System Design · Senior · Question 58 of 75
In a replicated store with N=3, why choose R=2 and W=2?
- ✓Correct answer: R + W > N guarantees that read and write quorums overlap, so a read sees the latest acknowledged write
- 2To use less storage
- 3Because N must equal R + W
Explanation
Smaller quorums are faster and more available but may return stale data.