DBS-C01 Monitoring and Troubleshooting Practice Question
Which TWO metrics should be monitored to detect a memory leak in an RDS for Oracle instance? (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
Options A and B are correct because FreeableMemory shows the available memory, and SwapUsage indicates when the OS uses swap due to memory pressure, which are both signs of a memory leak. Option C is wrong because DatabaseConnections does not directly indicate a memory leak. Option D is wrong because CPUUtilization may be high but is not specific to a memory leak. Option E is wrong because ReadIOPS relates to I/O, 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
Increasing swap usage indicates the OS is paging memory to disk, sign of memory pressure.
- ✓
FreeableMemory
Why this is correct
Decreasing free memory can indicate a leak.
- ✗
DatabaseConnections
Why it's wrong here
Number of connections does not directly reflect memory usage.
- ✗
CPUUtilization
Why it's wrong here
High CPU may accompany memory leak but is not a direct indicator.
- ✗
ReadIOPS
Why it's wrong here
ReadIOPS measures I/O operations, not memory.
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1 more way this is tested on DBS-C01
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Variation 1. Which TWO metrics should be monitored together to detect a memory leak in an Amazon RDS for Oracle DB instance? (Choose TWO.)
medium- ✓ A.FreeableMemory
- ✓ B.SwapUsage
- C.ReadIOPS
- D.DatabaseConnections
- E.NetworkThroughput
Why A: Options A and B are correct. FreeableMemory shows the amount of available memory, and SwapUsage indicates the amount of swap space used. A memory leak causes increasing memory consumption, leading to swapping when free memory is exhausted. Monitoring both metrics together helps detect this pattern. Option C (ReadIOPS) is an I/O metric, not directly memory-related. Option D (DatabaseConnections) is a connection metric, unrelated to memory leak detection. Option E (NetworkThroughput) is a network metric, also not relevant.
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.