Two machines A and B are on two different networks interconnected by routers on the Internet. To allow communication between A and B, which proposition is correct?

Question

Accepted Answer

A and B and all routers must use the same Layer 3 protocol

Answer

A and B must use the same protocols on all layers

Answer

A and B can use different Layer 4 protocols

Answer

A and B must use the same type of physical medium

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Two machines A and B are on two different networks interconnected by routers on ...

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