B. SAME-LAYER INTERACTION OCCURS ON MULTIPLE COMPUTERS. THE FUNCTIO...

4.

B. Same-layer interaction occurs on multiple computers. The functions defined by

that layer typically need to be accomplished by multiple computers—for example, the

sender setting a sequence number for a segment, and the receiver acknowledging

receipt of that segment. A single layer defines that process, but the implementation of

that layer on multiple devices is required to accomplish the function.