Explanation
Hint
Think about how LLMs can use external knowledge at inference time.
Hint: Identify the requirement first, then choose the approach that addresses the main constraints, trade-offs, failure modes, security, cost, and verification.
Correct answer: Retrieving relevant context before generation
Why the alternatives are weaker:
- Memorizing a definition without being able to explain when the concept is useful
- Naming a technology without explaining the engineering purpose
What the interviewer is testing
- Core AI/GenAI concept recognition
- Ability to explain the concept accurately and simply
Common Mistakes
- Memorizing a definition without being able to explain when the concept is useful
- Naming a technology without explaining the engineering purpose
Real-World Sample Answer
Retrieval-Augmented Generation (RAG) retrieves relevant context before generation so an LLM can use external or current knowledge at inference time.
