The answer is to review the VM’s performance metrics and application logs. This is correct because the initial troubleshooting steps for high CPU cloud VM usage must follow the “identify before act” principle—without diagnostic data, any change risks masking the root cause or causing further instability. By examining metrics like CPU utilization, memory, and disk I/O alongside application logs, you can determine whether the spike stems from a legitimate workload surge, a memory leak, or a misconfiguration. On the CompTIA Cloud+ CV0-004 exam, this scenario tests your understanding of systematic cloud troubleshooting methodology; a common trap is jumping to resizing the VM or restarting services without first gathering evidence. Remember the mnemonic “Logs and Metrics First” (LMF)—always look before you leap.
CV0-004 Operations and Support Practice Question
This CV0-004 practice question tests your understanding of operations and support. 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 cloud engineer notices that a virtual machine (VM) in a public cloud environment is consistently running at 90% CPU during business hours. The VM hosts a customer-facing web application. Which of the following is the BEST initial troubleshooting step?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Review the VM's performance metrics and application logs.
Option B is correct because the initial step in troubleshooting high CPU usage is to gather diagnostic data. Reviewing the VM's performance metrics (e.g., CPU utilization, memory, disk I/O) and application logs helps identify whether the issue is caused by a legitimate workload spike, a memory leak, or a misconfiguration. This aligns with the 'identify before act' principle in cloud operations, ensuring the engineer understands the root cause before making changes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Migrate the VM to a different availability zone.
Why it's wrong here
Migrating zones does not address CPU usage and is a more drastic measure.
✓
Review the VM's performance metrics and application logs.
Why this is correct
Reviewing metrics and logs is the standard first step in troubleshooting.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Reboot the VM to reset resource usage.
Why it's wrong here
Rebooting causes downtime and does not address the root cause.
✗
Scale up the VM to a larger instance size.
Why it's wrong here
Scaling up without investigation may increase costs unnecessarily.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often jump to a 'fix' like scaling up or rebooting, but Cisco tests the foundational troubleshooting methodology of 'gather data first' to avoid unnecessary changes and ensure the solution is targeted and cost-effective.
Detailed technical explanation
How to think about this question
Under the hood, CPU usage at 90% during business hours could indicate a scaling event, a memory leak causing excessive garbage collection, or a poorly optimized database query. Tools like AWS CloudWatch, Azure Monitor, or Google Cloud Operations Suite provide metrics at 1-minute granularity, while application logs (e.g., via syslog or structured logging) can reveal specific error codes or slow transactions. In a real-world scenario, a web app might suffer from a sudden traffic spike due to a marketing campaign, and reviewing logs would show HTTP 500 errors or increased response times, guiding the engineer to adjust auto-scaling policies or optimize code rather than blindly resizing the VM.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CV0-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Operations and Support — This question tests Operations and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Review the VM's performance metrics and application logs. — Option B is correct because the initial step in troubleshooting high CPU usage is to gather diagnostic data. Reviewing the VM's performance metrics (e.g., CPU utilization, memory, disk I/O) and application logs helps identify whether the issue is caused by a legitimate workload spike, a memory leak, or a misconfiguration. This aligns with the 'identify before act' principle in cloud operations, ensuring the engineer understands the root cause before making changes.
What should I do if I get this CV0-004 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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