Quick Answer
The answer is Amazon Comprehend, because it is the AWS service specifically designed to detect and redact personally identifiable information (PII) from text, making it the correct choice for anonymizing PII with Amazon Comprehend before storing sensitive chatbot conversations. Unlike encryption services such as KMS, which protect data at rest but leave the original text intact, or Amazon Macie, which identifies data exposure risks without modifying content, Comprehend’s built-in PII redaction feature directly replaces detected entities like names, addresses, or health details with placeholder tokens. On the AWS Certified AI Practitioner AIF-C01 exam, this question tests your ability to distinguish between data protection services: a common trap is confusing encryption (KMS) with anonymization, or assuming discovery tools (Macie) can alter data. Remember the memory tip: “Comprehend redacts, Macie detects, KMS protects.”
This AIF-C01 practice question tests your understanding of guidelines for responsible ai. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A startup uses Amazon Lex to build a chatbot for mental health support. They must ensure user conversations are private and not used for model improvement. Which AWS service can help anonymize text data before storage?
Amazon Textract
Why wrong: Textract extracts text from images/PDFs.
AWS Key Management Service (KMS)
Why wrong: KMS provides encryption, not anonymization.
Amazon Comprehend
Comprehend's PII detection can be used to redact entities.
Amazon Macie
Why wrong: Macie discovers sensitive data, does not redact.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon Comprehend
Option C is correct: Amazon Comprehend can detect and redact personally identifiable information (PII). Option A is wrong: KMS encrypts but doesn't redact. Option B is wrong: Macie discovers sensitive data but doesn't anonymize. Option D is wrong: Textract extracts text from documents.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon Textract
Why it's wrong here
Textract extracts text from images/PDFs.
AWS Key Management Service (KMS)
Why it's wrong here
KMS provides encryption, not anonymization.
Amazon Comprehend
Why this is correct
Comprehend's PII detection can be used to redact entities.
Related concept
Read the scenario before looking for a memorised answer.
Amazon Macie
Why it's wrong here
Macie discovers sensitive data, does not redact.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Identify which AIF-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Guidelines for Responsible AI — study guide chapter
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Guidelines for Responsible AI practice questions
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FAQ
Guidelines for Responsible AI — This question tests Guidelines for Responsible AI — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon Comprehend — Option C is correct: Amazon Comprehend can detect and redact personally identifiable information (PII). Option A is wrong: KMS encrypts but doesn't redact. Option B is wrong: Macie discovers sensitive data but doesn't anonymize. Option D is wrong: Textract extracts text from documents.
Identify which AIF-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 23, 2026
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.
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