CCSP Cloud Security Operations Practice Question
An organization is implementing automated remediation for common cloud security misconfigurations using AWS Config and Lambda. Which THREE misconfigurations can be automatically remediated using this approach?
⚠ Common exam trap
Automated remediation is most suitable for deterministic fixes that do not require manual intervention or cause downtime, such as applying bucket policies or modifying security group rules, as opposed to changes that affect instance state (e.g., instance type modification) or require manual review (e.g., default security group modifications).
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
✓
S3 bucket with public read access
AWS Config can evaluate S3 bucket public read access against a managed rule (s3-bucket-public-read-prohibited) and trigger a Lambda function to apply a bucket policy that blocks public access. This is a common automated remediation pattern because the fix is deterministic and can be applied via the AWS SDK without manual intervention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
S3 bucket with public read access
Why this is correct
A Lambda can modify the bucket policy to remove public access.
- ✓
EBS volume without encryption
Why this is correct
Lambda can create an encrypted snapshot and replace the volume.
- ✗
EC2 instance type not compliant with corporate standard
Why it's wrong here
Automated remediation of instance type is complex and rarely done automatically.
- ✗
VPC with default security group allowing all traffic
Why it's wrong here
While possible, default SG changes are riskier and less commonly automated.
- ✓
Security group allowing SSH from 0.0.0.0/0
Why this is correct
Lambda can revoke the inbound rule to restrict access.
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 |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.