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Given the output of kubectl top nodes showing high CPU usage on one node, what is the likely impact?

medium📝 Predict Output Q4 of 15
Kubernetes - Monitoring and Logging
Given the output of kubectl top nodes showing high CPU usage on one node, what is the likely impact?
AThe node will automatically reboot to fix the issue
BPods on that node may slow down or fail due to resource limits
CAll pods in the cluster will be deleted
DThe cluster will ignore the node and schedule pods elsewhere immediately
Step-by-Step Solution
Solution:

  1. Step 1: Analyze high CPU usage impact

    High CPU usage can cause pods on that node to slow or crash due to lack of resources.

  2. Step 2: Understand cluster behavior

    Nodes do not reboot automatically, pods are not deleted cluster-wide, and scheduling may be delayed.

  3. Final Answer:

    Pods on that node may slow down or fail due to resource limits -> Option B

  4. Quick Check:

    High CPU usage = Pod performance issues [OK]
Quick Trick: High CPU means pods may slow or fail [OK]
Common Mistakes:
  • Assuming node auto-reboots
  • Thinking all pods get deleted
  • Believing immediate pod rescheduling always happens

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