The answer is AWS Config and Amazon EventBridge. This combination works because AWS Config uses managed rules like s3-bucket-public-read-prohibited to continuously evaluate S3 bucket policies and ACLs for public read access, while Amazon EventBridge listens for Config compliance state changes and can instantly route those events to SNS, Lambda, or other targets for notification. On the AWS Certified Security Specialty SCS-C02 exam, this scenario tests your understanding of detective controls and event-driven remediation—a common trap is choosing AWS Trusted Advisor (which only provides periodic checks, not real-time detection) or relying solely on S3 Block Public Access (which prevents new public buckets but does not detect existing ones). Remember the memory tip: “Config checks the bucket, EventBridge sends the bucket.” This pairing ensures continuous, automated detection and alerting without manual polling, aligning with the exam’s focus on scalable security automation.
SCS-C02 Management and Security Governance Practice Question
This SCS-C02 practice question tests your understanding of management and security governance. 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 wants to automatically detect and notify about any S3 buckets that have public read access. Which combination of services should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS Config and Amazon EventBridge
AWS Config can evaluate S3 bucket public access using managed rules, and Amazon EventBridge can trigger notifications via SNS.
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.
✗
AWS CloudTrail and AWS Lambda
Why it's wrong here
CloudTrail logs access but does not evaluate public access configuration.
✓
AWS Config and Amazon EventBridge
Why this is correct
Config evaluates and sends events to EventBridge, which can trigger SNS.
Related concept
Static NAT maps one inside address to one outside address.
✗
AWS IAM Access Analyzer and Amazon CloudWatch
Why it's wrong here
Access Analyzer identifies external access but public read is a bucket policy, not trust.
✗
AWS Trusted Advisor and Amazon SES
Why it's wrong here
Trusted Advisor checks but does not automate detection and notification event-driven.
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.
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: AWS Config and Amazon EventBridge — AWS Config can evaluate S3 bucket public access using managed rules, and Amazon EventBridge can trigger notifications via SNS.
What should I do if I get this SCS-C02 question wrong?
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.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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