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

You are building a web application that will be used throughout the European Union; therefore, it has significant internationalization requirements. You have been tasked to create a custom tag that generates a message using the java.text.MessageFormat class. The tag will take the resourceKey attribute and a variable number of argument attributes with the format, arg<N>. Here is an example use of this tag and its output:
<t:message resourceKey='diskFileMsg' arg0='MyDisk' arg1='1247' />
generates:
The disk "MyDisk" contains 1247 file(s).
Which Simple tag class definition accomplishes this goal of handling a variable number of tag attributes?

• A. public class MessageTag extends SimpleTagSupport
  implements DynamicAttributes {
  private Map attributes = new HashMap();
  public void setDynamicAttribute(String uri, String name,
  Object value) {
  this.attributes.put(name, value);
  }
  // more tag handler methods
  }
• B. public class MessageTag extends SimpleTagSupport
  implements DynamicAttributes {
  private Map attributes = new HashMap();
  public void putAttribute(String name, Object value) {
  this.attributes.put(name, value);
  }
  // more tag handler methods
  }
• C. The Simple tag model does NOT support a variable number of attributes.
• D. public class MessageTag extends SimpleTagSupport
  implements VariableAttributes {
  private Map attributes = new HashMap();
  public void setVariableAttribute(String uri,
  String name, Object value) {
  this.attributes.put(name, value);
  }
  // more tag handler methods
  }
• E. public class MessageTag extends SimpleTagSupport
  implements VariableAttributes {
  private Map attributes = new HashMap();
  public void putAttribute(String name, Object value) {
  this.attributes.put(name, value);
  }
  // more tag handler methods
  }

A developer is designing a multi-tier web application and discovers a need to hide the details of establishing and maintaining remote communications from the client. In addition, the application needs to find, in a transparent manner, the heterogeneous business components used to service the client's requests. Which design patterns, working together, address these issues?

• A. Front Controller and Business Delegate
• B. Business Delegate and Transfer Object
• C. Model-View-Controller and Intercepting Filter
• D. Intercepting Filter and Transfer Object
• E. Business Delegate and Service Locator

You are creating a new JSP page and you need to execute some code that acts when the page is first executed, but only once. Which three are possible mechanisms for performing this initialization code? (Choose three.)

• A. In the constructor of the JSP's Java code.
• B. In a JSP declaration, which includes a static initializer block.
• C. In the init method.
• D. In a JSP declaration, which includes an initializer block.
• E. In the jspInit method.

Within the web application deployment descriptor, which defines a valid JNDI environment entry?

• A. <env-entry>
  <env-entry-name>param/MyExampleString</env-entry-name>
  <env-entry-type>int</env-entry-type>
  <env-entry-value>10</env-entry-value>
  </env-entry>
• B. <env-entry>
  <env-entry-name>param/MyExampleString</env-entry-name>
  <env-entry-type>java.lang.String</env-entry-type>
  <env-entry-value>This is an Example</env-entry-value>
  </env-entry>
• C. <env-entry>
  <env-entry-type>java.lang.Boolean</env-entry-type>
  <env-entry-value>true</env-entry-value>
  </env-entry>
• D. <env-entry>
  <env-entry-name>param/MyExampleString</env-entry-name>
  <env-entry-value>This is an Example</env-entry-value>
  </env-entry>

A web application allows the HTML title banner to be set using a servlet context initialization parameter called titleStr. Which two properly set the title in this scenario? (Choose two.)

• A. <title>${initParam.titleStr}</title>
• B. <title>${paramValues.titleStr}</title>
• C. <title>${titleStr}</title>
• D. <title>${request.get("titleStr")}</title>
• E. <title>${servletParams.titleStr}</title>
• F. <title>${params[0].titleStr}</title>
• G. <title>${initParam['titleStr']}</title>