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CV0-004 Practice Question: Which TWO metrics should be monitored to…
Which TWO metrics should be monitored to determine if a cloud database is experiencing a memory bottleneck?
⚠ Common exam trap
CompTIA often tests the distinction between memory-specific metrics (swap usage, page faults) and storage-related metrics (disk queue length, latency), trapping candidates who confuse high disk activity with memory pressure.
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
✓
Swap usage
Swap usage (B) is a direct indicator of memory pressure; when the operating system moves memory pages to disk, it signals that the database cannot fit its working set in RAM, causing severe performance degradation. Page faults per second (E) measures how often the database must retrieve memory pages from disk; a sustained high rate indicates the buffer pool is too small for the workload, confirming a memory bottleneck.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Network bytes sent
Why it's wrong here
Network metric, not memory.
- ✓
Swap usage
Why this is correct
High swap usage indicates memory pressure.
- ✗
Average disk queue length
Why it's wrong here
Disk queue length relates to storage I/O.
- ✗
Disk latency
Why it's wrong here
Disk latency relates to storage performance.
- ✓
Page faults per second
Why this is correct
High page faults indicate insufficient memory.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.