Data Access Object
  D. Model-View-Controller
  E. Chain of Responsibility
  D. Model-View-Controller

• Question 32:

  A developer is designing the presentation tier for a web application which requires a centralized request handling to complete common processing required by each request. Which design pattern provides a solution to this problem?

  A. Remote Proxy
  B. Front Controller
  C. Service Activator
  D. Intercepting Filter
  E. Business Delegate
  F. Data Access Object
  B. Front Controller

• Question 33:

  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);
  B. chain.doFilter(request, response);

• Question 34:

  In your web application, you need to execute a block of code whenever the session object is first created. Which design will accomplish this goal?

  A. Create an HttpSessionListener class and implement the sessionInitialized method with that block of code.
  B. Create an HttpSessionActivationListener class and implement the sessionCreated method with that block of code.
  C. Create a Filter class, call the getSession(false) method, and if the result was null, then execute that block of code.
  D. Create an HttpSessionListener class and implement the sessionCreated method with that block of code.
  E. Create a Filter class, call the getSession(true) method, and if the result was NOT null, then execute that block of code.
  D. Create an HttpSessionListener class and implement the sessionCreated method with that block of code.

• Question 35:

  Which two are true about the JSTL core iteration custom tags? (Choose two.)

  A. It may iterate over arrays, collections, maps, and strings.
  B. The body of the tag may contain EL code, but not scripting code.
  C. When looping over collections, a loop status object may be used in the tag body.
  D. It may iterate over a map, but only the key of the mapping may be used in the tag body.
  E. When looping over integers (for example begin='1' end='10'), a loop status object may not be used in the tag body.
  A. It may iterate over arrays, collections, maps, and strings.
  C. When looping over collections, a loop status object may be used in the tag body.

• Question 36:

  Which two statements are true about the security-related tags in a valid Java EE deployment descriptor? (Choose two.)

  A. Every tag must have at least one tag.
  B. A tag can have many tags.
  C. A given tag can apply to only one tag.
  D. A given tag can contain from zero to many tags.
  E. It is possible to construct a valid tag such that, for a given resource, no user roles can access that resource.
  B. A tag can have many tags.
  E. It is possible to construct a valid tag such that, for a given resource, no user roles can access that resource.

• Question 37:

  Given the web application deployment descriptor elements:

  11.

  12.

  ParamAdder

  13.

  com.example.ParamAdder

  14.

  ...

  24.

  25.

  ParamAdder

  26.

  MyServlet

  27.

  28.

  Which element, inserted at line 27, causes the ParamAdder filter to be applied when MyServlet is invoked by another servlet using the RequestDispatcher.include method?

  B. INCLUDE
  C. include
  D. INCLUDE
  E. include
  B. INCLUDE

• Question 38:

  Your web application views all have the same header, which includes the