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CKA study material · question 420 of 1000

What else does the node controller do besides watching health? Choose two.

  1. Asks the cloud provider whether an unhealthy node's machine still exists
  2. Programs the node's Service forwarding rules
  3. Assigns a CIDR block to a node when it registers
  4. Renews the node's certificates
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Answer: C. Assigns a CIDR block to a node when it registers
A. Asks the cloud provider whether an unhealthy node's machine still exists

The node controller assigns CIDRs and, in a cloud, confirms with the provider before deleting a Node object.

Source: Nodes (Kubernetes) — Node controller

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