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CKA study material · question 876 of 1000

You want to separate a broken Service from a broken application. Which test does that?

  1. Connect to the Service's cluster IP from a Pod
  2. Connect to each endpoint address on the Pod's own port
  3. Connect to the Service's node port from outside
  4. Resolve the Service's DNS name and compare the address
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Answer: B. Connect to each endpoint address on the Pod's own port

Going straight to the Pod addresses on the Pod port bypasses the Service mechanism entirely, so a failure there is the application and a success points at the proxy layer.

Source: Debug Services (Kubernetes) — Are the Pods working?

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