An IT administrator working in a space agency has just in installed some applications that
are critical for a satellite launch mission. The administrator wants the applications to work
irrespective of any operating system failure. Which vSphere 6.x feature should the
administrator use?
A.
vSphere HA
B.
vSphere Fault Tolerance
C.
vSphere Replication
D.
vSphere Data Protection
I believe the answer should be B. vSphere Fault Tolerance
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The problem is that question is not clear about “operating system failure” it asks in a way that could be the os of VM or the esxi itself, beeing the VM.
I think that the answer is D, because even with replication or FT the failure would still persist. If its ESXI it´s FT or Replication. Shitty question
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B- vSphere Fault Tolerance
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A – vSphere HA
HA monitors OS failures. Fault Tolerance provides continuous availability for applications when the physical server fails.
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HA
Protecting against a VM guest OS failure with vSphere HA
There is a sub-feature of the High Availability (HA) feature called Virtual Machine Monitor (VMM) that may be under your radar. This feature uses VMware tools and functions by transmitting a heartbeat every second from inside the guest OS that the host can monitor to ensure that the VM is functioning properly.
If a major failure occurs within the OS, such as a Windows Blue Screen of Death (BSOD), the VMware tools driver will no longer send heartbeats. If the host doesn’t detect a heartbeat after a predetermined amount of time — such as 30 seconds — the host assumes the VM had an OS failure and restarts the VM on the same host.
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