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Practice Problems

Realistic AI engineering scenarios with reference solutions and problem-specific grading rubrics.

5 problems
ProblemCategoryDifficultyTimeBest
  • Design a ChatGPT-like Application

    Streaming · Context Management · Conversation State · Safety · Cost Control

    LLM System Design·Medium·40 minMedium40m–Design
  • Design a Self-Serve LLM Fine-Tuning Platform

    GPU scheduling · Model registry · LoRA · Eval gating · Multi-tenancy

LLM System Design·Medium·40 min
Medium
40m
–
Design
  • Design an LLM Gateway

    API Gateway · Rate Limiting · Caching · Observability · Failover

    LLM System Design·Medium·40 minMedium40m–Design
  • Design an LLM Evaluation Platform

    LLM-as-Judge · Eval Design · Regression Testing · Human Labeling · Statistics

    LLM System Design·Hard·45 minHard45m–Design
  • Design an LLM Inference Serving System

    Continuous batching · KV cache · GPU autoscaling · Quantization · Latency budgets

    LLM System Design·Hard·45 minHard45m–Design