Suggested Answer:B🗳️
AWS CloudWatch supports the custom metrics. The user can always capture the custom data and upload the data to CloudWatch using CLI or APIs. The user has always to include the namespace as a part of the request. However, the other parameters are optional. If the user has uploaded data using CLI, he can view it as a graph inside the console. The data will take around 2 minutes to upload but can be viewed only after around 15 minutes.
B and C are true.
https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/publishingMetrics.html
However tested out if i only put namespace as a dimension, and i got this:
[cloudshell-user@ip-10-1-71-233 ~]$ aws cloudwatch put-metric-data --namespace MyService
Parameter validation failed:
Missing required parameter in input: "MetricData"
I go witch (C).
This is a very strange question. It says Cloudwatch is being used to publish custom metrics, so I assume that everything is already configured and the metric publishing is already happening. It asks to choose an answer that will help the user comprehend the functionality.
(A) is incorrect because such a tool like Cloudwatch Import does not exist. (B) is also incorrect, because the 15 minute thing only occur during the metric creation. In this case, the metric is already created. (C) would be valid answer, although there is not a specific parameter for timezone, you can inform it while informing the date. (D) also looks correct.
So, the correct answer is between (C) and (D). Which one helps more in comprehending the functionality better? I think (C) is more specific, it is a function that is direct associated with Cloudwatch Metrics. Letter D could be other services like S3. So, I choose (C) for this one.
C.
To better comprehend the functionality of the Metrics we need to supply in namespace, timezone, and metric name.
B is correct but not the most appropriate.
B
About a couple of minutes to publish the data but the data can be viewed only after 15 minus.
When uploading namespace is the only mandatory parameter, rest are optional.
Is this described in the manual? Because all I could find - "When you create a metric, it can take up to 2 minutes before you can retrieve statistics for the new metric using the get-metric-statistics command. However, it can take up to 15 minutes before the new metric appears in the list of metrics retrieved using the list-metrics command." but here is talking about creating a new metric and not putting data into existing, like in the question
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