The Object Request Architecture (ORA) is a high-level framework for a distributed environment. It
consists of four components. Which of the following items is NOT one of those components?

A.
Object Services

B.
Application Objects

C.
Application Services

D.
Object Request Brokers (ORBs)

Explanation:
The other answers plus Common Facilities comprise the ORA. The ORA is a product of the Object
Management Group (OMG), which is a nonprofit consortium in Framingham, Massachusetts that
was put together in 1989 to promote the use of object technology in distributed computing systems
(www.omg.org). *The ORB is the fundamental building block of ORA and manages the
communications between the ORAentities. The purpose of the ORB is to support the interaction of
objects in heterogeneous, distributed environments. The objects may be on different types of
computing platforms. *Object Services, supports the ORB in creating and tracking objects as well as
performing access control functions. *Application Objects and Common Facilities support the end
user and use the system services to perform their functions.