Java SCWCD, OCWCD MCQ, Java SCWCD Quiz, OCWCD Online MCQ

The Squeaky Bean company has decided to port their web application to a new J2EE 1.4 container. While reviewing the application, a developer realizes that in multiple places within the current application, nearly duplicate code exists that finds enterprise beans. Which pattern should be used to eliminate this duplicate code?

Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map, which two are valid invocations of function foo?

Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly, the consultant created several dozen JSP pages that directly communicate with the database. The Squeaky business team has since purchased a set of business objects to model their system, and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the new system. Which pattern can the developer use to solve this problem?

Which three web application deployment descriptor elements allow web components to gain references to resources or EJB components?

Which EL expression evaluates to the request URI?

Which three are valid URL mappings to a servlet in a web deployment descriptor?

Which one JSTL URL-related tags perform URL rewriting?

Which three are true about TLD files?

A developer has used this code within a servlet:
62. if(request.isUserInRole(“vip”)) {
63. // VIP-related logic here
64. }
What else must the developer do to ensure that the intended security goal is achieved?

Which two actions protect a resource file from direct HTTP access within a web application?

Given: 1. <% int[] nums = {42,420,4200}; 2. request.setAttribute(“foo”, nums); %> 3. ${5 + 3 lt 6} 4. ${requestScope[‘foo’][0] ne 10 div 0} 5. ${10 div 0} What is the result?

Given:
3. class MyServlet extends HttpServlet {
4. public void doPut(HttpServletRequest req, HttpServletResponse resp) throws
ServletException, IOException {
5. // servlet code here …
26. }
27. }
If the DD contains a single security constraint associated with MyServlet and its only
<http-method> tags and <auth-constraint> tags are:
<http-method>GET</http-method>
<http-method>PUT</http-method>
<auth-constraint>Admin</auth-constraint>
Which four requests would be allowed by the container?

A developer is designing a web application that must verify for each request: The originating request is from a trusted network. The client has a valid session. The client has been authenticated. Which design pattern provides a solution in this situation?

A custom JSP tag must be able to support an arbitrary number of attributes whose names are unknown when the tag class is designed. Which two are true?

Which one about WAR files are true?

Given this fragment in a servlet: 23. if(req.isUserInRole(“Admin”)) { 24. // do stuff 25. } And the following fragment from the related Java EE deployment descriptor: 812. 813. Admin 814. Administrator 815. 900. 901. Admin 902. Administrator 903. What is the result?

Given that http://www.example.com/SCWCDtestApp is a validly deployed Java EE web application and that all of the JSP files specified in the requests below exist in the locations specified. Which two requests, issued from a browser, will return an HTTP 404 error?

A developer has created a special servlet that is responsible for generating XML content that is sent to a data warehousing subsystem. This subsystem uses HTTP to request these large data files, which are compressed by the servlet to save internal network bandwidth. The developer has received a request from management to create several more of these data warehousing servlets. The developer is about to copy and paste the compression code into each new servlet. Which design pattern can consolidate this compression code to be used by all of the data warehousing servlets?

Given an HttpServletRequest request and HttpServletResponse response, which sets a cookie “username” with the value “joe” in a servlet?

QUESTION: 133
Given the web application deployment descriptor elements:
11. <filter>
12. <filter-name>ParamAdder</filter-name>
13. <filter-class>com.example.ParamAdder</filter-class>
14. </filter>
…
24. <filter-mapping>
25. <filter-name>ParamAdder</filter-name>
26. <servlet-name>MyServlet</servlet-name>
27. <!– insert element here –>
28. </filter-mapping>
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?