- A
Enable CloudTrail data events for the specific S3 bucket so that GetObject and PutObject operations are logged at the object level.
CloudTrail management events cover control-plane activity, not per-object access details in S3. Enabling S3 data events (object-level logging) causes CloudTrail to record events like GetObject and PutObject for the targeted bucket and prefixes. This directly addresses the missing visibility symptom described. It also limits logging scope when you specify the bucket/prefix.
- B
Enable AWS Config delivery to a separate bucket and create a rule to detect noncompliant S3 policies; this will automatically generate GetObject logs.
Why wrong: AWS Config evaluates resource configuration and policy compliance, but it does not provide object-level access logs like GetObject and PutObject. The requirement is detective visibility into access and writes, not configuration drift detection. This approach would not fill the logging gap for exfiltration investigations.
- C
Turn on VPC Flow Logs for the VPC hosting the S3 gateway endpoint, because network logs show S3 object read and write details.
Why wrong: VPC Flow Logs capture network traffic metadata (e.g., src/dst IPs and ports) but not S3 API actions at the object level. They cannot directly answer which objects were read from or written to within the bucket. The symptom is missing CloudTrail visibility into object-level operations, not network reachability.
- D
Add an S3 bucket policy that denies all GetObject requests unless the caller uses TLS; the denial events will create investigation logs automatically.
Why wrong: A bucket policy denial will generate some logs, but it does not provide comprehensive object access visibility for legitimate reads and writes. Additionally, enforcement does not equal detective coverage; you may still miss successful access events. The question asks for configuration to provide missing object-level logs.
Quick Answer
The answer is to enable CloudTrail data events for the specific S3 bucket so that GetObject and PutObject operations are logged. This is correct because CloudTrail management events only capture bucket-level actions like CreateBucket or bucket policy changes, not the object-level API calls that read or write individual objects. Data events, by contrast, are designed to log high-volume operations such as GetObject and PutObject, including those performed on encrypted objects, giving you the granular visibility needed for detective controls. On the SAA-C03 exam, this distinction is a frequent trap: many candidates mistakenly think enabling management events covers all activity, but the exam tests your understanding that object-level logging requires a separate data events configuration. A reliable memory tip is to think of management events as “bucket admin” actions and data events as “object access” actions—if you need to see who read or wrote a file, you must enable data events.
SAA-C03 Design Secure Architectures Practice Question
This SAA-C03 practice question tests your understanding of design secure architectures. 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.
A team wants detective controls to investigate suspected exfiltration from an S3 bucket. They need to know when objects are accessed (GetObject) and also when new encrypted objects are written.
They already enabled AWS CloudTrail for management events, but their investigation shows no visibility into object-level reads/writes in the logs they review.
Which CloudTrail configuration change most directly provides the missing object-level visibility?
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
Enable CloudTrail data events for the specific S3 bucket so that GetObject and PutObject operations are logged at the object level.
CloudTrail management events do not include object-level operations like GetObject or PutObject. By enabling CloudTrail data events for the specific S3 bucket, you capture object-level read (GetObject) and write (PutObject) API calls, including those for encrypted objects, providing the missing visibility for detective controls.
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.
- ✓
Enable CloudTrail data events for the specific S3 bucket so that GetObject and PutObject operations are logged at the object level.
Why this is correct
CloudTrail management events cover control-plane activity, not per-object access details in S3. Enabling S3 data events (object-level logging) causes CloudTrail to record events like GetObject and PutObject for the targeted bucket and prefixes. This directly addresses the missing visibility symptom described. It also limits logging scope when you specify the bucket/prefix.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable AWS Config delivery to a separate bucket and create a rule to detect noncompliant S3 policies; this will automatically generate GetObject logs.
Why it's wrong here
AWS Config evaluates resource configuration and policy compliance, but it does not provide object-level access logs like GetObject and PutObject. The requirement is detective visibility into access and writes, not configuration drift detection. This approach would not fill the logging gap for exfiltration investigations.
- ✗
Turn on VPC Flow Logs for the VPC hosting the S3 gateway endpoint, because network logs show S3 object read and write details.
Why it's wrong here
VPC Flow Logs capture network traffic metadata (e.g., src/dst IPs and ports) but not S3 API actions at the object level. They cannot directly answer which objects were read from or written to within the bucket. The symptom is missing CloudTrail visibility into object-level operations, not network reachability.
- ✗
Add an S3 bucket policy that denies all GetObject requests unless the caller uses TLS; the denial events will create investigation logs automatically.
Why it's wrong here
A bucket policy denial will generate some logs, but it does not provide comprehensive object access visibility for legitimate reads and writes. Additionally, enforcement does not equal detective coverage; you may still miss successful access events. The question asks for configuration to provide missing object-level logs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse management events (which log bucket-level operations like CreateBucket) with data events (which log object-level operations like GetObject), assuming management events cover all S3 activity.
Detailed technical explanation
How to think about this question
CloudTrail data events log S3 object-level API calls (e.g., GetObject, PutObject) at the bucket or object ARN level, with details like requester, source IP, and encryption status. For encrypted objects, PutObject with SSE-S3, SSE-KMS, or SSE-C is logged, but note that KMS decrypt calls for SSE-KMS objects are logged in CloudTrail as KMS events, not S3 data events. In real-world scenarios, enabling data events for a high-traffic bucket can generate significant log volume, so you should use selective event selectors or exclude prefixes to manage costs.
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.
TExam Day Tips
- 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.
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
Design Secure Architectures — This question tests Design Secure Architectures — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable CloudTrail data events for the specific S3 bucket so that GetObject and PutObject operations are logged at the object level. — CloudTrail management events do not include object-level operations like GetObject or PutObject. By enabling CloudTrail data events for the specific S3 bucket, you capture object-level read (GetObject) and write (PutObject) API calls, including those for encrypted objects, providing the missing visibility for detective controls.
What should I do if I get this SAA-C03 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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