Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A SysOps administrator needs to monitor Amazon EC2 instances for disk space usage. Disk space metrics are not available by default in Amazon CloudWatch. The administrator wants to collect disk space metrics from all EC2 instances across multiple AWS accounts and aggregate them in a single CloudWatch dashboard. Which combination of steps should the administrator take?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Install the CloudWatch agent on each instance using SSM Run Command, configure the agent to collect disk metrics, and use CloudWatch cross-account observability to aggregate metrics from multiple accounts.
The CloudWatch agent collects custom metrics (e.g., disk space) and sends them to CloudWatch. SSM Run Command automates the installation. Cross-account observability allows a central monitoring account to view metrics from all member accounts.
B
Distractor review
Enable detailed monitoring on the EC2 instances, create a custom metric in CloudWatch for disk space, and use CloudWatch Logs to forward logs to a central account.
Detailed monitoring only increases the frequency of standard EC2 metrics (CPU, network). It does not provide OS-level disk space metrics. Custom metrics must be published by the CloudWatch agent or your own code.
C
Distractor review
Use AWS Config to track disk space and send metrics to CloudWatch.
AWS Config tracks resource configuration changes, not OS-level metrics like disk space. It cannot collect disk utilization data.
D
Distractor review
Use AWS Trusted Advisor to monitor disk space and send alerts via SNS.
AWS Trusted Advisor provides best practice checks but does not collect instance-level disk space. It checks for idle instances, underutilized EBS volumes, etc., but not disk usage.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Related practice questions
Related SOA-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A company uses Amazon CloudFront to deliver content to a global audience. The origin is an Application Load Balancer in us-east-1. The SysOps administrator wants to reduce costs by minimizing the number of requests that reach the origin server. Which action should the administrator take?
Question 2
A company runs a batch processing application on Amazon EC2 that runs for 2 hours every night. The workload can tolerate interruptions. Which EC2 purchasing option provides the lowest cost for this use case?
Question 3
A SysOps administrator needs to monitor the CPU utilization of an Amazon RDS DB instance and receive an alarm when CPU utilization exceeds 80% for 5 consecutive minutes. Which AWS service should be used to create this alarm?
Question 4
A company runs a critical web application on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB). The application uses session stickiness (sticky sessions) to maintain user sessions. The SysOps administrator notices that when instances are replaced during a scale-in or failure event, users lose their session data. The administrator needs to preserve session data across instance failures without losing stickiness benefits. What should the administrator do?
Question 5
A company runs a production web application on a single Amazon EC2 instance. The application experiences a predictable and steady workload 24/7. The SysOps administrator wants to minimize compute costs for this instance while ensuring it remains available during the expected workload. Which EC2 purchasing option should the administrator use?
Question 6
A company has a VPC with public and private subnets. The private subnets host application servers that need to make outbound HTTPS connections to the internet. The SysOps administrator must implement a solution that provides outbound internet connectivity while preventing inbound connections from the internet. Additionally, the solution must allow the company to control which domains the application servers can access. Which solution should the administrator implement?
FAQ
Questions learners often ask
What does this SOA-C02 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Install the CloudWatch agent on each instance using SSM Run Command, configure the agent to collect disk metrics, and use CloudWatch cross-account observability to aggregate metrics from multiple accounts. — To collect custom OS-level metrics like disk space, the CloudWatch agent must be installed on each instance. AWS Systems Manager Run Command can deploy the agent at scale. CloudWatch cross-account observability allows you to aggregate metrics from multiple accounts into a single monitoring account for centralized dashboards. Detailed monitoring does not include OS metrics, and AWS Config/Trusted Advisor do not collect disk space.
What should I do if I get this SOA-C02 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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