1V0-621 · Question #229
What are two functionalities of vSphere vMotion? (Choose two)
The correct answer is B. Avoids virtual machine downtime C. Migrates virtual machines from one ESXi host to another. See the full explanation below for the reasoning.
Question
What are two functionalities of vSphere vMotion? (Choose two)
Options
- AMonitors resource requirements in a cluster
- BAvoids virtual machine downtime
- CMigrates virtual machines from one ESXi host to another
- DAllocates available resources among the virtual machines
How the community answered
(30 responses)- A7% (2)
- B77% (23)
- D17% (5)
Community Discussion
6
Viktor S.Mar 5, 2026B and C are correct. vMotion is specifically the live migration feature that moves a running VM from one ESXi host to another without taking it offline, which is exactly what "avoids VM downtime" and "migrates VMs between hosts" describe. The other options describe DRS, which is a completely different thing that monitors cluster resource usage and balances VMs across hosts automatically. Confusing vMotion with DRS is the classic way to miss this question, so know the distinction cold before exam day.
Johan G.Mar 8, 2026Viktor nailed the B and C call, though worth noting vMotion is also the underlying transport that DRS actually uses when it decides to rebalance, so the two are less "completely different" and more "orchestrator versus mechanism."
Grace U.Mar 9, 2026Honestly my first instinct was to grab A and D because they both sound like things that happen around a migration event, and the exam loves to blur those lines. What pulled me back was remembering that monitoring resources and allocating them across a cluster is DRS territory, not vMotion's job. vMotion has one core identity: it moves a running virtual machine from one ESXi host to another without shutting it down, which is exactly what B and C describe together. Once I anchored on "what does vMotion itself actually do versus what DRS does with it," B and C locked in pretty cleanly.
Ivana K.Mar 12, 2026B and C nail it, vMotion moves live VMs between hosts with zero downtime.
Grace U.Mar 12, 2026Just worth keeping in your back pocket that the exam loves to slip in Storage vMotion as a distractor, so knowing that plain vMotion moves the running VM between hosts while leaving storage in place, whereas Storage vMotion migrates the disk files, can save you from a tricky B-vs-D swap on the real thing.
Johan G.Mar 23, 2026I almost locked in A and C because "monitors resource requirements" sounds exactly like what you need before a live migration, and I figured vMotion had to be doing that legwork under the hood. What snapped me out of it was remembering that resource monitoring and workload balancing across a cluster is DRS territory, not vMotion. vMotion has two jobs: keep the VM running with no downtime while you move it, and actually move it between hosts over the network. B and C is the right pair. A and D describe DRS functions, which is a completely separate component even though DRS can trigger vMotion as its enforcement mechanism.