Given an HttpServletRequest request:
22. String id = request.getParameter("jsessionid");
23. // insert code here
24. String name = (String) session.getAttribute("name")
Which three can be placed at line 23 to retrieve an existing HttpSession object? (Choose three)

• A. HttpSession session = request.getSession("jsessionid");
• B. HttpSession session = request.getSession(true);
• C. HttpSession session = request.getSession(id);
• D. HttpSession session = request.getSession();
• E. HttpSession session = request.getSession(false);

A servlet class is injected with a JDBC data source. After injection has occurred, the servlet needs to create a cache out of some of the data in the database, so as to improve responsiveness.
Which two methods can host the cache creation code? (Choose two)

• A. A method annotated with @Resource
• B. A method annotated with @Init
• C. A method annotated with @PostConstruct
• D. Servlet.destroy()
• E. Servlet.init()
• F. A method annotated with @PreDestroy

View the exhibit.

Assume the tag library in the exhibit is placed in a web application in the path /WEB-INF/tld/example.tld.
1.
2. <ex:hello />
Which JSP code, inserted at line 1, completes the JSP code to invoke the hello tag?

• A. <%@
  taglib prefix="ex"uri:="http://example.com/tld/example" %
  >
• B. <%@ taglib prefix="ex" uri="/WEB-INF/tld" %>
• C. <%@ taglib uri="/WEB-INF/tld/example.tld" %>
• D. <%@
  taglib prefix="ex"uri:="http://localhost:8080/tld/example.tld" %
  >

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}' delims=',' var='item'><li>${item}</li></c:forTokens></ul>
• B. <c:import var='dataString' url='/WEB-INF/data'><c:param name='objectID' value='${currentOID}'
  /></c:import><ul><c:forTokens items'${dataString}' delims=','
  var='item'><li>${item}</li></c:forTokens></ul>
• C. <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>${item}</li></c:forTokens></ul>
• D. <c:import var='dataString' url='/WEB-INF/data'><c:param name='objectID' value='${currentOID}'
  /></c:import><ul><c:forTokens items'${dataString.split(",")}'
  var='item'><li>${item}</li></c:forTokens></ul>