A user has created an Auto Scaling group using CLI. The user wants to enable CloudWatch detailed
monitoring for that group. How can the user configure this?
A.
When the user sets an alarm on the Auto Scaling group, it automatically enables detail monitoring
B.
By default detailed monitoring is enabled for Auto Scaling
C.
Auto Scaling does not support detailed monitoring
D.
Enable detail monitoring from the AWS console
Explanation:
CloudWatch is used to monitor AWS as well as the custom services. It provides either basic or detailed
monitoring for the supported AWS products. In basic monitoring, a service sends data points to CloudWatch
every five minutes, while in detailed monitoring a service sends data points to CloudWatch every minute. To
enable detailed instance monitoring for a new Auto Scaling group, the user does not need to take any extra
steps. When the user creates an Auto Scaling launch config as the first step for creating an Auto Scaling group,
each launch configuration contains a flag named
InstanceMonitoring.Enabled. The default value of this flag is true. Thus, the user does not need to set this flag
if he wants detailed monitoring.
B
http://docs.aws.amazon.com/cli/latest/reference/autoscaling/create-launch-configuration.html
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I think answer is D
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B
through CLI
–instance-monitoring (structure)
Enables detailed monitoring if it is disabled. Detailed monitoring is enabled by default.
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Indicates whether detailed instance monitoring is enabled for the Auto Scaling group. By default, this property is set to true (enabled).
When detailed monitoring is enabled, Amazon CloudWatch (CloudWatch) generates metrics every minute and your account is charged a fee. When you disable detailed monitoring, CloudWatch generates metrics every 5 minutes. For more information, see Monitor Your Auto Scaling Instances in the Auto Scaling Developer Guide
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-as-launchconfig.html#cfn-as-launchconfig-instancemonitoring
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B
Detailed monitored enabled by default when created through the CLI.
It is NOT enabled by default when created via the console.
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Answer is D folks
http://docs.aws.amazon.com/autoscaling/latest/userguide/as-instance-monitoring.html
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D
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Enable Auto Scaling Instance Metrics
You can enable basic or detailed monitoring for the instances in your Auto Scaling group when you create a launch configuration. By default, basic monitoring is enabled when you create the launch configuration using the AWS Management Console and detailed monitoring is enabled when you create the launch configuration using the AWS CLI or an API.
http://docs.aws.amazon.com/autoscaling/latest/userguide/as-instance-monitoring.html
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