One of the use cases in your web application uses many session-scoped attributes. At the end of the use case, you want to clear out this set of attributes from the session object. Assume that this static variable holds this set of attribute names:

201.

private static final Set USE_CASE_ATTRS;

202.

static {

203.

USE_CASE_ATTRS.add("customerOID");

204.

USE_CASE_ATTRS.add("custMgrBean");

205.

USE_CASE_ATTRS.add("orderOID");

206.

USE_CASE_ATTRS.add("orderMgrBean");

207.

}

Which code snippet deletes these attributes from the session object?

A. session.removeAll(USE_CASE_ATTRS);

B. for ( String attr : USE_CASE_ATTRS ) {session.remove(attr);}

C. for ( String attr : USE_CASE_ATTRS ) {session.removeAttribute(attr);}

D. for ( String attr : USE_CASE_ATTRS ) {session.deleteAttribute(attr);}

E. session.deleteAllAttributes(USE_CASE_ATTRS);

Your management has required that all JSPs be created to generate XHTML-compliant content and to facilitate that decision, you are required to create all JSPs using the JSP Document format. In the reviewOrder.jspx page, you need to use several core JSTL tags to process the collection of order items in the customer's shopping cart. Which JSP code snippets must you use in the reviewOrder.jspx page?

A.

B.

C.

D.

hich two are true regarding a web application class loader? (Choose two.)

A. A web application may override the web container's implementation classes.

B. A web application running in a J2EE product may override classes in the javax.* namespace.

C. A web application class loader may NOT override any classes in the java.* and javax.* namespaces.

D. Resources in the WAR class directory or in any of the JAR files within the library directory may be accessed using the J2SE semantics of getResource.

E. Resources in the WAR class directory or in any of the JAR files within the library directory CANNOT be accessed using the J2SE semantics of getResource.

For debugging purposes, you need to record how many times a given JSP is invoked before the user's session has been created. The JSP's destroy method stores this information to a database. Which JSP code snippet keeps track of this count for the lifetime of the JSP page?

A. <%! int count = 0; %><% if ( request.getSession(false) == null ) count++; %>

B. <%@ int count = 0; %><% if ( request.getSession(false) == null ) count++; %>

C. <% int count = 0;if ( request.getSession(false) == null ) count++; %>

D. <%@ int count = 0;if ( request.getSession(false) == null ) count++; %>

E. <%! int count = 0;if ( request.getSession(false) == null ) count++; %>

Your web application views all have the same header, which includes the

B.

C.

D.

E.

F.

G.