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