Must Pick Baseline Classifying Question Explained
This worked AI Engineer Interview practice question tests Problem Framing. Try the answer first, then review why B is the best choice.
Short answer
The correct answer is B. Compare the existing rules, a simple statistical model, and one capable hosted model on the same split, with error severity, latency, and cost defined up front..
The baseline question is 'what is the simplest system that meets the launch bar,' which you can only answer by comparing candidates — including the incumbent rules — under pre-agreed criteria. The key is to match the exact action in the prompt to the tool, command, or concept that performs that action directly. Here, B. Compare the existing rules, a simple statistical model, and one capable hosted model on the same split, with error severity, latency, and cost defined up front. is the only option that satisfies the scenario without adding unrelated behavior.
The Question
You must pick a baseline for classifying support tickets. You have 800 labeled examples, a strict latency budget, and a rules-based system already in production. A teammate proposes the largest available model as baseline. What do you propose instead?
Why B is correct
The baseline question is 'what is the simplest system that meets the launch bar,' which you can only answer by comparing candidates — including the incumbent rules — under pre-agreed criteria. The key is to match the exact action in the prompt to the tool, command, or concept that performs that action directly. Here, B. Compare the existing rules, a simple statistical model, and one capable hosted model on the same split, with error severity, latency, and cost defined up front. 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 The baseline question is 'what is the simplest system that meets the launch bar,' which you can only answer by comparing candidates — including the incumbent rules — under pre-agreed criteria.
Option C does not match the requirement in the prompt. The correct answer is B because The baseline question is 'what is the simplest system that meets the launch bar,' which you can only answer by comparing candidates — including the incumbent rules — under pre-agreed criteria.
Option D does not match the requirement in the prompt. The correct answer is B because The baseline question is 'what is the simplest system that meets the launch bar,' which you can only answer by comparing candidates — including the incumbent rules — under pre-agreed criteria.
Key idea: Problem Framing
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.
Ready to test the full skill?
Take the free AI Engineer Interview quiz and find the exact basics to review next. No signup required.
Practice related questions
Same skill area or adjacent concept. Use these after reviewing the explanation.