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Exam KCNA topic 1 question 170 discussion

Actual exam question from Linux Foundation's KCNA
Question #: 170
Topic #: 1
[All KCNA Questions]

Which control plane component is responsible for updating the node Ready condition if a node becomes unreachable?

  • A. The kube-oroxy.
  • B. The node controller.
  • C. The kubelct.
  • D. The kube-apiserver
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Suggested Answer: B 🗳️
by Zangi at July 18, 2025, 3:50 a.m.

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8378ffe
2 months, 2 weeks ago
Selected Answer: B
The Node Controller, a component of the Kubernetes control plane, is responsible for updating the Node's Ready condition to Unknown or NotReady when it becomes unreachable and fails to send heartbeats to the control plane within a specific grace period. It continuously monitors node health, and when a node fails to report back, the Node Controller takes action to mark the node as unavailable and initiates the rescheduling of its pods to healthier nodes.
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Zangi
4 months, 1 week ago
Selected Answer: B
Feels like B is the intended answer here. The wording is tricky.
upvoted 1 times
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C (25%)
B (20%)
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