SK0-005 · Question #176
Which of me following is the BEST action to perform before applying patches to one of the hosts in a high availability cluster?
The correct answer is D. Failover all VMs. Before patching a cluster node, the best practice is to live-migrate or failover all virtual machines running on that node to other healthy nodes in the cluster. This ensures uninterrupted service availability while the node is taken offline for patching. Disabling the…
Question
Which of me following is the BEST action to perform before applying patches to one of the hosts in a high availability cluster?
Options
- ADisable the heartbeat network.
- BFallback cluster services.
- CSet the cluster to active-active.
- DFailover all VMs.
How the community answered
(39 responses)- A8% (3)
- B3% (1)
- C3% (1)
- D87% (34)
Explanation
Before patching a cluster node, the best practice is to live-migrate or failover all virtual machines running on that node to other healthy nodes in the cluster. This ensures uninterrupted service availability while the node is taken offline for patching. Disabling the heartbeat network (A) would cause the cluster to believe the node has failed, potentially causing split-brain scenarios. Falling back cluster services (B) and setting the cluster to active-active (C) do not safely evacuate workloads from the node being patched. Failing over VMs off the node first is the standard maintenance procedure in HA environments.
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