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Which Kubernetes component ensures that your application continues running even if a node in the cluster fails?

hard📝 Workflow Q8 of 15
Kubernetes - Fundamentals
Which Kubernetes component ensures that your application continues running even if a node in the cluster fails?
AIngress Controller
BConfigMap
CReplicaSet
DPersistentVolume
Step-by-Step Solution
Solution:

  1. Step 1: Understand fault tolerance in Kubernetes

    Kubernetes uses ReplicaSets to maintain a specified number of pod replicas across nodes.

  2. Step 2: Evaluate options

    ConfigMap stores configuration data, Ingress Controller manages external access, PersistentVolume manages storage; none ensure app availability on node failure.

  3. Final Answer:

    ReplicaSet -> Option C

  4. Quick Check:

    ReplicaSets maintain pod copies for availability [OK]
Quick Trick: ReplicaSets keep pods running despite node failure [OK]
Common Mistakes:
  • Confusing ConfigMap with availability feature
  • Thinking Ingress Controller manages pod availability
  • Assuming PersistentVolume handles fault tolerance

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