Which two are characteristics of the Transfer Object design pattern? (Choose two.)

• A. It reduces network traffic by collapsing multiple remote requests into one.
• B. It increases network performance introducing multiple fine-grained remote requests which return very small amounts of data.
• C. It increases the complexity of the design due to remote synchronization and version control issues.
• D. It increases the complexity of the remote interface by removing coarse-grained methods.

Given:
6.<% int[] nums = {42, 420, 4200};
7.request.setAttribute("foo", nums); %>
Which two successfully translate and result in a value of true? (Choose two.)

• A. ${(requestScope['foo'][0] lt 50) && (3 gt 2)}
• B. ${true or false}
• C. ${requestScope['foo'][1] = 420}
• D. ${requestScope[foo][0] > 500}

Which three are valid values for the body-content attribute of a tag directive in a tag file? (Choose three.)

• A. JSP
• B. dynamic
• C. empty
• D. EL
• E. tagdependent
• F. scriptless

You have been contracted to create a web site for a free dating service. One feature is the ability for one client to send a message to another client, which is displayed in the latter
client's private page. Your contract explicitly states that security is a high priority. Therefore, you need to prevent cross-site hacking in which one user inserts JavaScript code that is then rendered and invoked when another user views that content. Which two JSTL code snippets will prevent cross-site hacking in the scenario above? (Choose two.)

• A. <c:out value='${message}' />
• B. <c:out value='${message}' escapeXml='true' />
• C. <c:out value='${message}' eliminateXml='true' />
• D. <c:out>${message}</c:out>
• E. <c:out eliminateXml='true'>${message}</c:out>