Which of the following statements relating to Distributed Computing Environment (DCE) is FALSE?

A.
It is a layer of software that sits on the top of the network layer and provides services to the applications
above it.

B.
It uses a Universal Unique Identifier (UUID) to uniquely identify users, resources and components.

C.
It provides the same functionality as DCOM, but it is more proprietary than DCOM.

D.
It is a set of management services with a communication layer based on RPC.

Explanation:
Distributed Computing Environment (DCE) does provide the same functionality as DCOM, but it is NOT more
proprietary than DCOM.
Distributed Computing Environment (DCE) is a standard developed by the Open Software Foundation (OSF),
also called Open Group. It is a client/server framework that is available to many vendors to use within their
products. This framework illustrates how various capabilities can be integrated and shared between
heterogeneous systems. DCE provides a Remote Procedure Call (RPC) service, security service, directory
service, time service, and distributed file support. It was one of the first attempts at distributed computing in the
industry.DCE is a set of management services with a communications layer based on RPC. It is a layer of software that
sits on the top of the network layer and provides services to the applications above it. DCE and Distributed
Component Object Model (DCOM) offer much of the same functionality. DCOM, however, was developed by
Microsoft and is more proprietary in nature.
Incorrect Answers:
A: It is true that DCE is a layer of software that sits on the top of the network layer and provides services to the
applications above it.
B: It is true that DCE uses a Universal Unique Identifier (UUID) to uniquely identify users, resources and
components.
D: It is true that DCE is a set of management services with a communication layer based on RPC.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, pp. 1146, 1142