DBS-C01 Monitoring and Troubleshooting Practice Question
A database administrator notices that an Amazon RDS for MySQL DB instance is using more storage than expected. Which metric should be monitored to troubleshoot storage usage?
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
✓
FreeStorageSpace
FreeStorageSpace directly indicates the available storage remaining on the DB instance, which is key to troubleshooting storage usage. Option B is incorrect because DatabaseConnections measures the number of client connections, not storage. Option C is incorrect because ReadIOPS measures input/output operations per second, not storage capacity. Option D is incorrect because NetworkThroughput measures data transfer rates, not storage.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
FreeStorageSpace
Why this is correct
FreeStorageSpace shows remaining storage, helping identify usage trends.
- ✗
DatabaseConnections
Why it's wrong here
DatabaseConnections does not reflect storage usage.
- ✗
ReadIOPS
Why it's wrong here
ReadIOPS indicates I/O performance, not storage consumption.
- ✗
NetworkThroughput
Why it's wrong here
NetworkThroughput measures data transfer, not storage.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-C01 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 DBS-C01 exam.