Quick Answer
The answer is the **aws:SourceOrgId** condition key, which restricts log delivery to only accounts within your AWS Organization. This key works by evaluating the organization ID attached to the principal’s request, ensuring that only members of that specific organization can write logs to the S3 bucket, regardless of which individual account or role initiates the action. On the AWS Certified Security Specialty SCS-C02 exam, this question tests your understanding of scalable cross-account policy design for centralized logging—a common scenario where you must avoid hardcoding individual account IDs. The trap is confusing **aws:SourceOrgId** with **aws:PrincipalOrgID** (which is not a valid key) or **aws:SourceAccount** (which requires manual updates for each new account). A reliable memory tip: think “SourceOrgId” as the “source organization’s ID” that travels with the request, making it the ideal global condition for multi-account log delivery without constant policy maintenance.
This SCS-C02 practice question tests your understanding of security logging and monitoring. 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 company uses AWS Organizations with multiple accounts. The security team wants to centralize the collection of VPC Flow Logs and AWS CloudTrail logs from all accounts into a single Amazon S3 bucket in the management account. The S3 bucket policy must allow cross-account log delivery. Which condition in the bucket policy should be used to restrict log delivery to only the organization's accounts?
aws:SourceArn
Why wrong: Could be too restrictive if ARN format varies.
aws:SourceOrgId
Valid condition key that restricts to the entire organization.
aws:SourceAccount
Why wrong: Requires specifying each account individually, not scalable.
aws:PrincipalOrgID
Why wrong: Not a valid condition key.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
aws:SourceOrgId
Using the aws:SourceOrgId condition key ensures that only principals from the specified AWS Organization can write to the bucket. Option B is correct. Option A is wrong because aws:SourceAccount would require specifying each account individually, which is not scalable. Option C is wrong because aws:PrincipalOrgID is not a valid condition key. Option D is wrong because aws:SourceArn could be too restrictive if the ARN format is not consistent across services.
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.
aws:SourceArn
Why it's wrong here
Could be too restrictive if ARN format varies.
aws:SourceOrgId
Why this is correct
Valid condition key that restricts to the entire organization.
Related concept
Read the scenario before looking for a memorised answer.
aws:SourceAccount
Why it's wrong here
Requires specifying each account individually, not scalable.
aws:PrincipalOrgID
Why it's wrong here
Not a valid condition key.
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 SCS-C02 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.
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FAQ
Security Logging and Monitoring — This question tests Security Logging and Monitoring — Read the scenario before looking for a memorised answer..
The correct answer is: aws:SourceOrgId — Using the aws:SourceOrgId condition key ensures that only principals from the specified AWS Organization can write to the bucket. Option B is correct. Option A is wrong because aws:SourceAccount would require specifying each account individually, which is not scalable. Option C is wrong because aws:PrincipalOrgID is not a valid condition key. Option D is wrong because aws:SourceArn could be too restrictive if the ARN format is not consistent across services.
Identify which SCS-C02 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.
About these practice questions
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Last reviewed: Jun 20, 2026
This SCS-C02 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 SCS-C02 exam.
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