AWS Certified SysOps Administrator – Associate (legacy) — Question 466

A user is sending custom data metrics to CloudWatch. What is the allowed time stamp granularity for each data point published for the custom metric?

Answer options

• A. 1 nanosecond
• B. 1 millisecond
• C. 1 minute
• D. 1 second

Correct answer: B

Explanation

Amazon CloudWatch allows custom metric data points to be published with a timestamp granularity down to 1 millisecond. While standard metrics are aggregated at 1-minute intervals and high-resolution metrics can be retrieved at 1-second intervals, the API accepts timestamp precision up to the millisecond level. Nanosecond precision is not supported by CloudWatch.