A company runs a critical application on a fleet of Amazon EC2 instances. A SysOps Adminis… — AWS Certified SysOps Administrator - Associate

A company runs a critical application on a fleet of Amazon EC2 instances. A SysOps Administrator is configuring a CloudWatch alarm to monitor the aggregate CPU utilization of the fleet. The alarm must transition to the ALARM state and send an Amazon SNS notification if the average CPU utilization exceeds $85\%$ for $2$ consecutive evaluation periods of $1$ minute. The EC2 instances are currently configured with standard monitoring.

Which combination of actions must the SysOps Administrator take to meet these requirements? (Select TWO.)

Enable detailed monitoring on the EC2 instances in the fleet.Cevap
Configure the CloudWatch alarm with a metric period of $1$ minute and set both the Evaluation Periods and Datapoints to Alarm to $2$ .Cevap
C
Keep standard monitoring enabled and configure the CloudWatch alarm with a metric period of $1$ minute, relying on CloudWatch to interpolate the $5$ -minute metrics.
D
Create an Amazon EventBridge rule that directly monitors the raw EC2 CPUUtilization metric stream at $1$ -minute intervals to trigger the SNS notification.
E
Increase the Auto Scaling group cooldown period to $120$ seconds to prevent CloudWatch from evaluating metrics during instance scaling activities.

Cevap

To achieve this configuration, detailed monitoring must be enabled on the EC2 instances, and the CloudWatch alarm must be configured with a metric period of

1

minute while setting both the Evaluation Periods and Datapoints to Alarm to

2

To evaluate a metric at

1

-minute intervals, the EC2 instances must be configured with detailed monitoring, as standard monitoring only reports metrics at

5

-minute intervals. Additionally, the CloudWatch alarm must be configured with a period of

1

minute, and both the Evaluation Periods and Datapoints to Alarm must be set to

2

to ensure that the alarm only triggers when the CPU utilization threshold of

85\%

is exceeded for

2

consecutive

1

-minute periods.

Adım Adım Çözüm

Ensure the underlying metrics are published at the required frequency.

Detailed monitoring is enabled on the fleet's EC2 instances, switching the CPU utilization reporting interval from

5

minutes to

1

minute.

Standard monitoring does not provide the

1

-minute data points required for the alarm's evaluation period.

Configure the threshold evaluation window on the CloudWatch alarm.

The alarm is configured with a period of

1

minute, Evaluation Periods of

2

, and Datapoints to Alarm (M out of N) of

2

This configuration requires

2

out of

2

consecutive data points to exceed the

85\%

threshold before triggering the alarm.

Anahtar Kavram

CloudWatch detailed monitoring configuration and multi-period alarm evaluation.

Soru

Cevap

Adım Adım Çözüm

Anahtar Kavram

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Konular

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