A developer has created a web application that includes a servlet for each use case in the application. These servlets have become rather difficult to maintain because the request processing methods have become very large. There is also common processing code in many servlets because these use cases are very similar. Which two design patterns can be used together to refactor and simplify this web application? (Choose two.)

• A. Front Controller
• B. Model-View-Controller
• C. Session Facade
• D. Business Delegate
• E. View Helper
• F. Proxy

Click the Exhibit button.
The attribute "name" has a value of "Foo,"
What is the result if this tag handler's tag is invoked?

• A. done
• B. Compilation fails because of an error in this code.
• C. Foodone
• D. An exception is thrown at runtime.
• E. No output is produced from this code.
• F. Foo

You have built a web application that you license to small businesses. The webapp uses a context parameter, called licenseExtension, which enables certain advanced features based on your client's license package. When a client pays for a specific service, you provide them with a license extension key that they insert into the <context-param> of the deployment descriptor. Not every client will have this context parameter so you need to create a context listener to set up a default value in the licenseExtension parameter. Which code snippet will accomplish this goal?

• A. String ext = context.getAttribute('licenseExtension');
  if ( ext == null ) {
  context.setAttribute('licenseExtension', DEFAULT);
  }
• B. String ext = context.getInitParameter('licenseExtension');
  if ( ext == null ) {
  context.setInitParameter('licenseExtension', DEFAULT);
  }
• C. String ext = context.getParameter('licenseExtension');
  if ( ext == null ) {
  context.setParameter('licenseExtension', DEFAULT);
  }
• D. You cannot do this because context parameters CANNOT be altered programmatically.
• E. String ext = context.getInitParameter('licenseExtension');
  if ( ext == null ) {
  context.resetInitParameter('licenseExtension', DEFAULT);
  }

Given:
1 . <% int[] nums = {42,420,4200};
2 . request.setAttribute("foo", nums); %>
3 . ${5 + 3 lt 6}
4 . ${requestScope['foo'][0] ne 10 div 0}
5 . ${10 div 0}
What is the result?

• A. false true 0
• B. An exception is thrown.
• C. true true Infinity
• D. true true
• E. false true
• F. Compilation or translation fails.
• G. false true Infinity

Click the Exhibit button.
Assume the product attribute does NOT yet exist in any scope.
Which two create an instance of com.example.Product and initialize the name and price properties to the name and price request parameters? (Choose two.)

• A. <jsp:useBean id="product" class="com.example.Product" />
  < jsp:setProperty name="product" property="name"
  value="${param.name}" />
  < jsp:setProperty name="product" property="price"
  value="${param.price}" />
• B. <jsp:useBean id="product" class="com.example.Product">
  < jsp:setProperty name="product" property="name"
  value="${name}" />
  < jsp:setProperty name="product" property="price"
  value="${price}" />
  < /jsp:useBean>
• C. <jsp:useBean id="product" class="com.example.Product" />
  < jsp:setProperty name="product" property="*" />
• D. <jsp:useBean id="product" class="com.example.Product" />
  < % product.setName( request.getParameter( "name" ) ); %>
  < % product.setPrice( request.getParameter( "price" ) ); %>