- A
Create three separate distributed port groups, each with the appropriate VLAN ID, and assign each VM kernel adapter or VM to the correct port group.
Correct: Separate port groups with specific VLAN IDs for each traffic type (VLAN 100 production, VLAN 200 management, VLAN 300 vMotion) isolate traffic and follow best practices.
- B
Create one distributed port group with VLAN 100, and use VLAN tagging on the VMs for management and vMotion.
Why wrong: Incorrect: VLAN tagging on VMs is used for guest OS-level tagging, not for VMkernel adapters. Management and vMotion kernel adapters require dedicated port groups.
- C
Use standard switches for management and vMotion to avoid complexity.
Why wrong: Incorrect: Using standard switches instead of the distributed switch adds complexity and defeats the benefits of centralized management and consistent configuration.
- D
Create one distributed port group with VLAN trunk (4095) and use port-based VLAN filtering on the VMs.
Why wrong: Incorrect: VLAN trunk (4095) passes all VLANs to the guest, but VMkernel adapters should not rely on guest-level tagging; they need explicit VLAN assignment.
- E
Create two port groups: one for production (VLAN 100) and one for management+vMotion (VLAN 200) because vMotion can share VLAN with management.
Why wrong: Incorrect: Management and vMotion should be on separate VLANs to avoid resource contention and security risks; sharing a VLAN is not a recommended best practice.
VLAN Segmentation Best Practices on vSphere Distributed Switch
This VCP-DCV practice question tests your understanding of configure and manage vsphere networking. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: distributed Port Group. 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 is configuring a distributed switch for a cluster of ESXi hosts. The requirements are: VLAN 100 for production, VLAN 200 for management, and a separate VLAN 300 for vMotion. The management network should be isolated from production traffic. What is the best practice for configuring these networks on the distributed switch?
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 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
Create three separate distributed port groups, each with the appropriate VLAN ID, and assign each VM kernel adapter or VM to the correct port group.
Option A is correct because best practice for segmenting different traffic types (production, management, vMotion) on a distributed switch is to create separate distributed port groups, each assigned a unique VLAN ID. This isolates traffic at Layer 2, enhances security, and prevents interference. VMkernel adapters for management and vMotion, as well as VMs for production, are then attached to their respective port groups. Option B is incorrect because VLAN tagging on VMs is not suitable for VMkernel adapters, which require dedicated port groups. Option C is incorrect because using standard switches defeats the purpose of a distributed switch and adds management complexity. Option D is incorrect because VLAN trunk (4095) is used for guest-level tagging, not for isolating kernel traffic. Option E is incorrect because management and vMotion should be on separate VLANs to avoid resource contention and security risks.
Key principle: Distributed Port Group
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create three separate distributed port groups, each with the appropriate VLAN ID, and assign each VM kernel adapter or VM to the correct port group.
Why this is correct
Correct: Separate port groups with specific VLAN IDs for each traffic type (VLAN 100 production, VLAN 200 management, VLAN 300 vMotion) isolate traffic and follow best practices.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Distributed Port Group
- ✗
Create one distributed port group with VLAN 100, and use VLAN tagging on the VMs for management and vMotion.
Why it's wrong here
Incorrect: VLAN tagging on VMs is used for guest OS-level tagging, not for VMkernel adapters. Management and vMotion kernel adapters require dedicated port groups.
- ✗
Use standard switches for management and vMotion to avoid complexity.
Why it's wrong here
Incorrect: Using standard switches instead of the distributed switch adds complexity and defeats the benefits of centralized management and consistent configuration.
- ✗
Create one distributed port group with VLAN trunk (4095) and use port-based VLAN filtering on the VMs.
- ✗
Create two port groups: one for production (VLAN 100) and one for management+vMotion (VLAN 200) because vMotion can share VLAN with management.
Why it's wrong here
Incorrect: Management and vMotion should be on separate VLANs to avoid resource contention and security risks; sharing a VLAN is not a recommended best practice.
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common trap is assuming that management and vMotion can share a VLAN or that VLAN trunking simplifies configuration. In reality, each VMkernel service type should have its own VLAN and port group for isolation and performance.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Distributed Port Group
- VLAN ID
- VMkernel Adapter
- Traffic Isolation
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
Distributed Port Group
Real-world example
How this comes up in practice
A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review distributed Port Group, then practise related VCP-DCV questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this VCP-DCV question test?
Configure and Manage vSphere Networking — This question tests Configure and Manage vSphere Networking — Distributed Port Group.
What is the correct answer to this question?
The correct answer is: Create three separate distributed port groups, each with the appropriate VLAN ID, and assign each VM kernel adapter or VM to the correct port group. — Option A is correct because best practice for segmenting different traffic types (production, management, vMotion) on a distributed switch is to create separate distributed port groups, each assigned a unique VLAN ID. This isolates traffic at Layer 2, enhances security, and prevents interference. VMkernel adapters for management and vMotion, as well as VMs for production, are then attached to their respective port groups. Option B is incorrect because VLAN tagging on VMs is not suitable for VMkernel adapters, which require dedicated port groups. Option C is incorrect because using standard switches defeats the purpose of a distributed switch and adds management complexity. Option D is incorrect because VLAN trunk (4095) is used for guest-level tagging, not for isolating kernel traffic. Option E is incorrect because management and vMotion should be on separate VLANs to avoid resource contention and security risks.
What should I do if I get this VCP-DCV question wrong?
Review distributed Port Group, then practise related VCP-DCV questions on the same topic to reinforce the concept.
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?
Distributed Port Group
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Last reviewed: Jun 24, 2026
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