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AIF-C01 Practice Question: A team has created a knowledge base in Amazon…
A team has created a knowledge base in Amazon Bedrock for a Q&A application. After updating the source documents, they notice that the model still returns old information. What is the MOST likely cause?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The knowledge base has not been resynchronized after updating the documents
The vector store must be resynchronized after document updates. Chunking changes, model selection, and guardrails would not cause stale data if the vector store is not refreshed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The chunking strategy is incorrect
Why it's wrong here
Chunking affects retrieval quality but does not cause stale data if the store is synced.
- ✗
The foundation model has a limited context window
Why it's wrong here
Context window does not cause retrieval of old data.
- ✗
The guardrails are filtering out the new information
Why it's wrong here
Guardrails filter content but do not prevent retrieval of new data if synced.
- ✓
The knowledge base has not been resynchronized after updating the documents
Why this is correct
Syncing is required to reflect changes in the vector store.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AIF-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AIF-C01 exam.