VMware 6V0-21.25 Exam - Topic 1 Question 3 Discussion

Actual exam question for VMware's 6V0-21.25 exam

Question #: 3
Topic #: 1

[All 6V0-21.25 Questions]

vDefend firewall provides support to VMs connected to which of the following?

AVMs connected to Overlay Networks

BVMs connected to VLAN Networks

CVMs connected to DvPG Networks

DAll of the above

Show Suggested Answer

Suggested Answer: D

A massive architectural advantage of the VMware vDefend Distributed Firewall (DFW) is that its enforcement mechanism is entirely decoupled from the underlying network topology. Because the firewall rules are enforced directly at the hypervisor kernel level (specifically at the virtual NIC of the VM) before the traffic even hits the virtual switch, it is completely agnostic to how that traffic is eventually transported.

Therefore, DFW seamlessly supports and protects VMs whether they are connected to modern NSX Geneve Overlay Networks, traditional NSX-backed VLAN Networks, or even standard vSphere Distributed Port Groups (DvPG Networks) that have no routing overlay.

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by Vallie at May 03, 2026, 08:24 AM

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Lashawnda

4 days ago

But B) VLAN Networks is also a strong choice.

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Fidelia

9 days ago

I lean towards A) Overlay Networks. More flexibility.

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Catalina

14 days ago

Yeah, that makes sense. It supports multiple types.

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Valentin

19 days ago

I think it's D) All of the above.

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King

25 days ago

I agree, all of them for sure!

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Carmen

30 days ago

Wait, does it really support DvPG?

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Lashanda

1 month ago

It's all of the above, right?

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Carmelina

1 month ago

I think it's just VLAN networks.

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Glendora

2 months ago

Definitely supports all of them!

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Merissa

2 months ago

I’m leaning towards A) VMs connected to Overlay Networks, but I remember there being a similar question where all options were valid.

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Shaquana

2 months ago

I feel like I saw something about DvPG networks in my notes, but I’m a bit confused if that means it supports all network types or just specific ones.

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Bulah

2 months ago

I remember practicing a question about firewall support for different network types, and I think it included VLANs and Overlay networks, but I can't recall if it was all of them.

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Alexia

2 months ago

I think the answer might be D) All of the above, but I’m not entirely sure if vDefend has limitations on specific network types.

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Shawn

2 months ago

I feel like I’ve seen similar questions where the answer was all-encompassing, so I’m leaning towards D, but I should double-check the documentation.

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Tammara

4 months ago

I’m a bit confused; I thought vDefend only worked with VLANs, but now I’m not so sure. Maybe I need to review the specifics again.

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Alona

4 months ago

I remember practicing a question about firewalls and network types, and I think it mentioned that vDefend supports multiple network types, so D could be right.

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Deonna

4 months ago

I think the answer might be D) All of the above, but I’m not entirely sure if vDefend has limitations on specific network types.

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