Discussion
What is the main reason the OSI model was created?
Answer: C
Correct answer: So different networks could communicate.
The OSI reference model was produced by ISO to allow equipment from different manufacturers, running different proprietary protocol stacks, to interoperate. Dividing the problem into seven layers with defined interfaces means each layer can be implemented independently, and a change at one layer need not disturb the others. It is a reference model rather than a protocol suite, and it long predates any single vendor’s use of it.
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