Try this exercise. Click the correct answer from the options.
In a deterministic backtest that replays historical market ticks, you want to detect dropped packets or gaps in the tick stream so the strategy can handle missing data. Each tick is represented as (timestamp, seq, price, size). Which field should you check to reliably detect sequence gaps or dropped packets?
Click the option that best answers the question.
- timestamp
- `seq` (sequence number)
- price
- size