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Claude Certified Developer · CCDV-F

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Sample questionMultiple choice
Which two statements correctly distinguish input tokens from output tokens in an API interaction? (Choose 2.)
  1. A.Output tokens are generated by the model in its response.Correct answer
  2. B.Input tokens do not affect cost or capacity.
  3. C.Output tokens are never reported in usage metrics.
  4. D.Input tokens include the prompt and supplied request context.Correct answer
Why this is correct
Input tokens are supplied to the model, while output tokens are produced during generation. Both are represented in request usage and contribute to capacity and cost considerations. Cache creation and cache reads may be reported and billed separately from uncached input; those accounting details do not change the input-versus-generated-output distinction.
Knowledge domain: Model Selection and OptimizationLearning topic: LLM FundamentalsDifficulty: beginner

Subject coverage

Knowledge domains covered in this subject

These weights describe the full subject blueprint. Free-test questions are selected randomly from the available question pool.

Agents and Workflows14.7%
Applications and Integration33.1%
Claude Code3.1%
Eval, Testing, and Debugging2.6%
Model Selection and Optimization16.8%
Prompt and Context Engineering11%
Security and Safety8.1%
Tools and MCPs10.6%

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