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Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:

1. In your web application, you need to execute a block of code whenever the session object is first created. Which design will accomplish this goal?

A) Create a Filter class, call the getSession(false) method, and if the result was null, then execute that block of code.
B) Create a Filter class, call the getSession(true) method, and if the result was NOT null, then execute that block of code.
C) Create an HttpSessionActivationListener class and implement the sessionCreated method with that block of code.
D) Create an HttpSessionListener class and implement the sessionCreated method with that block of code.
E) Create an HttpSessionListener class and implement the sessionInitialized method with that block of code.

2. DRAG DROP
Click the Task button.
Given a request from mybox.example.com, with an IP address of 10.0.1.11 on port 33086, place the appropriate ServletRequest methods onto their corresponding return values.

3. Which two statements are true about the security-related tags in a valid Java EE deployment descriptor? (Choose two.)

A) A given <web-resource-collection> tag can contain from zero to many <url-pattern> tags.
B) Every <security-constraint> tag must have at least one <http-method> tag.
C) A <security-constraint> tag can have many <web-resource-collection> tags.
D) It is possible to construct a valid <security-constraint> tag such that, for a given resource, no user roles can access that resource.
E) A given <auth-constraint> tag can apply to only one <web-resource-collection> tag.

4. 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<String> 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) for ( String attr : USE_CASE_ATTRS ) {
session.removeAttribute(attr);
}
B) for ( String attr : USE_CASE_ATTRS ) {
session.deleteAttribute(attr);
}
C) session.deleteAllAttributes(USE_CASE_ATTRS);
D) for ( String attr : USE_CASE_ATTRS ) {
session.remove(attr);
}
E) session.removeAll(USE_CASE_ATTRS);

5. In a JSP-centric web application, you need to create a catalog browsing JSP page. The catalog is stored as a List object in the catalog attribute of the webapp's ServletContext object. Which scriptlet code snippet gives you access to the catalog object?

A) <% List catalog = context.getAttribute("catalog"); %>
B) <% List catalog = config.getAttribute("catalog"); %>
C) <% List catalog = servletContext.getAttribute("catalog"); %>
D) <% List catalog = application.getAttribute("catalog"); %>

Solutions: