You are running only Kubernetes workloads on a worker node that requires maintenance, such as installing patches or an OS upgrade
Which command must be run on the node to gracefully terminate all pods on the node, while marking the node as unschedulable?

• A.'docker swarm leave'
• B.'kubectl drain <node name>'
• C.'docker node update --availability drain <node name>'
• D.'kubectl cordon <node name>'

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Seven managers are in a swarm cluster.
Is this how should they be distributed across three datacenters or availability zones?
Solution: 5-1-1

• A.Yes
• B.No

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Seven managers are in a swarm cluster.
Is this how should they be distributed across three datacenters or availability zones?
Solution: 3-3-1

• A.Yes
• B.No

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Is this a supported user authentication method for Universal Control Plane?
Solution. x.500

• A.Yes
• B.No

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One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times. Is this the action taken by the orchestrator to fix the unhealthy container?
Solution: The controller managing the pod is autoscaled back to delete the unhealthy pod and alleviate load.

• A.No
• B.Yes

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