Answer
Anti-affinity prevents co-location to reduce correlated failures; PDB does not control placement.
Quick Answer
PDB protects against voluntary disruptions (drain, eviction). During node failures (involuntary), PDB doesn't apply — Kubernetes terminates the node's Pods regardless. Pod anti-affinity ensures replicas land on different nodes, so a node failure only kills one replica. Anti-affinity is the HA strategy; PDB is the controlled-maintenance strategy.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ