LLM Router Right 96 Question Explained
This worked AI Engineer Interview practice question tests Validation and Learning. Try the answer first, then review why B is the best choice.
Short answer
The correct answer is B. Treat security-sensitive intents as a non-compensating slice with its own severity-weighted miss rate, adversarial test set, and uncertainty-based routing to specialists..
Aggregate accuracy is dominated by easy intents, so it can rise while the rare dangerous miss gets worse — the risky slice needs its own gate and its own adversarial data. The key is to match the exact action in the prompt to the tool, command, or concept that performs that action directly. Here, B. Treat security-sensitive intents as a non-compensating slice with its own severity-weighted miss rate, adversarial test set, and uncertainty-based routing to specialists. is the only option that satisfies the scenario without adding unrelated behavior.
The Question
An LLM router is right 96% of the time but occasionally sends account-takeover reports to the general queue, and confirmed outcomes arrive weeks later. How do you gate releases?
Why B is correct
Aggregate accuracy is dominated by easy intents, so it can rise while the rare dangerous miss gets worse — the risky slice needs its own gate and its own adversarial data. The key is to match the exact action in the prompt to the tool, command, or concept that performs that action directly. Here, B. Treat security-sensitive intents as a non-compensating slice with its own severity-weighted miss rate, adversarial test set, and uncertainty-based routing to specialists. is the only option that satisfies the scenario without adding unrelated behavior.
Why the other options are wrong
Option A does not match the requirement in the prompt. The correct answer is B because Aggregate accuracy is dominated by easy intents, so it can rise while the rare dangerous miss gets worse — the risky slice needs its own gate and its own adversarial data.
Option C does not match the requirement in the prompt. The correct answer is B because Aggregate accuracy is dominated by easy intents, so it can rise while the rare dangerous miss gets worse — the risky slice needs its own gate and its own adversarial data.
Option D does not match the requirement in the prompt. The correct answer is B because Aggregate accuracy is dominated by easy intents, so it can rise while the rare dangerous miss gets worse — the risky slice needs its own gate and its own adversarial data.
Key idea: Validation and Learning
Every question is a production situation an AI engineer interviewer can put to you: a failing endpoint, a cost spike, an agent that loops, an eval that disagrees with users. The best answer is almost always the one that measures or contains the problem before it changes the model or the prompt. If you miss a question, note which habit it tests: decompose before you fix, put the security boundary where the side effect happens, and trust an eval only after you check what it covers. The 12 open-ended questions with answer guides are at aijobprep.app/questions/ai-engineer.html.
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