Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional - 1Z0-858

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

Click the Exhibit button.
The Appliance class is a Singleton that loads a set of properties into a Map from an external data source. Assume:
An instance of the Appliance class exists in the application-scoped attribute, appl The appliance object includes the name property that maps to the value Cobia The request-scoped attribute, prop, has the value name.
Which two EL code snippets will display the string Cobia? (Choose two.)

• A. ${appl.properties[prop]}
• B. ${appl.properties.prop}
• C. ${appl.properties[name]}
• D. ${appl.properties.name}
• E. ${appl.getProperties().get(prop)}
• F. ${appl.getProperties().get('name')}

Which two are characteristics of the Intercepting Filter pattern? (Choose two.)

• A. It can be added and removed unobtrusively, without requiring changes to existing code.
• B. It forces resource authentication to be distributed across web components.
• C. It provides centralized request handling for incoming requests.
• D. It reduces coupling between presentation-tier clients and underlying business services.
• E. It allows preprocessing and postprocessing on the incoming requests and outgoing responses.

Given a portion of a valid Java EE web application's directory structure:
MyApp | |-- File1.html | |-- Directory1 | |-- File2.html | |-- META-INF |-- File3.html
You want to know whether File1.html, File2.html, and/or File3.html will be directly accessible by your web client's browsers.
Which statement is true?

• A. All three files are directly accessible.
• B. Only File2.html is directly accessible.
• C. Only File3.html is directly accessible.
• D. Only File2.html and File3.html are directly accessible.
• E. Only File1.html and File3.html are directly accessible.
• F. Only File1.html is directly accessible.
• G. Only File1.html and File2.html are directly accessible.

You have built a web application with tight security. Several directories of your webapp are used for internal purposes and you have overridden the default servlet to send an HTTP 403 status code for any request that maps to one of these directories. During testing, the Quality Assurance director decided that they did NOT like seeing the bare response page generated by Firefox and Internet Explorer. The director recommended that the webapp should return a more user-friendly web page that has the same look-and-feel as the webapp plus links to the webapp's search engine. You have created this JSP page in the /WEB-INF/jsps/error403.jsp file. You do NOT want to alter the complex logic of the default servlet. How can you declare that the web container must send this JSP page whenever a 403 status is generated?

• A. <error-page>
  <status-code>403</status-code>
  <location>/WEB-INF/jsps/error403.jsp</location>
  </error-page>
• B. <error-page>
  <error-code>403</error-code>
  <url>/WEB-INF/jsps/error403.jsp</url>
  </error-page>
• C. <error-page>
  <error-code>403</error-code>
  <location>/WEB-INF/jsps/error403.jsp</location>
  </error-page>
• D. <error-page>
  <status-code>403</status-code>
  <url>/WEB-INF/jsps/error403.jsp</url>
  </error-page>