The correct answer is to install and configure the Amazon CloudWatch agent on the Windows EC2 instance. This is required because default CloudWatch monitoring only captures hypervisor-level metrics like CPU and network I/O, not in-guest data such as memory utilization. The CloudWatch agent uses Windows Performance Monitor counters to collect custom metrics like Memory % Committed Bytes In Use and sends them to CloudWatch. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this concept frequently appears in scenario-based questions where a candidate must distinguish between the legacy SSM agent and the CloudWatch agent, or between basic and detailed monitoring. A common trap is assuming that enabling detailed monitoring in the EC2 console will surface memory metrics—it will not, as that only increases the frequency of hypervisor-level data. Remember the key distinction: hypervisor metrics are free and automatic, but guest OS metrics require the agent. For a quick memory aid, think “CloudWatch Agent for Guest Metrics” or simply “CAGM” to recall that the agent is the mandatory bridge for in-OS memory data.
SOA-C02 Monitoring, Logging, and Remediation Practice Question
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A SysOps administrator needs to monitor the memory utilization of an EC2 instance running Windows Server. Which steps are required to collect memory metrics?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Install and configure the Amazon CloudWatch agent on the instance.
Amazon CloudWatch does not collect memory metrics from EC2 instances by default; it only captures hypervisor-level metrics such as CPU, network, and disk I/O. To monitor in-guest memory utilization on a Windows Server instance, you must install and configure the Amazon CloudWatch agent, which sends custom metrics (e.g., Memory % Committed Bytes In Use) to CloudWatch. The agent uses the Windows Performance Monitor (PerfMon) counters to gather this data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Install and configure the Amazon CloudWatch agent on the instance.
Why this is correct
The CloudWatch agent can collect memory and disk metrics.
Related concept
Read the scenario before looking for a memorised answer.
✗
Install the AWS Systems Manager Agent (SSM Agent) and use Run Command.
Why it's wrong here
SSM Agent can run scripts but does not directly send memory metrics to CloudWatch.
✗
Enable detailed monitoring on the EC2 instance.
Why it's wrong here
Detailed monitoring provides more frequent CPU metrics, not memory.
✗
Use the AWS Management Console to enable memory monitoring.
Why it's wrong here
There is no option to enable memory monitoring in the console.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume memory metrics are automatically available or can be enabled via a simple console toggle, when in fact they require the CloudWatch agent to be installed and configured on the instance.
Detailed technical explanation
How to think about this question
The CloudWatch agent collects memory metrics by reading from the Windows Performance Counters (e.g., \Memory\% Committed Bytes In Use) and publishes them as custom metrics under the CWAgent namespace. This agent can also collect logs and other system metrics, and it supports both EC2 and on-premises servers. A common real-world scenario is setting a CloudWatch alarm on memory utilization to trigger an Auto Scaling policy or a Systems Manager automation to remediate high memory usage.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Monitoring, Logging, and Remediation — This question tests Monitoring, Logging, and Remediation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Install and configure the Amazon CloudWatch agent on the instance. — Amazon CloudWatch does not collect memory metrics from EC2 instances by default; it only captures hypervisor-level metrics such as CPU, network, and disk I/O. To monitor in-guest memory utilization on a Windows Server instance, you must install and configure the Amazon CloudWatch agent, which sends custom metrics (e.g., Memory % Committed Bytes In Use) to CloudWatch. The agent uses the Windows Performance Monitor (PerfMon) counters to gather this data.
What should I do if I get this SOA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This SOA-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SOA-C02 exam.
Question Discussion
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