Suppose there is a change in the service or set of operation

Suppose there is a change in the service, or set of operations, provided by a single layer in the OSI model. How does this impact services at the layer above and below?

Solution

OSI model consists seven layers and each of its have a unique functions. Each and every layer communicates with each other layers. And also each layer has its own tasks that can be functioning well independently so the changes in the service, or set of operations, provided by a single layer in the OSI model can be possible without affecting any other layers.