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CKA study material · question 715 of 1000

A Service sets trafficDistribution to PreferSameZone. What does this guarantee?

  1. Nothing absolute; it is a preference the implementation applies
  2. That cross-zone traffic is dropped
  3. That endpoints outside the zone are removed from the Service
  4. That the Service has at least one endpoint per zone
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Answer: A. Nothing absolute; it is a preference the implementation applies

trafficDistribution expresses preferences rather than the strict guarantees traffic policies make, so cross-zone traffic still flows when the local zone has nothing to serve it.

Source: Service (Kubernetes) — Traffic distribution control

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