Given a JSP page:
1 1. <n:recurse>
1 2. <n:recurse>
1 3. <n:recurse>
1 4. <n:recurse />
1 5. </n:recurse>
1 6. </n:recurse>
1 7. </n:recurse>
The tag handler for n:recurse extends SimpleTagSupport.
Assuming an n:recurse tag can either contain an empty body or another n:recurse tag, which strategy allows the tag handler for n:recurse to output the nesting depth of the deepest n:recurse tag?

• A. If the tag has a body, invoke the fragment for that body.Otherwise, start a counter at 1.
  Call getParent(). If it returns null, output the value of the counter Otherwise, increment the counter and continue from where getParent() is called.
• B. It is impossible to determine the deepest nesting depth because it is impossible for tag handlers that extend SimpleTagSupport to communicate with their parent and child tags.
• C. Start a counter at 1. Call getChildTags(). If it returns null, output the value of the counter.
  Otherwise, increment counter and continue from where getChildTags() is called. Skip processing of the body.
• D. Create a private non-static attribute in the tag handler class called count of type int initialized to 0. Increment count in the doTag method. If the tag has a body, invoke the fragment for that body. Otherwise, output the value of count.

You are building a dating web site. The client's date of birth is collected along with lots of other information. The Person class has a derived method, getAge():int, which returns the person's age calculated from the date of birth and today's date. In one of your JSPs you need to print a special message to clients within the age group of 25 through 35. Which two
EL code snippets will return true for this condition? (Choose two.)

• A. ${client.age between [25,35]}
• B. ${client.age <= 35 && client.age >= 25}
• C. ${client.age between 25 and 35}
• D. ${client.age in [25,35]}
• E. ${not client.age > 35 && client.age < 25}
• F. ${client.age le 35 and client.age ge 25}

Which two are characteristics of the Service Locator pattern? (Choose two.)

• A. It increases source code duplication and decreases reuse.
• B. It degrades network performance due to increased access to distributed lookup services.
• C. It encapsulates component lookup procedures.
• D. It improves client performance by caching context and factory objects.

Given an HttpServletRequest request:
2 2. String id = request.getParameter("jsessionid");
2 3. // insert code here
2 4. 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);