A parks department DynamoDB table accumulates ephemeral push-notification receipts that are useless after a few days and keep growing storage cost. Which control best limits that spend?
Select an answer to reveal the explanation.
Short Explanation
Ephemeral receipts are like parking stubs—trash them after they expire. DynamoDB TTL auto-deletes old items so storage does not grow forever.
Full Explanation
DynamoDB TTL expires items after a configured attribute timestamp, controlling storage cost for ephemeral notification data without custom cleanup fleets. Moving ephemeral key-value receipts to Multi-AZ RDS usually raises cost and complexity. Cross-Region replication increases storage and transfer charges. Instance store is ephemeral local disk for a single host, not a durable managed notification store.