What triggers an alert for a restart sequence in relational database services (RDS)?

An alert for a restart sequence in relational database services (RDS) is triggered when resets exceed a specified threshold within a defined observation period. The correct answer indicates that if the number of resets exceeds two within a 20-minute timeframe, an alert will be generated. This threshold is designed to help identify unusual activity or issues that may require attention, as frequent resets of the database can indicate performance problems, resource contention, or configuration issues.

The choice reflecting two resets within a 20-minute window effectively balances sensitivity and specificity, allowing for the detection of potential problems without raising alerts too easily for transient or minor issues. This threshold ensures that only significant restart events prompt alerts, allowing teams to focus on genuine performance concerns and ensuring database stability.