CIW Enterprise Specialist Part 2 CORBA Servers Adv Features Security 

... and user-defined exceptions are covered, in addition to,
Dynamic Invocation Interface (
DII) and how it is used to allow a client to access any
CORBA object. Instruction is given on constructing an argument list, preparing for and extracting the return value, and invoking the
Request. Finally, security, firewalls and firewall types are covered, along with the CORBA security service model and
more...