Oracle Application Server 10g Administration II Part 4 

... HTTP server (
OHS) logging.
Match the directives in the httpd.conf file with their features.
Identify ways to monitor processor usage.
Identify ways to configure
OC4J to improve the performance of
J2EE applications running on an OC4J instance.
Identify the regions on the
Application page that enable you to monitor the performance of J2EE applications.
Identify options that enable you
more...