Multiple ChoiceHard 45s
OR-Set vs LWW register semantics
Two replicas concurrently add and remove the same element. Which CRDT guarantees that adds win unless a remove observed the add, tracking causality per element?
Options
- 1G-Counter (grow-only counter)
- 2OR-Set (Observed-Remove Set)
- 3LWW-Register (last-writer-wins)
- 4PN-Counter (positive-negative)
Think you can answer under pressure?
Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.