The answer is to remove the PCIe passthrough device from the VM before initiating the vMotion. This is required because vMotion with PCIe passthrough devices is not supported in vSphere 7, as the NVMe controller is physically tied to the specific host’s hardware and cannot be migrated while preserving memory state. The vMotion process relies on transferring the VM’s memory and CPU state, but a passthrough device maintains direct memory access to the original host’s PCIe bus, making live migration impossible without powering off the VM. On the VMware Certified Professional Data Center Virtualization VCP-DCV exam, this scenario tests your understanding of vMotion compatibility constraints, often appearing as a trap where candidates assume advanced features like vMotion can handle any device. A common memory tip is “Passthrough = Pinned to the host; vMotion requires detachment or power-off.”
VCP-DCV vSphere Performance and Scaling Practice Question
This VCP-DCV practice question tests your understanding of vsphere performance and scaling. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
An administrator has a vSphere 7 cluster with vMotion enabled. They need to perform a vMotion of a VM from host1 to host2 while preserving the VM's memory state. The VM has a PCIe passthrough device assigned (NVMe controller). What should the administrator do before initiating the vMotion?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Remove the PCIe passthrough device from the VM
vMotion does not support VMs with PCIe passthrough devices because the device is tied to the physical host. The device must be removed or the VM must be powered off.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use shared storage for the VM
Why it's wrong here
Shared storage is required for vMotion but does not solve the passthrough issue.
✓
Remove the PCIe passthrough device from the VM
Why this is correct
VMs with passthrough devices cannot be vMotioned; the device must be removed first.
Related concept
Static NAT maps one inside address to one outside address.
✗
Enable Enhanced vMotion Compatibility (EVC) on the cluster
Why it's wrong here
EVC helps with CPU compatibility but does not address passthrough devices.
✗
Upgrade to vSphere 8
Why it's wrong here
Even in vSphere 8, PCIe passthrough vMotion is not supported for all devices; removal is still required.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related VCP-DCV NAT questions on configuration and troubleshooting.
vSphere Performance and Scaling — This question tests vSphere Performance and Scaling — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Remove the PCIe passthrough device from the VM — vMotion does not support VMs with PCIe passthrough devices because the device is tied to the physical host. The device must be removed or the VM must be powered off.
What should I do if I get this VCP-DCV question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related VCP-DCV NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This VCP-DCV practice question is part of Courseiva's free VMware 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 VCP-DCV exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.