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VMware 2V0-21.23 Exam - Topic 7 Question 65 Discussion

An administrator is asked to segregate virtual machine (VM) traffic by VLAN on a vSphere standard switch The following requirements must be met:* VLAN ID on the switch port group must be 4095.* VLAN tagging must be done at the VM level.Which tagging mode is required?
C) Virtual Guest Tagging (VGT)
A) External Switch Tagging (EST)
B) None
D) Virtual Switch Tagging (VST)

VMware 2V0-21.23 Exam - Topic 7 Question 65 Discussion

Actual exam question for VMware's 2V0-21.23 exam
Question #: 65
Topic #: 7
[All 2V0-21.23 Questions]

An administrator is asked to segregate virtual machine (VM) traffic by VLAN on a vSphere standard switch The following requirements must be met:

* VLAN ID on the switch port group must be 4095.

* VLAN tagging must be done at the VM level.

Which tagging mode is required?

Show Suggested Answer Hide Answer
Suggested Answer: C

The tagging mode that is required is Virtual Guest Tagging (VGT), which allows VLAN tagging to be done at the VM level. VGT requires that the VLAN ID on the switch port group be set to 4095, which is a special value that indicates that packets from all VLANs are allowed to pass through. Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-D35A0A1C-B638-4819-A099-E3A8D18F7CC8.html

https://kb.vmware.com/s/article/1003806


by Kenneth at Jun 27, 2026, 10:24 PM

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Ivette
3 days ago
I'm leaning towards D) Virtual Switch Tagging (VST). It seems like a solid choice too.
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Cristen
9 days ago
Agreed! VGT allows VMs to handle their own VLAN tags.
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Sean
14 days ago
I think it's C) Virtual Guest Tagging (VGT). It fits the VM level tagging requirement.
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Peter
19 days ago
Wait, are you sure about that? Sounds a bit off.
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Yaeko
24 days ago
No way, VGT is the right choice here!
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Dallas
29 days ago
I thought VST was the way to go?
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Tresa
1 month ago
Definitely VGT for tagging at the VM level.
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Twila
1 month ago
The VLAN ID 4095 means it's trunking all VLANs.
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Claudio
1 month ago
I feel like I saw something about Virtual Switch Tagging (VST) in my notes, but it seems like VGT fits better with the requirement for VM-level tagging.
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Marsha
2 months ago
I'm a bit confused about the VLAN ID 4095. Does that mean we can't use External Switch Tagging (EST)?
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Leonie
2 months ago
I remember practicing a similar question, and I think VGT was the right choice because it allows the VM to handle its own VLAN tagging.
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Shawn
2 months ago
I think the answer might be C) Virtual Guest Tagging (VGT) since it mentions tagging at the VM level, but I'm not entirely sure.
upvoted 0 times
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