Discussion
Object Request Broker (ORB) is
I. A software program that runs on the client as well as on the application server.
II. A software program that runs on the client side only.
III. A software program that runs on the application server, where most of the components reside.
Answer: D
Statement I alone is correct. The Object Request Broker is a program that runs on the client and also on the application server, since it passes requests from clients to objects and returns the results across the network. It is not restricted to the client side only (II), nor to the server only (III), so the options that include either of those statements do not fit. The ORB is the part of CORBA that lets objects on different machines call each other as though they were local.
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