3.1Standard
Pass only the highest-ranked documents to generation.
Balance missed evidence and token cost.
Choose two evaluations.
× Incorrect
Compare recall, evidence accuracy, duplication, and token cost for different top-k values, including important documents after authorization filtering.
Detailed explanation
CorrectTest important documents that rank low and results after authorization filtering
Ranking and access effects are visible.
IncorrectA larger k always improves answers
Noise and cost also increase.
IncorrectJudge retrieval from one top result
Misses and diversity are not measured.
CorrectCompare recall, evidence accuracy, duplication, and tokens for several top-k values
Retrieval range and cost are measured.
Check official documentation
Compare the following points with the official documentation.
AWS公式AIF-C01 Domain 3.1の検索評価、top-k、RAGコストを確認する。
Official references
What to confirm
取得件数を品質・費用・認可の観点で調整できる。
Key points
- Top-k
- Recall
- Noise
Notes
- Environment: AWS公式AIF-C01試験ガイドとAWS公式ドキュメントの確認
- Compare the definition with the AIF-C01 objective and the service documentation before applying it.
- Keep the concept separate from a particular answer choice or implementation step.
Foundation review
Top-k
A setting that passes only the first k ranked search results to the next stage.
Recall
The proportion of relevant candidates that a retrieval process returns.
Question IDAWS-AIF-352
EnvironmentAWS公式AIF-C01試験ガイドとAWS公式ドキュメントの確認
Last technical review2026-08-20
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