Multiple ChoiceBeginner 45s
Cross-region quorum latency cost
A quorum system spans 3 regions (us-east, eu-west, ap-south) with ~150ms RTT between them. Why does requiring a write quorum of 2 cause a latency floor?
Options
- 1Because the slowest acknowledgement of the farthest reachable replica bounds quorum completion
- 2Because TLS handshakes between regions triple the packet count, bounding completion by extra round trips
- 3Because quorums require every replica to respond, so the slowest region bounds completion
- 4Because cross-region links only carry UDP, so quorum acknowledgements are retransmitted and delayed
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