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failover

AI infra interview questions tagged failover, across every topic.

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Concepts behind "failover"

The curriculum that explains the ideas these questions test.

Foundational
📐 AI Systems Design
Multi-Region Serving and FailoverRunning inference in more than one region buys latency for distant users and survival when a region fails, and it costs a second fleet that must be capable of absorbing the first one's traffic. The design turns on three decisions: whether regions are active-active or active-passive, what state has to cross regions and what deliberately does not, and how much headroom each region carries so a failover does not simply move the outage.
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