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AI-103 Practice Question 52: Multi Region Deployment Failover

Microsoft Azure AI Apps and Agents Developer Associate (AI-103) · Test 6 · question 2 of 10

Plan and manage an Azure AI solutionmedium

An architect is designing a customer-facing chat feature around a single Global Standard model deployment in one Foundry resource. To satisfy a business continuity requirement, the design must keep the feature working even if that resource's entire Azure region has an outage. A teammate argues that a Global Standard deployment already spreads requests across multiple Azure regions, so nothing else needs to change.

Is the teammate correct?

Select one answer
Show answer and explanation

Answer:

  • B. No: Foundry doesn't provide automatic failover, so the team must deploy an identical model deployment to a second Foundry resource in a second region and add their own routing logic to fail over to it

Microsoft's resiliency guidance states plainly: "Foundry itself doesn't provide automatic failover or disaster recovery." For Standard deployments, the documented approach is to deploy two Azure OpenAI resources in the same subscription, one in the preferred region and one in a secondary region, create matching deployments in both, and route traffic to the secondary deployment if the primary becomes unreachable; that routing is the application's or a gateway's job, not something Foundry does for you.

- A is wrong because the automatic distribution the teammate is describing happens *within* a Global Standard deployment's own routing across the data centers Microsoft uses to serve that single resource; it optimizes latency, but it doesn't protect against the outage of the resource itself, which is exactly the failure mode the requirement targets. - C is wrong because Provisioned (PTU) deployments trade cost for a dedicated-capacity latency SLA; that SLA doesn't extend to the region being unreachable, and a PTU deployment still lives in one region unless a second one is deployed elsewhere. - D is wrong because availability zones are a single-region concept; zone redundancy protects the Microsoft-hosted components of the service if one zone in that region fails, but a regional outage takes every zone in that region down together.

Reference: High availability and resiliency for Microsoft Foundry projects and Agent Services

Practice Test 6 ›

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