- A
Amazon S3
Why wrong: S3 can store configuration files but lacks native versioning for individual parameters, built-in KMS integration per parameter, or the hierarchical naming convention Parameter Store provides.
- B
AWS Systems Manager Parameter Store
Parameter Store provides centralized, versioned storage for configuration data and secrets with IAM-based access control, KMS encryption for secure strings, and a hierarchical namespace.
- C
Amazon DynamoDB
Why wrong: DynamoDB can store configuration data but requires more application code to manage it — Parameter Store is purpose-built for this use case with native AWS service integrations.
- D
AWS CloudFormation
Why wrong: CloudFormation manages infrastructure provisioning — it's not a runtime configuration store for application parameters.
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. 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 company wants to store frequently changing configuration data and feature flags that their applications need to read at runtime without hard-coding values. Which AWS service provides secure, centralized configuration storage with version history?
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 Systems Manager Parameter Store
AWS Systems Manager Parameter Store is the correct choice because it provides a secure, centralized service for storing configuration data and feature flags, with built-in version history for each parameter. It allows applications to read configuration values at runtime via the AWS SDK or CLI without hard-coding, and supports encryption using AWS KMS for sensitive data.
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 S3
Why it's wrong here
S3 can store configuration files but lacks native versioning for individual parameters, built-in KMS integration per parameter, or the hierarchical naming convention Parameter Store provides.
- ✓
AWS Systems Manager Parameter Store
Why this is correct
Parameter Store provides centralized, versioned storage for configuration data and secrets with IAM-based access control, KMS encryption for secure strings, and a hierarchical namespace.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon DynamoDB
Why it's wrong here
DynamoDB can store configuration data but requires more application code to manage it — Parameter Store is purpose-built for this use case with native AWS service integrations.
- ✗
AWS CloudFormation
Why it's wrong here
CloudFormation manages infrastructure provisioning — it's not a runtime configuration store for application parameters.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Amazon S3's object versioning with configuration version history, but S3 lacks the centralized parameter management, secure runtime access patterns, and integration with AWS KMS that Parameter Store provides for frequently changing configuration data.
Detailed technical explanation
How to think about this question
Parameter Store supports two tiers: Standard (up to 10,000 parameters, 4 KB size, free) and Advanced (up to 100,000 parameters, 8 KB size, with policies like expiration and change notifications). Each parameter update increments the version number, and you can retrieve specific versions using the `--version` parameter in the AWS CLI or the `GetParameterHistory` API, enabling rollback of feature flags or configuration changes without redeploying code.
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.
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Systems Manager Parameter Store — AWS Systems Manager Parameter Store is the correct choice because it provides a secure, centralized service for storing configuration data and feature flags, with built-in version history for each parameter. It allows applications to read configuration values at runtime via the AWS SDK or CLI without hard-coding, and supports encryption using AWS KMS for sensitive data.
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.
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 →
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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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