Multiple ChoiceHard 45s
Quorum read/write overlap
In an N=5 replicated store using quorum reads and writes, which configuration guarantees read-your-writes on the same key?
Options
- 1W=3, R=3 (W + R > N so the read quorum intersects the write quorum)
- 2W=1, R=1 (W + R = 2, far below N, so the quorums never overlap)
- 3W=2, R=2 (W + R = 4, below N=5, so the read quorum misses the write quorum)
- 4W=1, R=5 (W + R = 6 > N, so every read is guaranteed to observe the freshest write)
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