CCARF Practice Question
Correct answer: A
A: Claude's API is fully stateless—every request must include the complete conversation history in the `messages` array. As conversations grow, each request carries more tokens, which directly increases both processing latency and cost. The model does not maintain any internal state between calls (D is false), and response length is not inherently tied to conversation length (B).
B: Replies are not required to grow with the turn count. The cost follows the history sent on every call.
C: The symptom is token latency, not a database. Claude does not load history from a store.
D: Nothing about the user persists on the server between requests. There is no growing internal profile.