The correct first action is to perform a live migration of the VM to a host with more memory. This is because live migration, such as VMware vMotion or Hyper-V Live Migration, transfers the running virtual machine’s memory and state to a new physical host with zero downtime, directly alleviating memory pressure without interrupting the production web application. On the CompTIA Cloud+ CV0-004 exam, this scenario tests your understanding of high-availability techniques and the distinction between reactive troubleshooting and proactive resource management. A common trap is choosing to increase the VM’s memory allocation or add a page file, but those options either require a reboot or don’t resolve the underlying host resource exhaustion. Remember the key principle: when a host lacks physical memory, move the VM, don’t just resize it. A useful memory tip is “Migrate, not allocate” — live migration keeps the service running while fixing the root cause.
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 administrator notices that a virtual machine is running out of memory and causing performance issues. The VM is part of a production web application. Which of the following actions should the administrator take FIRST to resolve the issue without impacting availability?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Perform a live migration of the VM to a host with more memory.
Option D is correct because live migration (e.g., VMware vMotion or Hyper-V Live Migration) allows the administrator to move the running VM to a host with more physical memory without any downtime, directly resolving the memory pressure while maintaining production availability. This is the only option that addresses the root cause (insufficient host memory) without stopping the VM or risking data loss.
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.
✗
Stop the VM and increase its memory allocation, then restart it.
Why it's wrong here
Stopping the VM causes downtime for the production application.
✗
Add a swap file to the VM's virtual disk.
Why it's wrong here
Adding a swap file may help but is not the first action and does not directly resolve memory shortage.
✗
Take a snapshot of the VM and then increase memory allocation.
Why it's wrong here
Snapshots are not necessary for memory changes and stopping the VM may still be required.
✓
Perform a live migration of the VM to a host with more memory.
Why this is correct
Live migration moves the VM without downtime, allowing access to more resources.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that increasing memory requires a VM restart, but the trap here is that candidates overlook live migration as a zero-downtime solution and instead choose options that either cause downtime or degrade performance.
Detailed technical explanation
How to think about this question
Live migration works by copying the VM's memory pages iteratively to the destination host while the VM continues to run, then briefly pausing to transfer the final dirty pages and CPU state, resulting in sub-second downtime. In production environments, this is often combined with memory overcommitment awareness and NUMA topology to ensure performance after migration. Real-world scenarios include balancing memory load across a cluster during peak traffic without triggering application timeouts.
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: Perform a live migration of the VM to a host with more memory. — Option D is correct because live migration (e.g., VMware vMotion or Hyper-V Live Migration) allows the administrator to move the running VM to a host with more physical memory without any downtime, directly resolving the memory pressure while maintaining production availability. This is the only option that addresses the root cause (insufficient host memory) without stopping the VM or risking data loss.
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: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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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