Answer
Throttling prevents overload from noisy clients, ensuring API server stability.
Quick Answer
In large clusters, many controllers, kubelet heartbeats, watches, and client requests all hit the API server simultaneously. Without throttling (rate limiting), a surge of requests could overwhelm it. API Priority and Fairness (APF) queues requests by priority and limits each client's throughput — preventing one noisy controller from starving critical system operations.
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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