Migration & HA interview questions

114 real Migration & HA questions from the Virtualization bank, as asked in Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd — free to start.

1. What is vMotion?

Junior
  1. A.A DRS rule that keeps specified VMs running on the same host (VM-VM affinity) or a defined host group (VM-host affinity)
  2. B.a rule keeping specified VMs together on the same host
  3. C.a saved-state VM move with a brief pause
  4. D.live migration of a running VM between ESXi hosts with no downtime
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3. Which statement is correct?

Junior
  1. A.vMotion — live migration of a running VM between ESXi hosts with no downtime
  2. B.vMotion — Recovery Time Objective: the maximum acceptable time to restore a service after an outage
  3. C.vMotion — a saved-state VM move with a brief pause
  4. D.vMotion — XenServer/XCP-ng live migration of a running VM
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4. What is Storage vMotion?

Mid
  1. A.A migration that changes both compute host and datastore in one operation, working even between hosts with no shared storage
  2. B.live migration of a VM's disk files between datastores
  3. C.A vMotion variant that encrypts the migration traffic in transit, mandatory for encrypted VMs and optional otherwise
  4. D.a rule keeping specified VMs apart on different hosts
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6. Which statement is correct?

Mid
  1. A.Storage vMotion — The default migration model (vMotion, KVM) that iteratively copies dirty memory pages to the destination while the source runs, then briefly pauses to copy the last delta
  2. B.Storage vMotion — XenServer/XCP-ng live migration of a running VM
  3. C.Storage vMotion — a rule keeping specified VMs apart on different hosts
  4. D.Storage vMotion — live migration of a VM's disk files between datastores
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7. What is vSphere HA?

Junior
  1. A.HA uses shared datastores as a secondary liveness channel to distinguish host isolation from host failure.
  2. B.restarting VMs on surviving hosts after a host failure
  3. C.Admission-control setting reserving enough capacity to restart all VMs after losing the specified number of hosts.
  4. D.Enhanced vMotion Compatibility masks newer CPU features to a common baseline so mixed-generation hosts can vMotion.
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9. Which statement is correct?

Junior
  1. A.vSphere HA — XenServer/XCP-ng live migration of a running VM
  2. B.vSphere HA — restarting VMs on surviving hosts after a host failure
  3. C.vSphere HA — live migration of a VM's disk files between datastores
  4. D.vSphere HA — Automatically migrating all running VMs off a host before patching so the host can reboot without downtime
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10. What is DRS?

Junior
  1. A.A vMotion variant that encrypts the migration traffic in transit, mandatory for encrypted VMs and optional otherwise
  2. B.restarting VMs on surviving hosts after a host failure
  3. C.A DRS rule that keeps specified VMs running on the same host (VM-VM affinity) or a defined host group (VM-host affinity)
  4. D.load-balancing VMs across hosts using vMotion
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12. Which statement is correct?

Junior
  1. A.DRS — All-Paths-Down is a transient loss of storage paths; Permanent Device Loss is a definitive SCSI sense indicating the device is gone.
  2. B.DRS — Migrates VMs between hosts managed by different vCenters, even across SSO domains in vSphere 8.
  3. C.DRS — load-balancing VMs across hosts using vMotion
  4. D.DRS — XenServer/XCP-ng live migration of a running VM
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13. What is Fault Tolerance (FT)?

Mid
  1. A.restarting VMs on surviving hosts after a host failure
  2. B.load-balancing VMs across hosts using vMotion
  3. C.The configured action (leave powered on, power off, shut down) a host takes when it loses management network and cannot reach isolation addresses
  4. D.a lockstep secondary VM giving zero-downtime, no-data-loss failover
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15. Which statement is correct?

Mid
  1. A.Fault Tolerance (FT) — A third lightweight component in a two-site stretched cluster or vSAN that breaks quorum ties and decides which site survives a partition
  2. B.Fault Tolerance (FT) — Admission-control setting reserving enough capacity to restart all VMs after losing the specified number of hosts.
  3. C.Fault Tolerance (FT) — Recovery Time Objective: the maximum acceptable time to restore a service after an outage
  4. D.Fault Tolerance (FT) — a lockstep secondary VM giving zero-downtime, no-data-loss failover
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16. What is Hyper-V Live Migration?

Mid
  1. A.A vMotion variant that encrypts the migration traffic in transit, mandatory for encrypted VMs and optional otherwise
  2. B.Admission-control setting reserving enough capacity to restart all VMs after losing the specified number of hosts.
  3. C.zero-downtime migration of a running VM between hosts
  4. D.a saved-state VM move with a brief pause
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18. Which statement is correct?

Mid
  1. A.Hyper-V Live Migration — The default migration model (vMotion, KVM) that iteratively copies dirty memory pages to the destination while the source runs, then briefly pauses to copy the last delta
  2. B.Hyper-V Live Migration — Evacuates VMs from a host flagged as degraded by a hardware health provider before it fully fails.
  3. C.Hyper-V Live Migration — zero-downtime migration of a running VM between hosts
  4. D.Hyper-V Live Migration — A KVM/QEMU migration mode that switches execution to the destination immediately and pulls remaining pages on demand, bounding downtime but risking failure if the network drops mid-migration
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19. What is Quick Migration?

Mid
  1. A.load-balancing VMs across hosts using vMotion
  2. B.a saved-state VM move with a brief pause
  3. C.Shared visibility of the VM, compatible CPUs (or EVC), a vMotion-enabled VMkernel, and sufficient bandwidth.
  4. D.A feature that evacuates VMs off a host flagged as degraded by a hardware health provider before an actual failure occurs
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21. Which statement is correct?

Mid
  1. A.Quick Migration — live migration of a running VM between ESXi hosts with no downtime
  2. B.Quick Migration — A feature that evacuates VMs off a host flagged as degraded by a hardware health provider before an actual failure occurs
  3. C.Quick Migration — a saved-state VM move with a brief pause
  4. D.Quick Migration — Shared visibility of the VM, compatible CPUs (or EVC), a vMotion-enabled VMkernel, and sufficient bandwidth.
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22. What is affinity rule?

Mid
  1. A.a rule keeping specified VMs together on the same host
  2. B.A migration that changes both compute host and datastore in one operation, working even between hosts with no shared storage
  3. C.Migrates VMs between hosts managed by different vCenters, even across SSO domains in vSphere 8.
  4. D.live migration of a VM's disk files between datastores
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24. Which statement is correct?

Mid
  1. A.affinity rule — a rule keeping specified VMs together on the same host
  2. B.affinity rule — live migration of a running VM between ESXi hosts with no downtime
  3. C.affinity rule — A DRS rule that keeps specified VMs on separate hosts so a single host failure cannot take down all members of a clustered application
  4. D.affinity rule — HA uses shared datastores as a secondary liveness channel to distinguish host isolation from host failure.
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25. What is anti-affinity rule?

Mid
  1. A.The configured action (leave powered on, power off, shut down) a host takes when it loses management network and cannot reach isolation addresses
  2. B.The default migration model (vMotion, KVM) that iteratively copies dirty memory pages to the destination while the source runs, then briefly pauses to copy the last delta
  3. C.HA uses shared datastores as a secondary liveness channel to distinguish host isolation from host failure.
  4. D.a rule keeping specified VMs apart on different hosts
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27. Which statement is correct?

Mid
  1. A.anti-affinity rule — A vMotion variant that encrypts the migration traffic in transit, mandatory for encrypted VMs and optional otherwise
  2. B.anti-affinity rule — a rule keeping specified VMs apart on different hosts
  3. C.anti-affinity rule — a saved-state VM move with a brief pause
  4. D.anti-affinity rule — Migrates VMs between hosts managed by different vCenters, even across SSO domains in vSphere 8.
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28. What is XenMotion?

Mid
  1. A.A migration that changes both compute host and datastore in one operation, working even between hosts with no shared storage
  2. B.XenServer/XCP-ng live migration of a running VM
  3. C.Recovery Point Objective: the maximum acceptable amount of data loss measured as time since the last recoverable copy
  4. D.zero-downtime migration of a running VM between hosts
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30. Which statement is correct?

Mid
  1. A.XenMotion — XenServer/XCP-ng live migration of a running VM
  2. B.XenMotion — A DRS rule that keeps specified VMs running on the same host (VM-VM affinity) or a defined host group (VM-host affinity)
  3. C.XenMotion — a lockstep secondary VM giving zero-downtime, no-data-loss failover
  4. D.XenMotion — Asynchronously copying VM data to a recovery site so workloads can be restarted there within the RPO after a primary-site loss
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