If a pod has a preferred podAntiAffinity rule to avoid nodes with pods labeled app: cache, what is the expected behavior when all nodes have such pods?

medium📝 Predict Output Q5 of 15

Kubernetes - Scheduling

If a pod has a preferred podAntiAffinity rule to avoid nodes with pods labeled app: cache, what is the expected behavior when all nodes have such pods?

AThe pod will remain pending indefinitely

BThe pod will be scheduled on any node despite the preference

CThe pod will be scheduled only on nodes without <code>app: cache</code> pods

DThe pod will be deleted automatically

Step-by-Step Solution

Solution:

Step 1: Understand preferred podAntiAffinity behavior
Preferred podAntiAffinity is a soft rule; scheduler tries to avoid matching nodes but can ignore if no alternatives.
Step 2: Analyze scenario
Since all nodes have pods with label app=cache, the pod will be scheduled anyway despite preference.
Final Answer:
The pod will be scheduled on any node despite the preference -> Option B
Quick Check:
Preferred podAntiAffinity is a soft avoidance, not blocking [OK]

Quick Trick: Preferred anti-affinity is a soft rule, pod schedules anyway if needed [OK]

Common Mistakes:

Thinking preferred rules block scheduling
Confusing preferred with required affinity
Assuming pod deletion on rule violation

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More Kubernetes Quizzes

If a pod has a preferred podAntiAffinity rule to avoid nodes with pods labeled app: cache, what is the expected behavior when all nodes have such pods?

Step 1: Understand preferred podAntiAffinity behavior

Step 2: Analyze scenario

Final Answer:

Quick Check:

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