Monitor Cluster and Application Resource Usage CKA Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A cluster has three nodes. Node A is at 90% CPU, Node B at 50%, and Node C at 20%. You need to balance load. What is the best first step?

   • ARestart Node A.
   • BCordon Node A and drain it to reschedule pods.
   • CDelete all pods on Node A.
   • DIncrease CPU limits on Node A.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which command provides a snapshot of CPU and memory usage for all pods running in a specific namespace?

   • Akubectl exec pods --namespace=default
   • Bkubectl describe pods --namespace=default
   • Ckubectl get pods --namespace=default
   • Dkubectl top pods --namespace=default
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   You notice that a node's memory usage is consistently above 90% of its capacity. What is the most likely impact on applications running on that node?

   • AApplications will automatically scale to other nodes
   • BApplications will continue to run without any impact
   • CApplications may experience performance degradation or be terminated due to memory pressure
   • DThe node will automatically restart to free memory
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   Users report that a database pod is slow. You run kubectl top pods and see the database pod using 90% of its memory limit. What is the most likely bottleneck?

   • ACPU saturation
   • BNetwork latency
   • CMemory pressure on the pod
   • DDisk I/O
   Reveal Solution Discussion Select an answer first
6. 10application · easy

   You need to check if a specific node is under memory pressure. Which command would you run to see the node's current memory usage?

   • Akubectl get node <node-name> -o yaml
   • Bkubectl describe node <node-name>
   • Ckubectl top node <node-name>
   • Dkubectl exec <node-name> -- free -m
   Reveal Solution Discussion Select an answer first