Question 16 :
What is POA ?
Portable Object Adapter. A CORBA standard for building server-side applications that are portable across heterogeneous ORBs.
Question 17 :
What is point-to-point messaging system ?
A messaging system built on the concept of message queues. Each message is addressed to a specific queue; clients extract messages from the queues established to hold their messages.
Question 18 :
What is primary key ?
An object that uniquely identifies an entity bean within a home.
Question 19 :
What is principal ?
The identity assigned to a user as a result of authentication.
Question 20 :
What is privilege ?
A security attribute that does not have the property of uniqueness and that can be shared by many principals.