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.