To answer this question, you need to understand the benefits of using a layered network model. Let's go through each option to understand why it is correct or incorrect:
Option A) It facilitates troubleshooting - This option is correct because a layered network model provides a structured approach to troubleshooting network issues. Each layer can be individually tested and diagnosed, making it easier to identify and resolve problems.
Option B) It breaks the complex process of networking into more manageable chunks - This option is correct because a layered network model divides the networking process into different layers, each responsible for a specific set of functions. This division makes the overall networking process more organized and easier to understand.
Option C) It allows layers developed by different vendors to interoperate - This option is correct because a layered network model provides a standardized framework for networking. Different vendors can develop their own implementations of each layer as long as they adhere to the specifications and protocols defined by the model. This allows interoperability between different vendor products.
Option D) All of the above - This option is correct because all of the benefits mentioned in options A, B, and C are true. Using a layered network model facilitates troubleshooting, breaks the complex process of networking into more manageable chunks, and allows layers developed by different vendors to interoperate.
The correct answer is D) All of the above. This option is correct because it includes all the benefits of using a layered network model explained in options A, B, and C.