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← Logic & PuzzlesIf a network protocol claims guaranteed delivery but packets are sometimes lost, which consequence follows, assuming we use proof by contradiction?
A)Protocol operates with reduced efficiency
B)Protocol's delivery guarantee is disproven✓
C)Network congestion temporarily increases
D)Retransmission timers become ineffective
💡 Explanation
If we assume the negation (the protocol guarantees delivery) is true, and then observe lost packets, a contradiction arises. This is because the observation contradicts the initial assumption, therefore the protocol's guarantee is disproven rather than merely performing less efficiently.
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