One tenant's traffic is pushing everyone else past their latency objective. What do you do?

Attribute queueing, token work and live state before choosing a cap. Bound new admission, verify recovery, and distinguish fair scheduling, reserved service and physical isolation without promising instant or absolute protection.

Updated Sep 2026 · Learn how AI infrastructure works through explanations, worked examples and diagrams, then practise applying it to interview questions.

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Work through the numbers

Change the assumptions in a free calculator, then explain what the result establishes and what still needs measurement.

The concepts behind this question

Use these concept explanations to review the ideas behind this question.

Advanced

🗂️ Scheduling & Orchestration🔒 Premium

Multi-Tenancy, Quotas and Fair ShareFollow three teams through GPU borrowing and reclaim. Distinguish quotas, reservations and fair sharing; see why a returning team may leave another above its nominal share, and why failures or indivisible jobs change what can be promised.

Advanced

📐 AI Systems Design🔒 Premium

Request Routing and Load Balancing for LLMsAn LLM router chooses a compatible replica, weighing queue time against reusable prompt state. Cached work helps only when the extra wait does not erase the saving.

Core

🗂️ Scheduling & OrchestrationSign in

MIG, MPS and Time-SlicingMIG, MPS and time-slicing share a GPU in different ways. Compare memory capacity, execution behavior and isolation before choosing a mechanism.

Foundational

📐 AI Systems Design

Multi-Region Serving and FailoverMulti-region serving can improve geographic reach and survive a regional outage. It requires enough remaining capacity and a clear plan for state, routing and degraded service.

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Next in this trackThree open-weights models could serve your product. How do you choose?Next in this trackThe engine logs say CUDA graphs are disabled for your deployment. Does it matter?Next in this trackFifty teams have fine-tuned the same base model. How do you serve all of them?

FEDITOR'S NOTE

Scored on multi-resource attribution, bounded admission and cancellation, valid concurrency/cache arithmetic, conditional isolation guarantees and capacity diagnosis.

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