- A
AWS Systems Manager Parameter Store
Why wrong: Parameter Store can store secrets but lacks native automatic rotation for database credentials — Secrets Manager is purpose-built with native rotation for RDS and other databases.
- B
Amazon S3 with encryption
Why wrong: Storing credentials in S3 requires custom rotation logic, lacks per-secret access control, and is not designed for secrets management.
- C
AWS Secrets Manager
Secrets Manager stores secrets securely, rotates them automatically on a configurable schedule with native RDS integration, and provides versioned access so applications always get the current secret.
- D
AWS KMS
Why wrong: KMS manages cryptographic keys used to encrypt secrets — it doesn't store application-level secrets or provide rotation for database credentials.
CLF-C02 Security and Compliance Practice Question
This CLF-C02 practice question tests your understanding of security and compliance. 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 needs to store their application's database connection strings and automatically rotate them every 30 days. Which AWS service handles secret storage with automatic rotation built in?
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 Secrets Manager
AWS Secrets Manager is the correct service because it is specifically designed to securely store secrets such as database connection strings, API keys, and passwords, and it provides built-in automatic rotation of secrets at a configurable interval (e.g., every 30 days) using AWS Lambda. This eliminates the need for custom rotation logic and integrates natively with supported databases like Amazon RDS, Redshift, and DocumentDB.
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.
- ✗
AWS Systems Manager Parameter Store
Why it's wrong here
Parameter Store can store secrets but lacks native automatic rotation for database credentials — Secrets Manager is purpose-built with native rotation for RDS and other databases.
- ✗
Amazon S3 with encryption
Why it's wrong here
Storing credentials in S3 requires custom rotation logic, lacks per-secret access control, and is not designed for secrets management.
- ✓
AWS Secrets Manager
Why this is correct
Secrets Manager stores secrets securely, rotates them automatically on a configurable schedule with native RDS integration, and provides versioned access so applications always get the current secret.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS KMS
Why it's wrong here
KMS manages cryptographic keys used to encrypt secrets — it doesn't store application-level secrets or provide rotation for database credentials.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Systems Manager Parameter Store (which can store secrets but lacks automatic rotation) with AWS Secrets Manager, leading them to choose Parameter Store when the question explicitly requires built-in rotation.
Detailed technical explanation
How to think about this question
AWS Secrets Manager uses an attached Lambda rotation function that follows a four-phase rotation process (create secret, set secret, test secret, finish secret) to ensure zero downtime during rotation. The rotation interval is defined in the secret's configuration and can be set to any value between 1 and 365 days, with 30 days being a common compliance requirement. Under the hood, Secrets Manager stores secrets encrypted with a KMS key and integrates with AWS CloudTrail to log all secret access and rotation events for auditing.
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.
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.
- →
Security and Compliance — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Secrets Manager — AWS Secrets Manager is the correct service because it is specifically designed to securely store secrets such as database connection strings, API keys, and passwords, and it provides built-in automatic rotation of secrets at a configurable interval (e.g., every 30 days) using AWS Lambda. This eliminates the need for custom rotation logic and integrates natively with supported databases like Amazon RDS, Redshift, and DocumentDB.
What should I do if I get this CLF-C02 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.
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Last reviewed: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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