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Question 234 - DOP-C02 discussion

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A company recently migrated its application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster that uses Amazon EC2 instances. The company configured the application to automatically scale based on CPU utilization.

The application produces memory errors when it experiences heavy loads. The application also does not scale out enough to handle the increased load. The company needs to collect and analyze memory metrics for the application over time.

Which combination of steps will meet these requirements? (Select THREE.)

A.
Attach the Cloud WatchAgentServer Pol icy managed IAM policy to the IAM instance profile that the cluster uses.
Answers
A.
Attach the Cloud WatchAgentServer Pol icy managed IAM policy to the IAM instance profile that the cluster uses.
B.
Attach the Cloud WatchAgentServer Pol icy managed IAM policy to a service account role for the cluster.
Answers
B.
Attach the Cloud WatchAgentServer Pol icy managed IAM policy to a service account role for the cluster.
C.
Collect performance metrics by deploying the unified Amazon CloudWatch agent to the existing EC2 instances in the cluster. Add the agent to the AMI for any new EC2 instances that are added to the cluster.
Answers
C.
Collect performance metrics by deploying the unified Amazon CloudWatch agent to the existing EC2 instances in the cluster. Add the agent to the AMI for any new EC2 instances that are added to the cluster.
D.
Collect performance logs by deploying the AWS Distro for OpenTelemetry collector as a DaemonSet.
Answers
D.
Collect performance logs by deploying the AWS Distro for OpenTelemetry collector as a DaemonSet.
E.
Analyze the pod_memory_utilization Amazon CloudWatch metric in the Containerlnsights namespace by using the Service dimension.
Answers
E.
Analyze the pod_memory_utilization Amazon CloudWatch metric in the Containerlnsights namespace by using the Service dimension.
F.
Analyze the node_memory_utilization Amazon CloudWatch metric in the Containerlnsights namespace by using the ClusterName dimension.
Answers
F.
Analyze the node_memory_utilization Amazon CloudWatch metric in the Containerlnsights namespace by using the ClusterName dimension.
Suggested answer: A, C, E

Explanation:

* Step 1: Attaching the CloudWatchAgentServerPolicy to the IAM Role The CloudWatch agent needs permissions to collect and send metrics, including memory metrics, to Amazon CloudWatch. You can attach the CloudWatchAgentServerPolicy managed IAM policy to the IAM instance profile or service account role to grant these permissions. Action: Attach the CloudWatchAgentServerPolicy managed IAM policy to the IAM instance profile that the EKS cluster uses. Why: This ensures the CloudWatch agent has the necessary permissions to collect memory metrics.

This corresponds to Option A: Attach the CloudWatchAgentServerPolicy managed IAM policy to the IAM instance profile that the cluster uses.

* Step 2: Deploying the CloudWatch Agent to EC2 Instances To collect memory metrics from the EC2 instances running in the EKS cluster, the CloudWatch agent needs to be deployed on these instances. The agent collects system-level metrics, including memory usage.

Action: Deploy the unified Amazon CloudWatch agent to the existing EC2 instances in the EKS cluster. Update the Amazon Machine Image (AMI) for future instances to include the CloudWatch agent.

Why: The CloudWatch agent allows you to collect detailed memory metrics from the EC2 instances, which is not enabled by default.

This corresponds to Option C: Collect performance metrics by deploying the unified Amazon CloudWatch agent to the existing EC2 instances in the cluster. Add the agent to the AMI for any new EC2 instances that are added to the cluster.

* Step 3: Analyzing Memory Metrics Using Container Insights After collecting the memory metrics, you can analyze them using the pod_memory_utilization metric in Amazon CloudWatch Container Insights. This metric provides visibility into the memory usage of the containers (pods) in the EKS cluster.

Action: Analyze the pod_memory_utilization CloudWatch metric in the Container Insights namespace by using the Service dimension.

Why: This provides detailed insights into memory usage at the container level, which helps diagnose memory-related issues.

This corresponds to Option E: Analyze the pod_memory_utilization Amazon CloudWatch metric in the Container Insights namespace by using the Service dimension.

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asked 16/09/2024
Ahmed Ebrahim
44 questions
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