- A
Amazon Inspector and AWS Security Hub
Why wrong: Inspector scans for vulnerabilities; Security Hub aggregates findings; no auto-remediation.
- B
AWS WAF and Amazon Route 53
Why wrong: WAF is a web application firewall; Route 53 is DNS; neither deals with S3 bucket policies.
- C
AWS Config and AWS Lambda
Config evaluates rules and can invoke Lambda for auto-remediation.
- D
AWS CloudTrail and Amazon GuardDuty
Why wrong: CloudTrail logs API calls, GuardDuty detects threats; neither automates remediation.
Question 277 of 1,000
CCSP Cloud Security Operations Practice Question
This CCSP practice question tests your understanding of cloud security 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.
A cloud security team wants to automatically detect and remediate S3 buckets that are publicly accessible. Which combination of AWS services can achieve this?
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
✓
AWS Config and AWS Lambda
AWS Config continuously evaluates S3 bucket configurations against rules (e.g., s3-bucket-public-read-prohibited) and can trigger an AWS Lambda function via Amazon EventBridge when a non-compliant change is detected. The Lambda function then automatically applies a remediation action, such as removing the public access block or updating the bucket policy, achieving automated detection and remediation without manual intervention.
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.
- ✗
Amazon Inspector and AWS Security Hub
Why it's wrong here
Inspector scans for vulnerabilities; Security Hub aggregates findings; no auto-remediation.
- ✗
AWS WAF and Amazon Route 53
- ✓
AWS Config and AWS Lambda
Why this is correct
Config evaluates rules and can invoke Lambda for auto-remediation.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS CloudTrail and Amazon GuardDuty
Why it's wrong here
CloudTrail logs API calls, GuardDuty detects threats; neither automates remediation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between detection-only services (like Inspector, GuardDuty, CloudTrail) and services that can both detect and trigger automated remediation (Config + Lambda), leading candidates to pick a service that only detects but cannot remediate.
Detailed technical explanation
How to think about this question
Under the hood, AWS Config uses a managed rule (s3-bucket-public-read-prohibited) that evaluates the S3 bucket's public access settings by checking the bucket policy, ACLs, and block public access settings via the GetPublicAccessBlock and GetBucketPolicyStatus APIs. When a bucket becomes non-compliant, Config publishes a configuration item change to Amazon EventBridge, which invokes a Lambda function that can execute an AWS SDK call (e.g., put_public_access_block) to enforce a deny-all public access block. A real-world scenario is a multi-account environment where a developer accidentally removes the block public access setting; this setup automatically restores it within seconds, preventing data exposure.
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 security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
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 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 CCSP question test?
Cloud Security Operations — This question tests Cloud Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Config and AWS Lambda — AWS Config continuously evaluates S3 bucket configurations against rules (e.g., s3-bucket-public-read-prohibited) and can trigger an AWS Lambda function via Amazon EventBridge when a non-compliant change is detected. The Lambda function then automatically applies a remediation action, such as removing the public access block or updating the bucket policy, achieving automated detection and remediation without manual intervention.
What should I do if I get this CCSP 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.
About these practice questions
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Last reviewed: Jul 4, 2026
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.
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