Implementation Manager (IM) Specialist CHTS Practice Test

What is another name for the OSI Model?

1. IEEE Model

2. Department of Defense or DoD model

3. TCP/IP Model

4. HL7 model

The correct answer is: Department of Defense or DoD model

The OSI Model, which stands for Open Systems Interconnection Model, can also be referred to as the Department of Defense or DoD model due to its historical context and development. The OSI Model was developed by the International Organization for Standardization (ISO) and serves as a framework that standardizes the functions of a telecommunication or computing system into seven distinct layers. However, the term "DoD model" is commonly associated with a specific networking reference model known as TCP/IP, which is also referred to as the DoD model owing to the Department of Defense's involvement in the development of the TCP/IP protocols. While the DoD model consists of four layers (Application, Transport, Internet, and Network Interface), it provides a foundation for practical implementations that align with the theoretical guidelines set by the OSI Model. This relationship is important because it highlights how the OSI Model's concepts have influenced network architecture, even as different models have emerged. Understanding this context contributes to a fuller grasp of networking principles and the evolution of communication protocols, making the DoD model an appropriate alternative designation for the OSI Model in certain discussions regarding networking frameworks.