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AIF-C01 Practice Question: Security, Compliance, and Governance for AI Solutions

A data scientist needs to allow a foundation model in Amazon Bedrock to access a specific S3 bucket containing reference documents. The bucket is in a different AWS account. What is the MOST secure way to grant access?

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

Configure the S3 bucket policy to allow access from the Bedrock service role and add a Bedrock resource policy allowing the bucket

Cross-account access requires both the S3 bucket policy to grant the Bedrock service role and the Bedrock resource policy to allow the bucket, ensuring least privilege.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Use AWS Lake Formation to grant cross-account access to the bucket

    Why it's wrong here

    Lake Formation governs data lakes in the same account or via Resource Access Manager, but direct S3 bucket access for Bedrock is not managed by Lake Formation.

  • Copy the S3 bucket to the same account as Bedrock

    Why it's wrong here

    Copying data is inefficient and may violate data residency requirements; cross-account access can be secured with policies.

  • Configure the S3 bucket policy to allow access from the Bedrock service role and add a Bedrock resource policy allowing the bucket

    Why this is correct

    This two-way policy approach ensures only the specified Bedrock role can access the bucket, following cross-account security best practices.

  • Make the S3 bucket public and use a pre-signed URL

    Why it's wrong here

    Making the bucket public violates security best practices; pre-signed URLs are for temporary access, not for ongoing model access.

Quick reference

AWS S3 Storage Class Comparison

Storage ClassMin DurationRetrievalUse Case
S3 StandardNoneImmediateFrequently accessed data
S3 Standard-IA30 daysImmediateInfrequent access, rapid retrieval
S3 One Zone-IA30 daysImmediateNon-critical infrequent data
S3 Intelligent-TieringNoneImmediate–hoursUnknown or changing access patterns
S3 Glacier Instant90 daysMillisecondsArchive with instant retrieval
S3 Glacier Flexible90 daysMinutes–hoursArchive, flexible retrieval
S3 Glacier Deep Archive180 daysHoursLong-term compliance archive

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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.