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What is the key benefit of using a DaemonSet in Kubernetes for node-level services?

easy📝 Conceptual Q1 of 15
Kubernetes - Scheduling
What is the key benefit of using a DaemonSet in Kubernetes for node-level services?
AIt schedules pods based on resource requests and limits
BIt manages multiple replicas of a pod across the cluster
CIt ensures a copy of a pod runs on every node automatically
DIt provides a way to rollback deployments easily
Step-by-Step Solution
Solution:
  1. Step 1: Understand DaemonSet purpose

    A DaemonSet ensures that a pod runs on all or selected nodes in a cluster.
  2. Step 2: Compare with other controllers

    Unlike Deployments or ReplicaSets, DaemonSets focus on per-node pod placement.
  3. Final Answer:

    It ensures a copy of a pod runs on every node automatically -> Option C
  4. Quick Check:

    DaemonSets deploy pods per node, not replicas [OK]
Quick Trick: DaemonSet = one pod per node automatically [OK]
Common Mistakes:
  • Confusing DaemonSet with Deployment or ReplicaSet
  • Thinking DaemonSet manages pod replicas cluster-wide
  • Assuming DaemonSet handles rollbacks

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