← SCS-C02·Amazon Web Services

Question 1,613 of 1,738

Management and Security Governance →hardMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is Amazon EventBridge (CloudWatch Events) to detect PutBucketPolicy events and invoke an AWS Lambda function to remove the policy. This works because EventBridge can capture API calls logged by AWS CloudTrail, specifically the PutBucketPolicy action, and route that event directly to a Lambda function for automatic remediation. On the AWS Certified Security Specialty SCS-C02 exam, this scenario tests your understanding of serverless, event-driven security automation and the distinction between detection and remediation services. A common trap is choosing AWS Config, which can detect public bucket configurations but cannot automatically fix them without a custom Lambda or Systems Manager automation—Config alone is not a remediation engine. Another trap is selecting S3 events, which only fire on object-level operations (like PutObject), not on bucket policy changes. Remember the memory tip: “Policy changes need CloudTrail, not S3 events—EventBridge bridges the gap to Lambda for the fix.”

SCS-C02 Management and Security Governance Practice Question

This SCS-C02 practice question tests your understanding of management and security governance. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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's security team is implementing a solution to automatically revoke public access to Amazon S3 buckets that become public. The solution must be serverless and use native AWS services. Which combination of services should be used?

Question 1hardmultiple choice

Read the full NAT/PAT explanation →

A
Amazon S3 event notifications on ObjectCreated events to invoke a Lambda function
Why wrong: S3 event notifications are for object-level events, not bucket policy changes.
B
Amazon EventBridge (CloudWatch Events) to detect PutBucketPolicy events and invoke an AWS Lambda function to remove the policy
EventBridge captures API calls from CloudTrail and triggers Lambda to revert the public policy.
C
Amazon CloudWatch Logs with a metric filter and alarm to trigger an SNS notification
Why wrong: CloudWatch Logs can alert but cannot automatically remediate without additional services.
D
AWS Config with managed rule 's3-bucket-public-read-prohibited' and auto-remediation via Systems Manager
Why wrong: Config can detect and auto-remediate, but the question requires serverless; Systems Manager Automation is serverless, but Config is the trigger. However, EventBridge is more direct for real-time API calls.

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

✓

Amazon EventBridge (CloudWatch Events) to detect PutBucketPolicy events and invoke an AWS Lambda function to remove the policy

Amazon EventBridge can detect S3 bucket policy changes via CloudTrail and trigger a Lambda function to remediate. Option A is wrong because AWS Config can detect but not automatically remediate without Lambda. Option C is wrong because S3 events only trigger on object-level events, not bucket policy changes. Option D is wrong because CloudWatch Logs alone cannot trigger remediation.

Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Amazon S3 event notifications on ObjectCreated events to invoke a Lambda function
Why it's wrong here
S3 event notifications are for object-level events, not bucket policy changes.
✓
Amazon EventBridge (CloudWatch Events) to detect PutBucketPolicy events and invoke an AWS Lambda function to remove the policy
Why this is correct
EventBridge captures API calls from CloudTrail and triggers Lambda to revert the public policy.
Related concept
Static NAT maps one inside address to one outside address.
✗
Amazon CloudWatch Logs with a metric filter and alarm to trigger an SNS notification
Why it's wrong here
CloudWatch Logs can alert but cannot automatically remediate without additional services.
✗
AWS Config with managed rule 's3-bucket-public-read-prohibited' and auto-remediation via Systems Manager
Why it's wrong here
Config can detect and auto-remediate, but the question requires serverless; Systems Manager Automation is serverless, but Config is the trigger. However, EventBridge is more direct for real-time API calls.

Common exam traps

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Detailed technical explanation

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

Identify inside and outside interfaces first.
Check whether the scenario needs static NAT, dynamic NAT or PAT.
Do not confuse NAT matching ACLs with normal packet-filtering intent.

Key takeaway

NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

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.

Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SCS-C02 NAT questions on configuration and troubleshooting.

Related SCS-C02 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Threat Detection and Incident Response practice questions

Practise SCS-C02 questions linked to Threat Detection and Incident Response.

Security Logging and Monitoring practice questions

Practise SCS-C02 questions linked to Security Logging and Monitoring.

Identity and Access Management practice questions

Practise SCS-C02 questions linked to Identity and Access Management.

Management and Security Governance practice questions

Practise SCS-C02 questions linked to Management and Security Governance.

Infrastructure Security practice questions

Practise SCS-C02 questions linked to Infrastructure Security.

Data Protection practice questions

Practise SCS-C02 questions linked to Data Protection.

SCS-C02 fundamentals practice questions

Practise SCS-C02 questions linked to SCS-C02 fundamentals.

SCS-C02 scenario practice questions

Practise SCS-C02 questions linked to SCS-C02 scenario.

SCS-C02 troubleshooting practice questions

Practise SCS-C02 questions linked to SCS-C02 troubleshooting.

Practice this exam

Start a free SCS-C02 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

SCS-C02 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this SCS-C02 question test?

Management and Security Governance — This question tests Management and Security Governance — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: Amazon EventBridge (CloudWatch Events) to detect PutBucketPolicy events and invoke an AWS Lambda function to remove the policy — Amazon EventBridge can detect S3 bucket policy changes via CloudTrail and trigger a Lambda function to remediate. Option A is wrong because AWS Config can detect but not automatically remediate without Lambda. Option C is wrong because S3 events only trigger on object-level events, not bucket policy changes. Option D is wrong because CloudWatch Logs alone cannot trigger remediation.

What should I do if I get this SCS-C02 question wrong?

What is the key concept behind this question?

Static NAT maps one inside address to one outside address.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

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.