Bird
0
0

A user tries to access the Kubernetes API but gets a connection refused error. Which control plane component is most likely down?

medium📝 Troubleshoot Q7 of 15
Kubernetes - Fundamentals
A user tries to access the Kubernetes API but gets a connection refused error. Which control plane component is most likely down?
Akube-proxy
Bkube-apiserver
Ckube-scheduler
Dkube-controller-manager
Step-by-Step Solution
Solution:

  1. Step 1: Identify component handling API requests

    The kube-apiserver is the front door for all API requests to the cluster.

  2. Step 2: Analyze connection refused error

    If the API server is down, clients cannot connect, causing connection refused errors. Other components do not serve API requests directly.

  3. Final Answer:

    kube-apiserver -> Option B

  4. Quick Check:

    API connection refused = kube-apiserver down [OK]
Quick Trick: API errors usually mean kube-apiserver is down [OK]
Common Mistakes:
  • Blaming controller-manager for API connection issues
  • Confusing scheduler with API server
  • Thinking kube-proxy handles API requests

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Kubernetes Quizzes
Labels and Selectors - Adding labels to resources - Quiz 8hard Labels and Selectors - Why labels organize resources - Quiz 2easy Labels and Selectors - Label-based filtering with kubectl - Quiz 2easy Labels and Selectors - Adding labels to resources - Quiz 10hard Pods - Init containers - Quiz 12easy ReplicaSets and Deployments - Creating Deployments with YAML - Quiz 3easy Services - Service discovery via DNS - Quiz 4medium Services - Why Services provide stable networking - Quiz 10hard kubectl Essential Commands - kubectl describe for details - Quiz 1easy kubectl Essential Commands - kubectl get for listing resources - Quiz 8hard