VCA vSphere vMotion & Live Migration 3

Question 1

What is Long Distance vMotion in vSphere?

Accepted Answer

Live VM migration across geographically separated data centers over a WAN link

Answer

Long Distance vMotion (introduced with vSphere 6.0) allows live migration of virtual machines between geographically separated sites connected over a WAN, enabling workload mobility across data centers.

Question 2

Which of the following network conditions is required when performing vMotion between hosts on different subnets?

Accepted Answer

A routed network path must exist between the vMotion VMkernel adapters on both hosts

Answer

vMotion can cross subnet boundaries as long as a routed IP path exists between the vMotion VMkernel adapters on the source and destination hosts.

Question 3

What happens to the VM's MAC address during a vMotion migration?

Accepted Answer

The MAC address is preserved — it stays the same on the destination host

Answer

vMotion preserves the virtual machine's MAC address throughout the migration, ensuring network transparency and maintaining existing ARP/switch table entries.

Question 4

Which vSphere component is responsible for orchestrating a vMotion operation?

Accepted Answer

vCenter Server coordinates the vMotion operation between the source and destination hosts

Answer

vCenter Server orchestrates the vMotion operation, instructing both the source and destination ESXi hosts on the steps required to complete the live migration.

Question 5

What is the purpose of the 'stun' phase at the end of a vMotion migration?

Accepted Answer

To briefly pause the VM on the source to copy the final dirty memory pages and transfer execution to the destination

Answer

The stun phase briefly pauses the source VM (typically for milliseconds) to copy any remaining dirty memory pages and transfer CPU execution context to the destination host, completing the cutover.

VCA - VCA-DCV VMware Certified Associate on vSphere Practice Test

VCA - VCA-DCV VMware Certified Associate on vSphere Practice Test

VCA vSphere vMotion & Live Migration 3