concurrency
Applied AI interview questions tagged concurrency, across every topic.
4 questions · 2 unlocked for you
Concepts behind "concurrency"
The curriculum that explains the ideas these questions test.
Core
Concurrency and Thread SafetyWhen multiple threads touch shared mutable state, interleavings cause race conditions: lost updates, torn reads, corrupted data. Thread safety means correctness under any interleaving. Locks/mutexes enforce mutual exclusion (pessimistic); optimistic concurrency checks for conflicts at commit and retries (compare-and-swap, version columns). Atomic operations avoid locks for simple updates. Deadlock arises when locks are acquired in conflicting orders. Applied-AI interviews probe it because inference servers, batching queues, and shared caches are all concurrent, and the classic double-increment bug still shows up in production.⚙️ System Design for AI in ProductionSign in
Core
Transactions, ACID, and Isolation LevelsA transaction groups several reads and writes so they either all commit or all roll back, with the ACID guarantees of atomicity, consistency, isolation, and durability. Isolation level is the dial that trades concurrency anomalies (dirty reads, non-repeatable reads, phantoms) against throughput, and most databases default to a weaker level than engineers assume. Applied AI and data interviews probe it because pipelines that ignore isolation produce silent, intermittent corruption that no unit test catches.🗄️ Data & SQL EngineeringSign in