VMware Carbon Black Cloud Enterprise EDR (2020) — Question 96

How are updates applied to Tanzu Kubernetes clusters?

Answer options

• A. The cluster is shutdown, Update Manager applies patches to VMs, and the cluster is restarted.
• B. Worker nodes are shutdown while Controllers are patched and restarted after the update.
• C. New nodes are incrementally added with new Kubernetes versions so as a new node is added, an older node is removed.
• D. A new cluster is completely configured and runs in parallel to the primary cluster prior to switchover.

Correct answer: C

Explanation

The correct answer is C because it describes the rolling update process in which new nodes with updated Kubernetes versions are added while older nodes are removed, ensuring minimal disruption. Options A and B incorrectly suggest that the cluster or worker nodes need to be shut down for updates, which is not the case in a rolling update. Option D suggests a complete parallel setup, which is not the standard update method for Tanzu Kubernetes clusters.