Clock Synchronization Trading Interview Guide
Clock synchronization trading interview guide for timestamps, drift, event ordering, latency measurement, logs, replay, and caveats.
Candidates discussing market data timing, event logs, and distributed trading systems.
Clocks support ordering and measurement
Trading systems use timestamps for latency, sequencing, logs, replay, and investigation. If clocks drift, measured ordering and performance can become misleading.
Distributed systems complicate time
Different machines may observe events at different local times. A careful answer separates exchange timestamps, receive timestamps, and processing timestamps.
Concrete example
A fill may appear to arrive before the order in logs if clocks are inconsistent or timestamps mean different things. Investigation requires knowing timestamp source and precision.
Replay depends on timing choices
Market data replay may use original event time, receive time, or accelerated simulated time. Each choice answers a different testing question.
Common mistakes
Candidates often assume timestamps are absolute truth. Strong answers ask where the timestamp came from, how clocks are synchronized, and what ordering guarantee exists.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.