Topic 1 Question 150
A company is migrating an application from on-premises servers to Amazon EC2 instances. As part of the migration design requirements, a solutions architect must implement infrastructure metric alarms. The company does not need to take action if CPU utilization increases to more than 50% for a short burst of time. However, if the CPU utilization increases to more than 50% and read IOPS on the disk are high at the same time, the company needs to act as soon as possible. The solutions architect also must reduce false alarms. What should the solutions architect do to meet these requirements?
Create Amazon CloudWatch composite alarms where possible.
Create Amazon CloudWatch dashboards to visualize the metrics and react to issues quickly.
Create Amazon CloudWatch Synthetics canaries to monitor the application and raise an alarm.
Create single Amazon CloudWatch metric alarms with multiple metric thresholds where possible.
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- 正解だと思う選択肢: A
Composite alarms determine their states by monitoring the states of other alarms. You can use composite alarms to reduce alarm noise. For example, you can create a composite alarm where the underlying metric alarms go into ALARM when they meet specific conditions. You then can set up your composite alarm to go into ALARM and send you notifications when the underlying metric alarms go into ALARM by configuring the underlying metric alarms never to take actions. Currently, composite alarms can take the following actions: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Create_Composite_Alarm.html
👍 20123jhl02022/10/20 The AWS::CloudWatch::CompositeAlarm type creates or updates a composite alarm. When you create a composite alarm, you specify a rule expression for the alarm that takes into account the alarm states of other alarms that you have created. The composite alarm goes into ALARM state only if all conditions of the rule are met.
The alarms specified in a composite alarm's rule expression can include metric alarms and other composite alarms.Using composite alarms can reduce alarm noise.
👍 3Qjb8m9h2022/12/12- 正解だと思う選択肢: A
Option A, creating Amazon CloudWatch composite alarms, is correct because it allows the solutions architect to create an alarm that is triggered only when both CPU utilization is above 50% and read IOPS on the disk are high at the same time. This meets the requirement to act as soon as possible if both conditions are met, while also reducing the number of false alarms by ensuring that the alarm is triggered only when both conditions are met.
👍 2Buruguduystunstugudunstuy2022/12/21
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