What is the correct approach to determine the ingestion cost for 10TB of logs in Datadog?

The correct approach to determine the ingestion cost for 10TB of logs in Datadog is based on the volume of data being ingested over a specified period of time. Specifically, option B accurately reflects this by calculating the total amount of logs ingested over a month.

To break this down, if you are ingesting 10TB per day, this amounts to a total of 300TB of logs in a 30-day month (10TB/day multiplied by 30 days). Since Datadog's pricing model typically charges based on the total volume of logs ingested over the billing cycle, this calculation provides an appropriate estimate for cost. The multiplication by the cost rate of $0.1 per GB further translates this total volume into a monetary value.

The other approaches do not reflect the full scope of costs associated with log ingestion. For instance, simply calculating the ingestion cost without considering the amount over a month would not give a complete picture of the total cost. Therefore, B is the most comprehensive and accurate method for determining the ingestion cost based on the rates that Datadog employs.