78 You are building a dating service web site. Part of the form to submit a client's profile is a group of radio buttons for the person's hobbies: 20. ＜input type = 'radio' name = 'hobbyEnum' value = 'HIKING'＞ Hiking ＜br＞ 21. ＜input type = 'radio' name = 'hobbyEnum' value = 'SKING'＞ Sking ＜br＞ 22. ＜input type = 'radio' name = 'hobbyEnum' value = 'SCUBA'＞ SCUBA ＜br＞ 23. ＜! - - and more options - - ＞＞ After the user submits this form, a confirmation screen is displayed with these hobbies listed. Assume that an application-scoped hobbies, holds a map between the hobby enumerated type and the display name. Which EL code snippet will display Nth element of the user's selected hobbles?
(A) ${hobbies [hobbyEnum[N]}
(B) ${hobbies [paramValues.hobbyEnum[N]]}
(C) ${hobbies [paramValues @ 'hobbyEnum' @N]
(D) ${hobbies.get(paramValues.hobbyEnum[N]) }
(E) ${hobbies [paramValues.hobbyEnum.get(N)] }

74 You are creating a JSP page to display a collection of data. This data can be displayed in several different ways so the architect on your project decided to create a generic servlet that generates a comma delimited string so that various pages can render the data in different ways. This  servlet takes on request parameter: objoctID Assume that this servlet is mapped to the URL pattern: /WEB-INF/data. In the JSP you are creating, you need to split this string into its elements separated by commas and generate an HTML ＜ul＞ list from the data. Which JSTL code snippet will accomplish this goal? (A)＜c:import varReader='dataString' url='/WEB-INF/data'＞＜c:param name='objectID' value='${currentOID}' /＞＜/c:import＞＜ul＞＜c:forTokens items'${dataString.split(",")}' var='item'＞＜li＞ ${item}＜/li＞＜/c:forTokens＞＜/ul＞ (B)＜c:import varReader='dataString' url='/WEB-INF/data'＞＜c:param name='objectID' value='${currentOID}' /＞＜/c:import＞＜ul＞＜c:forTokens items'${dataString}' delims=',' var='item'＞＜li＞${item}＜/li＞＜/c:forTokens＞＜/ul＞ (C)＜c:import var='dataString' url='/WEB-INF/data'＞＜c:param name='objectID' value='${currentOID}' /＞＜/c:import＞＜ul＞＜c:forTokens items'${dataString.split(",")}' var='item'＞＜li＞${item}＜/li＞＜/c:forTokens＞＜/ul＞ (D)＜c:import var='dataString' url='/WEB-INF/data'＞＜c:param name='objectID' value='${currentOID}' /＞＜/c:import＞＜ul＞＜c:forTokens items'${dataString}' delims=',' var='item'＞＜li＞${item}＜/li＞＜/c:forTokens＞＜/ul＞

75 A developer wants to make a name attribute available to all servlets associated with a particular user, across multiple requests from that user, from the same browser instance. Which two provide this capability from within a tag handler? (Choose two) (A) pageContext.setAttribute("name", theValue); (B) pageContext.setAttribute("name", getSession() ); (C) pageContext.getRequest().setAttribute("name", theValue); (D) pageContext.getSession().setAttribute("name", theValue); (E) pageContext.setAttribute("name", theValue, PageContext.PAGE_SCOPE); 

複選題76 You want to create a valid directory structure for your Java EE web application, and your application uses tag files and a JAR file. Which three must be located directly in your WEB-INF directory (NOT in a subdirectory of WEB-INF)? (Choose three.) (A) The JAR file (B) A directory called lib (C) A directory called tags (D) A directory called TLDs (E) A directory called classes F. A directory called META-INF

複選題77 Given that a web application consists of two HttpServlet classes, ServletA and ServletB, and the ServerletA service method:  20. String key = "com.example.data";  21. session.setAttribute(key, "Hello");  22. object value = session.getAttribute(key);  23. Assume session is an HttpSession, and is not referenced anywhere else in Servlet A Which two changes, taken together, ensure that value is equal to "Hello" on line 23? (Choose two) (A)ensure that the Servlet Bservice method is synchronized (B)ensure that the Servlet A service method is synchronized (C)ensure that Servlet B synchronizes on the session object when setting session attributes (D)enclose lines 21-22 in synchronized block:synchronized(this) (session.setAttribute(key, "Hello");value = session.getAttribute(key);) (E) enclose lines 21-22 in synchronized block:synchronized(session) (session.setAttribute(key, "Hello");value = session.getAttribute(key);)

複選題79 A web application allows the HTML title banner to be set using a context initialization parameter called titlestr. Which two properly set the title in the scenario? (Choose two) (A) ＜title＞ $ {titlestr} ＜/title＞ (B) ＜title＞ $ {initparam.titlestr}＜/title＞ (C) ＜title＞ $ {param [0]. titlestr} ＜/title＞ (D) ＜title＞ $ {paramValues.titleStr} ＜/title＞ (E) ＜title＞ $ {initParam ['titleStr'] } ＜/title＞ F. ＜title＞ $ {servletParams.titleStr} ＜/title＞ G. ＜title＞ $ {request.get ("titleStr") } ＜/title＞

80 Given the portion of a valid Java EE web application's directory structure: You want to know whether File1.html, File2.html, and/or File3.html is protected from direct access by your web client's browsers. What statement is true? (A) All three files are directly accessible. (B) Only File1.html is directly accessible. (C) Only File2.html is directly accessible. (D) Only File3.html is directly accessible. (E) Only File1.html and File2.html are directly accessible. F. Only File1.html and File3.html are directly accessible. G. Only File2.html and File3.html are directly accessible.

Explanation Note: * WEB-INF is the folder just under the root of a WAR that holds information that you don't want to be accessible to a client via a URL request. Specifically, it holds the web.xml, classes, and lib directories, but you can put anything you want to hide from the client there. * META-INF is what discriminates a JAR file from a plain ZIP file. It holds the manifest file and may hold other deployment information as needed.  81 When using Servlet asynchronous API if you want to dispatch the request back to a particular url -"/url" within the same Servlet Context which of the following API would you use? (A) ASyncContext.dispatch(); (B) AsyncContext.dispatch("/url"); (C) AsyncContext.dispatch(servletContext, "/url"); (D) AsyncContext.start(runnable); (E) RequestDispatcher.fotward("/url"); F. RequestDispatcher.forward(servletContext, "/url"); G. RequestDispatcher.include("/url");

複選題82 You want to create a filter for your web application and your filter will implement .servlet.Filter. Which two statements are true? (Choose two) (A) Your filter class must implement an init method and a destroy method. (B) Your filter class must also implement javax.sarvlat.FilterChain. (C) When your filter chains to the next filter, it should pass the same arguments it received in its doFilter method. (D) The method that your filter invokes on the object it received that implementsjavax - servlet.Filterchain can invoke either another filter or a servlet. (E) Your filter class must implement a doFilter method that takes, among other things, an HttpServletRequest object and an HttpServletresponse object.

83 Which describes a trigger that causes a call to an AsyncListener? (A) Completion of processing (B) Receipt of a new request from the same client (C) Addition of a new filter to the processing stream for this request (D) Completion of each timer interval

複選題84 Which two are valid for transport for the enum TransportGuarantee in javax.servlet.annotation.ServletSecurity? (Choose two) (A) NONE (B) SECURE (C) INTEGRAL (D) ENCRYPTED (E) CONFIDENTIAL