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CKA study material · question 748 of 1000

A Service manifest requests a specific clusterIP that another Service already holds. What does the API server do?

  1. It allocates the next free address instead
  2. It shares the address between both Services
  3. It returns an error
  4. It replaces the older Service's allocation
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Answer: C. It returns an error

Every cluster IP must be unique across the cluster, and asking for one already allocated fails rather than being silently reassigned.

Source: Service ClusterIP allocation (Kubernetes) — How Service ClusterIPs are allocated?

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