Question bank
4,310 interview questions, answered.
Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.
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62 questions
- 1Context windows and their practical limitsMediumAI ML· Rr/ExperiencedDevs
- 2Why divide by sqrt(d_k) in scaled dot-product attention?MediumAI ML· OMOpenAI MLE
- 3A/B testing LLM productsHardAI ML
- 4Agent memory: short-term vs long-termHardAI ML
- 5Bias-variance tradeoff: practical rules of thumbMediumAI ML
- 6BPE vs SentencePiece vs WordPiece tokenizationMediumAI ML
- 7Catastrophic forgetting during fine-tuningHardAI ML
- 8Common agent failure modes in productionHardAI ML
- 9Dense vs sparse (BM25) vs hybrid retrievalMediumAI ML
- 10Designing LLM benchmarks: MMLU, GSM8K, HELMHardAI ML
- 11Detecting distribution shift in production LLM trafficHardAI ML
- 12Diagnosing bias vs variance by experimentMediumAI ML
- 13Document chunking strategies for RAGMediumAI ML
- 14DPO vs RLHF/PPO: when would you pick each?HardAI ML
- 15Evaluating reasoning models vs chat modelsHardAI ML
- 16Fine-tuning vs RAG vs prompt engineeringHardAI ML
- 17FlashAttention and why it mattersHardAI ML
- 18Grid search vs random search vs Bayesian optimizationMediumAI ML
- 19Guardrails for agents that call external APIsHardAI ML
- 20Handling severe class imbalance in productionMediumAI ML
- 21How do you evaluate a RAG system?HardAI ML
- 22How do you evaluate an agent?HardAI ML
- 23Knowledge distillation for LLMsHardAI ML
- 24L1 vs L2 regularizationEasyAI ML