Computer Networking
What is the main reason the OSI model was created?

So application developers can change only one layer's protocols at a time.
So Cisco could use the model.
To create a layered model larger than the DoD model.
So different networks could communicate.

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Computer Networking
What is a stub network?

A network with more than one exit point.
A network that has only one entry and exit point.
A network with only one entry and no exit point.
A network with more than one exit and entry point.

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