- A
Add a bucket policy on the central S3 bucket that grants the service principal 'delivery.logs.amazonaws.com' s3:PutObject permission.
This allows the Flow Logs service to write to the bucket.
- B
Create an IAM role in the logging account that the member accounts can assume to put objects.
Why wrong: VPC Flow Logs does not use IAM roles for delivery.
- C
Create an S3 bucket in each member account to receive Flow Logs, and replicate to the central bucket.
Why wrong: Replication adds complexity; direct delivery is simpler.
- D
Configure VPC Flow Logs in each member account to deliver to the central S3 bucket.
VPC Flow Logs can be delivered to an S3 bucket in another account.
- E
Enable AWS CloudTrail in the management account to aggregate logs.
Why wrong: CloudTrail is for API logs, not VPC Flow Logs.
Quick Answer
The correct answer involves two steps: configuring VPC Flow Logs in each member account to deliver to a central S3 bucket, and ensuring the bucket policy in the logging account grants the VPC Flow Logs service principal (delivery.logs.amazonaws.com) the necessary s3:PutObject permission. This works because cross-account VPC Flow Logs delivery relies on a resource-based policy on the destination S3 bucket, not on IAM roles or the management account. The service principal writes logs directly, so the bucket policy must explicitly allow that principal from any member account. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of service-to-service cross-account access patterns, often appearing as a distractor where candidates mistakenly add IAM roles or place the bucket in member accounts. A common trap is assuming the management account must be involved, but VPC Flow Logs are a per-account service. Memory tip: think “bucket policy, not IAM role” for service principal delivery.
SAP-C02 Practice Question: Design Solutions for Organizational Complexity
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. 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 has a centralized logging account and multiple member accounts. The member accounts generate VPC Flow Logs that need to be sent to a central S3 bucket in the logging account. Which TWO steps must be taken to enable this cross-account delivery?
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
Add a bucket policy on the central S3 bucket that grants the service principal 'delivery.logs.amazonaws.com' s3:PutObject permission.
Option A is correct because VPC Flow Logs can be published to a cross-account S3 bucket, but the bucket policy must allow the delivery service. Option C is correct because the bucket policy must grant the VPC Flow Logs service principal (delivery.logs.amazonaws.com) permission to write. Option B is wrong because the bucket should be in the logging account, not in member accounts. Option D is wrong because IAM roles are not used for VPC Flow Logs delivery. Option E is wrong because the management account is not needed for this setup.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Add a bucket policy on the central S3 bucket that grants the service principal 'delivery.logs.amazonaws.com' s3:PutObject permission.
Why this is correct
This allows the Flow Logs service to write to the bucket.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create an IAM role in the logging account that the member accounts can assume to put objects.
Why it's wrong here
VPC Flow Logs does not use IAM roles for delivery.
- ✗
Create an S3 bucket in each member account to receive Flow Logs, and replicate to the central bucket.
Why it's wrong here
Replication adds complexity; direct delivery is simpler.
- ✓
Configure VPC Flow Logs in each member account to deliver to the central S3 bucket.
Why this is correct
VPC Flow Logs can be delivered to an S3 bucket in another account.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable AWS CloudTrail in the management account to aggregate logs.
Why it's wrong here
CloudTrail is for API logs, not VPC Flow Logs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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
How to think about this question
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.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which SAP-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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Design Solutions for Organizational Complexity — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add a bucket policy on the central S3 bucket that grants the service principal 'delivery.logs.amazonaws.com' s3:PutObject permission. — Option A is correct because VPC Flow Logs can be published to a cross-account S3 bucket, but the bucket policy must allow the delivery service. Option C is correct because the bucket policy must grant the VPC Flow Logs service principal (delivery.logs.amazonaws.com) permission to write. Option B is wrong because the bucket should be in the logging account, not in member accounts. Option D is wrong because IAM roles are not used for VPC Flow Logs delivery. Option E is wrong because the management account is not needed for this setup.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This SAP-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 SAP-C02 exam.
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