PAS-C01 Operations and Maintenance Practice Question
An AWS administrator needs to monitor the CPU utilization of an EC2 instance running SAP NetWeaver. The instance type is r5.2xlarge. Which CloudWatch metric should the administrator use to track the CPU usage of the instance?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CPUUtilization
(CPUUtilization). CPUUtilization is a standard CloudWatch metric for EC2 instances that measures the percentage of allocated EC2 compute units that are currently in use. It is suitable for monitoring CPU usage of an EC2 instance running SAP NetWeaver. Option A (MemoryUtilization) is incorrect because memory utilization is not a default CloudWatch metric; it requires a custom agent. Option C (NetworkIn) measures network traffic, not CPU. Option D (DiskReadOps) measures disk I/O operations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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MemoryUtilization
Why it's wrong here
MemoryUtilization is not a default CloudWatch metric; it requires a custom agent to be installed on the EC2 instance.
- ✓
CPUUtilization
Why this is correct
CPUUtilization is the standard CloudWatch metric that tracks the CPU usage of an EC2 instance, making it the correct choice for monitoring CPU utilization of an r5.2xlarge instance running SAP NetWeaver.
- ✗
NetworkIn
Why it's wrong here
NetworkIn measures the number of bytes received on all network interfaces by the instance; it is not related to CPU usage.
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DiskReadOps
Why it's wrong here
DiskReadOps measures the number of completed read operations from all instance store volumes available to the instance; it does not track CPU usage.
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