CCARF Practice Question
Correct answer: C
A: Summarising the whole history compresses allergies and quantities into vague phrases. That is the loss this session cannot afford.
B: The newest 20K tokens can be general chat. An allergy mentioned earlier drops out.
C: The hybrid approach preserves the highest-value information at the lowest cost. Critical facts like allergies and recipe quantities are extracted into a compact structured block (preventing the precision loss that occurs during summarization), general discussion is summarized, and recent exchanges are kept verbatim for conversational coherence. Options A and B risk losing critical dietary information; D is architectural overkill for a single cooking session.
D: Semantic search can miss a short constraint that does not resemble the current utterance, and it adds a retrieval system for one session.