Master in Kubernetes is a node that controls and manages a group of worker nodes. So, if that Master node goes down in Kubernetes, the outcome depends on the architecture you have. That is, Single Master or Multi-Master architecture. If you have a Single-Master architecture, then it becomes a problem, if the master node goes down, and then you cannot create more services and pods, etc. and the cluster fails.
On the other hand, if you have a multi-master cluster, even if one goes down, you can depend on other masters to get your work done. If you are interested in learning more about Kubernetes, you can watch the following video on Kubernetes for Beginners, and if you are wishing to get certified and trained in Kubernetes, then check out the Kubernetes training course, from Intellipaat.
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