Exam 5V0-22.21 topic 1 question 20 discussion

Answer is A

"Reduced availability : If you see objects here, it means that those objects have suffered a failure and vSAN is attempting to re-protect them. The objects are still available for any virtual machines using them and because the SPBM policy has an FTT value for resilience, vSAN is rebuilding the missing components. " Present config 4 hosts config when one host is out does not have resources to rebuild

A RAID-5 Minimum is 04 hosts. https://kb.vmware.com/s/article/2108319 Reduced availability with no rebuild: The object has suffered a failure, but VSAN was able to tolerate it. For example: I/O is flowing and the object is accessible. However, VSAN is not working on re-protecting the object. This is not due to the delay timer (reduced availability - no rebuild - delay timer) but due to other reasons. This could be because there are not enough resources in the cluster, or this could be because there was not enough resources in the past, or there was a failure to re-protect in the past and VSAN has yet to retry. Refer to the limits health check for a first assessment if any resources may be exhausted. You have to resolve the failure or add resources as quickly as possible in order to get back to being fully protected against a subsequent failure.

Due to network outage, 60min repair timer will kick in. The question states 75 min have passed, hence repair is in progress. Reduced availability - active rebuild: The object has suffered a failure, but it was configured to be able to tolerate the failure. I/O continues to flow and the object is accessible. vSAN is actively working on re-protecting the object by rebuilding new components to bring the object back to compliance.