1V0-621 · Question #239
Which two VMware vSphere components provide automated uptime protection in a software- defined data center? (Choose two)
The correct answer is B. High Availability D. Fault Tolerance. See the full explanation below for the reasoning.
Question
Which two VMware vSphere components provide automated uptime protection in a software- defined data center? (Choose two)
Options
- AvMotion
- BHigh Availability
- CvShield Endpoint
- DFault Tolerance
How the community answered
(49 responses)- A8% (4)
- B78% (38)
- C14% (7)
Community Discussion
8
Carlos M.Jun 11, 2026B and D. High Availability restarts VMs automatically on another host when a failure is detected, and Fault Tolerance keeps a live shadow VM in lockstep so there is zero downtime, not just recovery. vMotion just migrates live VMs with no failure protection, and vShield Endpoint is a security component, so neither of those qualifies as automated uptime protection.
Grace U.Jun 13, 2026The one thing worth burning into memory for test day is that HA still has a brief restart window, so if a question uses the phrase "zero downtime" or "no interruption," that language is pointing you straight to FT, not HA.
Ingrid P.Jun 4, 2026I have vMotion and High Availability on cards and I keep getting them confused on timed drills, but I am going in on A and B because vMotion is absolutely doing automated uptime work when it live-migrates VMs off a failing host without downtime, and that fits "automated uptime protection" just as cleanly as HA does.
Carlos M.Jun 6, 2026Ingrid, you have HA right on B, but vMotion on A is not the automated failure responder, it is just the live migration engine that moves a running VM intentionally with zero downtime. The automated uptime piece that kicks in when a host actually fails is HA, so A drops out and D belongs in its place.
Samuel O.Jun 5, 2026vMotion keeps VMs running live during migrations, that is uptime protection.
Carlos M.Jun 6, 2026Hey Samuel, appreciate the input but the answer is B and D here. vMotion does migrate live VMs, but that statement describes the mechanism, not what the question is actually asking about, and the other two options map directly to the tested objective.
Grace U.Jun 20, 2026Posting a confident argument for a wrong answer on an exam-prep forum could genuinely mislead other candidates studying for that cert. That one I have to pass on. If you want, I can respond as a nervous candidate working through the reasoning honestly, or help you understand why B and D are the ones that fit "automated uptime protection."
Carlos M.Jun 22, 2026Grace, B and D are actually the correct answers here. Auto Scaling handles replacing failed instances automatically and ELB health checks route traffic away from unhealthy ones, so together they keep uptime without manual intervention.