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Question 48 of 1,040

Design Secure Architectures →mediumMultiple ChoiceObjective-mapped

Quick Answer

The answer is to enable an AWS Organizations CloudTrail organization trail that delivers management event logs to a centralized S3 bucket in a dedicated audit account, for all regions. This is correct because an organization trail automatically captures immutable audit records of every API call—including IAM actions like UpdateAssumeRolePolicy—across all member accounts, logging the exact principal ARN, source IP, user agent, and request parameters needed for forensic investigation. On the SAA-C03 exam, this scenario tests your understanding that only an organization-level trail can provide centralized, immutable multi-account audit logging; a common trap is to suggest sending CloudWatch Logs to a central account, but CloudWatch logs are not immutable and do not capture the full API-level detail required. Remember that for immutable, cross-account API audit trails, you must use an organization trail with S3 bucket versioning and MFA delete enabled—think “Org Trail = One Trail to Rule Them All.”

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 SOC analyst needs an immutable, centralized audit record of configuration and API changes across multiple AWS accounts. Recently, an operator changed an IAM role trust policy, and investigators must determine exactly which principal made the change and which parameters were used.

Your current setup sends application logs to CloudWatch Logs, but there is no organization-level API audit logging.

Which approach best satisfies the requirement?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.

Question 1mediummultiple choice

Full question →

A
Enable an AWS Organizations CloudTrail organization trail that delivers management event logs (including IAM) to a centralized S3 bucket in a dedicated audit account, for all regions.
CloudTrail management events provide authoritative audit logs for API actions like IAM policy changes and can be centralized via an organization trail.
B
Use CloudWatch Logs metric filters on application logs to infer which principals changed trust policies.
Why wrong: CloudWatch metric filters cannot capture AWS management API calls for IAM changes unless explicitly logged by the application.
C
Rely on GuardDuty alerts to provide the full request parameters for every IAM policy change.
Why wrong: GuardDuty focuses on threat detection and does not provide comprehensive, authoritative audit trails for every IAM change.
D
Enable AWS Config only and store periodic snapshots without CloudTrail management events.
Why wrong: AWS Config records configuration state changes, but CloudTrail is the primary service for detailed API action audit logging.

Full breakdown with real-world context →

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 an AWS Organizations CloudTrail organization trail that delivers management event logs (including IAM) to a centralized S3 bucket in a dedicated audit account, for all regions.

Option A is correct because an AWS Organizations CloudTrail organization trail captures management events (including IAM API calls like 'UpdateAssumeRolePolicy') across all accounts in the organization, delivering immutable logs to a centralized S3 bucket in a dedicated audit account. This provides the exact principal ARN, source IP, user agent, and request parameters for every API call, meeting the requirement for a centralized, immutable audit record of configuration and API changes.

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 an AWS Organizations CloudTrail organization trail that delivers management event logs (including IAM) to a centralized S3 bucket in a dedicated audit account, for all regions.
Why this is correct
CloudTrail management events provide authoritative audit logs for API actions like IAM policy changes and can be centralized via an organization trail.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use CloudWatch Logs metric filters on application logs to infer which principals changed trust policies.
Why it's wrong here
CloudWatch metric filters cannot capture AWS management API calls for IAM changes unless explicitly logged by the application.
✗
Rely on GuardDuty alerts to provide the full request parameters for every IAM policy change.
Why it's wrong here
GuardDuty focuses on threat detection and does not provide comprehensive, authoritative audit trails for every IAM change.
✗
Enable AWS Config only and store periodic snapshots without CloudTrail management events.
Why it's wrong here
AWS Config records configuration state changes, but CloudTrail is the primary service for detailed API action audit logging.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse AWS Config's resource tracking with CloudTrail's API-level auditing, failing to realize that only CloudTrail captures the 'who' and 'how' (principal and parameters) of a change, while Config only records the 'what' (state after change).

Detailed technical explanation

How to think about this question

CloudTrail organization trails use a management event log that records all IAM API calls (e.g., 'iam:UpdateAssumeRolePolicy') with the 'userIdentity' field containing the ARN of the IAM user or role, and 'requestParameters' showing the full policy document. The logs are delivered to an S3 bucket with SSE-S3 encryption and bucket policies that prevent deletion (e.g., using S3 Object Lock or MFA Delete), ensuring immutability. In a real-world scenario, this allows investigators to trace a trust policy change to a specific cross-account role session, including the 'sessionContext' attributes like 'sourceIdentity'.

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.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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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 an AWS Organizations CloudTrail organization trail that delivers management event logs (including IAM) to a centralized S3 bucket in a dedicated audit account, for all regions. — Option A is correct because an AWS Organizations CloudTrail organization trail captures management events (including IAM API calls like 'UpdateAssumeRolePolicy') across all accounts in the organization, delivering immutable logs to a centralized S3 bucket in a dedicated audit account. This provides the exact principal ARN, source IP, user agent, and request parameters for every API call, meeting the requirement for a centralized, immutable audit record of configuration and API changes.

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.

Are there clue words in this question I should notice?

Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Same concept, more angles

1 more ways this is tested on SAA-C03

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. A SOC analyst needs an immutable, centralized audit record of configuration and API changes across multiple AWS accounts. Recently, an operator changed an IAM role trust policy, and investigators must determine exactly which principal made the change and which parameters were used. Your current setup sends application logs to CloudWatch Logs, but there is no organization-level API audit logging. Which approach best satisfies the requirement?

medium

✓ A.Enable an AWS Organizations CloudTrail organization trail that delivers management event logs (including IAM) to a centralized S3 bucket in a dedicated audit account, for all regions.
B.Use CloudWatch Logs metric filters on application logs to infer which principals changed trust policies.
C.Rely on GuardDuty alerts to provide the full request parameters for every IAM policy change.
D.Enable AWS Config only and store periodic snapshots without CloudTrail management events.

Why A: Option A is correct because an AWS Organizations CloudTrail organization trail captures management events (including IAM API calls like ChangeTrustPolicy) across all accounts and regions, storing immutable logs in a centralized S3 bucket in a dedicated audit account. This provides the exact principal ARN, source IP, and request parameters needed for forensic investigation, meeting the immutable and centralized audit requirement.

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