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Which property makes that arbitration non destructive?

  • A.Both messages are discarded, which allows each node to retry after a random interval and therefore avoid a collision
  • B.Neither transmits
  • C.The losing node ceases transmitting immediately, so the winning message is unaffected and no bandwidth is wasted
  • D.The winning message continues without corruption or delay

Answer: D

The higher priority message proceeds uninterrupted, which is what distinguishes this scheme from a collision based network. The last option explains exactly why, which makes it a correct and more instructive version. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. The shared behaviour explains why these belong together and the differences explain why both exist.

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