AZ-104 Question 248
Single answerYou manage an Azure Kubernetes Service (AKS) cluster hosting a busy e-commerce application. Customers are reporting slow response times during peak traffic hours, and you suspect the AKS nodes have high CPU utilization. Which Azure Monitor metric should you check first to confirm that the AKS nodes are being heavily utilized?
- A
CPU Usage (Nodes)
- B
Memory Usage (Nodes)
- C
Disk Read Operations
- D
Network Out
Show answer and explanation
Correct answer: A
Explanation
When investigating performance issues suspected to be caused by CPU saturation, checking CPU Usage (Nodes) in Azure Monitor is the best first step. This metric quickly shows if your AKS nodes are operating at high CPU utilization, validating whether CPU constraints are contributing to slow response times.
- A. Correct.
This metric shows how much of the node’s CPU resources are being utilized. A high value here indicates that your AKS nodes are running at or near their CPU limits.
- B. Incorrect.
This metric helps identify memory constraints but does not address CPU-specific usage or bottlenecks.
- C. Incorrect.
This metric is useful for diagnosing storage performance but is unrelated to immediate CPU constraints.
- D. Incorrect.
This metric indicates outbound network throughput, which may be relevant to performance, but does not confirm CPU saturation.