A vSphere administrator uses vMotion to migrate a virtual machine between two ESXi hosts and notices that they can no longer ping the VM.
What is the cause?
A. The destination host has an incorrect VLAN tag on the virtual machine port group for the VM.
B. The destination host has two port groups with the same VLAN tag.
C. There is an MTU mismatch.
D. The virtual machine has RDMs attached.
You should have atleast 2 distributed port groups (DPG) with the same VLAN when using Distributed Switches anyways. (1 static/fixed + 1 ephemeral) Always good practice to have an ephemeral port DPG (as a backup) equivalent for each static/fixed binded DPG in case vCenter goes down. This has saved me in the past when vCenter goes down and you need to assign DPGs to VMs on a host level.
Correct answer is A. https://communities.vmware.com/thread/459362