Quick Answer
The answer is Amazon RDS Enhanced Monitoring, as it provides OS-level metrics that allow you to drill down into per-process disk I/O and identify RDS storage consumption per table. Unlike standard CloudWatch metrics, Enhanced Monitoring surfaces real-time data such as write latency and disk queue depth at the database engine level, enabling you to pinpoint which table or process is driving rapid storage growth. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your ability to distinguish between monitoring services: CloudWatch gives aggregate metrics, while Enhanced Monitoring offers the granular, process-level visibility needed for root-cause analysis. A common trap is choosing Performance Insights, which focuses on query performance and load, not storage consumption per table. Memory tip: Enhanced Monitoring is your “OS-level magnifying glass” for storage—think “Enhanced = Enlarged view of the disk.”
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 is troubleshooting an issue where an Amazon RDS instance's storage space is being consumed rapidly. The administrator wants to identify the specific database or table causing the storage increase. Which AWS service or feature should the administrator use to gather this information?
Amazon CloudWatch Logs
Why wrong: CloudWatch Logs collects logs, not database storage metrics.
AWS Config
Why wrong: AWS Config tracks resource configuration changes, not storage consumption.
Amazon RDS Enhanced Monitoring
Enhanced Monitoring provides OS-level metrics including disk space used by databases.
AWS CloudTrail
Why wrong: CloudTrail records API calls, not database storage usage.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon RDS Enhanced Monitoring
Amazon RDS Enhanced Monitoring (option C) provides real-time OS-level metrics for an RDS instance, including per-process CPU, memory, and disk I/O usage. This allows the administrator to drill down into specific database processes or tables to identify which one is consuming storage space rapidly, as it surfaces metrics like write latency and disk queue depth at the database engine level.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon CloudWatch Logs
Why it's wrong here
CloudWatch Logs collects logs, not database storage metrics.
AWS Config
Why it's wrong here
AWS Config tracks resource configuration changes, not storage consumption.
Amazon RDS Enhanced Monitoring
Why this is correct
Enhanced Monitoring provides OS-level metrics including disk space used by databases.
Related concept
Read the scenario before looking for a memorised answer.
AWS CloudTrail
Why it's wrong here
CloudTrail records API calls, not database storage usage.
Common exam traps
The trap here is that candidates often confuse Amazon CloudWatch Logs (which stores logs) with Enhanced Monitoring (which provides OS-level metrics), or they mistakenly think AWS Config or CloudTrail can diagnose storage consumption, when in fact only Enhanced Monitoring offers the per-process granularity needed to identify the offending database or table.
Detailed technical explanation
RDS Enhanced Monitoring uses an agent installed on the RDS host to collect metrics from the operating system, such as /proc/diskstats and /proc/meminfo, and publishes them to CloudWatch Logs every second (configurable). For MySQL/MariaDB, it can expose per-table I/O metrics via the performance_schema, while for PostgreSQL, it leverages pg_stat_user_tables to show table-level disk usage. In a real-world scenario, a sudden storage spike from a large DELETE or INSERT operation on a specific table would be visible as a burst in write IOPS for that process in Enhanced Monitoring, enabling targeted remediation.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Monitoring, Logging, and Remediation — study guide chapter
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FAQ
Monitoring, Logging, and Remediation — This question tests Monitoring, Logging, and Remediation — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon RDS Enhanced Monitoring — Amazon RDS Enhanced Monitoring (option C) provides real-time OS-level metrics for an RDS instance, including per-process CPU, memory, and disk I/O usage. This allows the administrator to drill down into specific database processes or tables to identify which one is consuming storage space rapidly, as it surfaces metrics like write latency and disk queue depth at the database engine level.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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