What is the minimum time Interval for the data that Amazon CloudWatch receives and aggregates?
A.
One second
B.
Five seconds
C.
One minute
D.
Three minutes
E.
Five minutes
Explanation:
Many metrics are received and aggregated at 1-minute intervals. Some are at 3-minute or 5-minute intervals.
C
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C is correct
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C
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A
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A
https://aws.amazon.com/about-aws/whats-new/2017/07/amazon-cloudwatch-introduces-high-resolution-custom-metrics-and-alarms/
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it seems be updated. A is correct.
“You can adjust how the data is aggregated by varying the length of the period. A period can be as short as one second or as long as one day (86,400 seconds). The default value is 60 seconds. “
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A is for high resolution
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A custom metric can be one of the following:
Standard resolution, with data having one-minute granularity
High resolution, with data at a granularity of one second
By default, metrics are stored at 1-minute resolution in CloudWatch. You can define a metric as high-resolution by setting the StorageResolution parameter to 1 in the PutMetricData API request. If you do not set the optional StorageResolution parameter, then CloudWatch will default to storing the metrics at 1-minute resolution.
When you publish a high-resolution metric, CloudWatch stores it with a resolution of 1 second, and you can read and retrieve it with a period of 1 second, 5 seconds, 10 seconds, 30 seconds, or any multiple of 60 seconds.
Custom metrics follow the same retention schedule listed above.
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Answer is C
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A
Default is 1 minute; minimum is 1 second.
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