DBS-C01 Monitoring and Troubleshooting Practice Question
Which TWO metrics should be monitored to detect an Amazon RDS for MySQL instance that is experiencing memory pressure? (Choose 2.)
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
✓
SwapUsage
A and D are correct. SwapUsage directly indicates memory pressure when it exceeds 0, as the operating system swaps memory to disk. FreeableMemory shows the amount of available memory, so a low value suggests memory pressure. B (DatabaseConnections) is incorrect because it is an indirect indicator that can affect memory but is not a direct memory metric. C (ReadIOPS) is disk I/O, not memory. E (CPUUtilization) is CPU usage, not memory.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SwapUsage
Why this is correct
High swap usage indicates memory pressure.
- ✗
DatabaseConnections
Why it's wrong here
Connections consume memory but are not direct metric.
- ✗
ReadIOPS
Why it's wrong here
I/O metric.
- ✓
FreeableMemory
Why this is correct
Low freeable memory indicates pressure.
- ✗
CPUUtilization
Why it's wrong here
CPU metric.
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Same concept, more angles
1 more way this is tested on DBS-C01
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. An Amazon RDS for Oracle instance is experiencing high swap usage. Which metric should be monitored to determine if the instance is memory-constrained?
easy- A.CPUUtilization
- ✓ B.SwapUsage
- C.WriteIOPS
- D.FreeableMemory
Why B: SwapUsage indicates that the instance is using swap space, which is a sign of memory pressure. CPUUtilization is for CPU, not memory. FreeableMemory shows available memory, but swap usage directly indicates memory constraint.
JA
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.