Which Java expression can be used to check whether the web container is currently configured to track sessions via URL rewriting?

• A. servletContext.getEffectiveSessionTrackingModes() .contains (SessionTrackingMode.URL)
• B. servletContext.getSessionCookiesConfiq() .isHttpOnly()
• C. servletContext.getDefaultSessionTrackingModes() .contains(SessionTrackingMode.URL)
• D. servletContext.getSessionCookiesConfiq() .isSecure()

An application stores session data in a JavaBean object. The object is then stored in the HttpSession object.
Which is true?

• A. Thread safety is not an issue, since concurrent access to a single session is impossible.
• B. Appropriate protection against problems caused by concurrent access should be provided by the bean.
• C. The servlet should take precautions to ensure that concurrent access to the bean is prevented.
• D. The servlet should implement SingleThreadModel
• E. Synchronization of all bean methods is required to ensure thread safety.

An appropriate jsp:useBean tag has been placed into a JSP, and identified the bean using the name "theBean".
The bean class includes a method with the following signature:
public boolean isOurCustomer ()
You wish to insert the test true or false into the output HTML based on the return value of this method. Which is true?

• A. This can be achieved using a tag of the form: <jsp:getProperty id= "theBean" property= "ourCustomer"
  />
• B. This can be achieved using a tag of the form: <jsp:getProperty name= "theBean" type= "boolean" property= "ourCustomer" />
• C. This can be achieved using a tag of the form: <jsp:getProperty id= "theBean" invoke
  "getOurCustomer" />
• D. This cannot be achieved because the method isOurCustomer () does not adhere to JavaBeans conventions.
• E. This can be achieved using a tag of the form: <jsp:getProperty name= "theBean" property
  "ourCustomer" />
• F. This cannot be achieved because the return type of isOurCustomer () is not String

Which java code snippet roles "MANAGER" and "EMPLOYEE" in a given application?

• A. @DeclareRoles("MANAGER")@DeclareRoles("EMPLOYEE")public class MyServlet extends HttpServlet {}
• B. @SecurityRoles({ "MANAGER", "EMPLOYEE" })public class MyServlet extends HttpServlet {}
• C. @DeclareRoles({ "MANAGER", "EMPLOYEE" })public class MyServlet extends HttpServlet {}
• D. @DeclareRole("MANAGER")@DeclareRole("EMPLOYEE")public class MyServlet extends HttpServlet {}

All of your JSPs need to have a link that permits users to email the web master. This web application is licensed to many small businesses, each of which have a different email address for the web master. You have decided to use a context parameter that you specify in the deployment descriptor, like this:
42. <context-param>
43. <param-name>webmasterEmail</param-name>
44. <param-value>[email protected]</param-value>
45. </context-param>
Which JSP code snippet creates this email link?

• A. <a href='mailto:${contextInitParam.webmaterEmail}'>contact us</a>
• B. <a href='mailto:${initParam.webmaterEmail}'>contact us</a>
• C. <a href='mailto:${contextParam.webmaterEmail}'>contact us</a>
• D. <a href='mailto:${applicationScope.webmaterEmail}'>contact us</a>