- A
Attach a resource-based policy to the S3 bucket that grants the source account's Flow Logs service permission to write.
The bucket policy must allow cross-account writes.
- B
Configure the Flow Logs destination as a CloudWatch Logs log group in the source account.
Why wrong: The question specifies publishing to S3, not CloudWatch.
- C
Create an IAM role in the source account with a trust policy that allows the Flow Logs service to assume it and grants s3:PutObject to the destination bucket.
This role is necessary for cross-account delivery.
- D
Create an IAM user in the source account with programmatic access and share the access keys.
Why wrong: Using programmatic access keys is not a recommended practice for service-to-service permissions.
- E
Enable S3 cross-account replication.
Why wrong: Replication is for copying objects after they are written, not for the initial delivery.
ANS-C01 Network Management and Operations Practice Question
This ANS-C01 practice question tests your understanding of network management and operations. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Which TWO configuration steps are required to enable VPC Flow Logs to be published to an S3 bucket in a different AWS account? (Select TWO.)
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
Attach a resource-based policy to the S3 bucket that grants the source account's Flow Logs service permission to write.
To publish VPC Flow Logs to an S3 bucket in a different AWS account, two steps are required: (1) Attach a resource-based policy to the destination S3 bucket that grants the source account's Flow Logs service permission to write objects. This is option A. (2) Create an IAM role in the source account with a trust policy that allows the Flow Logs service to assume it and grants s3:PutObject permission to the destination bucket. This is option C. Option B is incorrect because CloudWatch Logs in the source account would not enable cross-account delivery to S3. Option D is incorrect because sharing IAM user access keys is not a secure or supported method for cross-account flow logs. Option E is incorrect because S3 cross-account replication does not enable the Flow Logs service to write to the bucket.
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.
- ✓
Attach a resource-based policy to the S3 bucket that grants the source account's Flow Logs service permission to write.
Why this is correct
The bucket policy must allow cross-account writes.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure the Flow Logs destination as a CloudWatch Logs log group in the source account.
Why it's wrong here
The question specifies publishing to S3, not CloudWatch.
- ✓
Create an IAM role in the source account with a trust policy that allows the Flow Logs service to assume it and grants s3:PutObject to the destination bucket.
Why this is correct
This role is necessary for cross-account delivery.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create an IAM user in the source account with programmatic access and share the access keys.
Why it's wrong here
Using programmatic access keys is not a recommended practice for service-to-service permissions.
- ✗
Enable S3 cross-account replication.
Why it's wrong here
Replication is for copying objects after they are written, not for the initial delivery.
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.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
Identify which ANS-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.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Attach a resource-based policy to the S3 bucket that grants the source account's Flow Logs service permission to write. — To publish VPC Flow Logs to an S3 bucket in a different AWS account, two steps are required: (1) Attach a resource-based policy to the destination S3 bucket that grants the source account's Flow Logs service permission to write objects. This is option A. (2) Create an IAM role in the source account with a trust policy that allows the Flow Logs service to assume it and grants s3:PutObject permission to the destination bucket. This is option C. Option B is incorrect because CloudWatch Logs in the source account would not enable cross-account delivery to S3. Option D is incorrect because sharing IAM user access keys is not a secure or supported method for cross-account flow logs. Option E is incorrect because S3 cross-account replication does not enable the Flow Logs service to write to the bucket.
What should I do if I get this ANS-C01 question wrong?
Identify which ANS-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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 20, 2026
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