State Management and Consistency Questions

Principles and operational patterns for managing state and ensuring correctness in distributed systems and infrastructure. Topics include differences between configuration state and runtime state, declarative reconciliation loops, handling eventual consistency versus strong consistency, conflict detection and resolution techniques, idempotent operations and optimistic concurrency, distributed locking and leader election, state migrations and versioning, drift detection and remediation, snapshots and backups, and recovery from state corruption. Candidates should be able to explain consistency boundaries, tradeoffs among latency availability and correctness, and common tooling and patterns used to reconcile divergent state.