The correct choice is to use AWS Systems Manager Parameter Store with secure strings, referencing them in CodePipeline via the parameter-store action. This solution meets the requirement for securing secrets in CI/CD because Parameter Store is a fully managed service that encrypts sensitive parameters at rest using AWS KMS, and the parameter-store action retrieves these values at runtime without ever exposing them in the source code or requiring custom encryption logic. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of native, low-overhead secret management within CI/CD pipelines—a common trap is overcomplicating the solution with AWS Secrets Manager or manual KMS encrypt/decrypt steps when Parameter Store’s secure strings and direct pipeline integration suffice. Remember the memory tip: “Parameter Store for pipeline lore—secure strings, no plaintext anymore.”
DOP-C02 Configuration Management and IaC Practice Question
This DOP-C02 practice question tests your understanding of configuration management and iac. 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 DevOps team uses AWS CodeCommit and AWS CodePipeline for CI/CD. They need to ensure that sensitive configuration parameters such as database passwords are not stored in plaintext in the source code repository. Which solution meets these requirements with minimal operational overhead?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS Systems Manager Parameter Store with secure strings, and reference them in the pipeline using parameter-store action.
Option D is correct because AWS Systems Manager Parameter Store with secure strings provides a native, fully managed service for storing sensitive configuration data like database passwords. By using the parameter-store action in CodePipeline, the pipeline can retrieve the secure parameter at runtime without exposing it in the source code or requiring manual encryption/decryption logic, minimizing operational overhead.
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.
✗
Store the parameters in a separate encrypted Git repository and use Git submodules.
Why it's wrong here
Encrypting the repository does not prevent exposure in logs or code.
✗
Use AWS KMS to encrypt the parameters and include the encrypted blob in the source code.
Why it's wrong here
Hardcoding with KMS still exposes the encrypted secret in code.
✗
Store the parameters in an S3 bucket with server-side encryption, and have the pipeline download them.
Why it's wrong here
S3 with SSE still stores the secret in plaintext in the code artifact.
✓
Use AWS Systems Manager Parameter Store with secure strings, and reference them in the pipeline using parameter-store action.
Why this is correct
Parameter Store securely stores secrets and integrates with CodePipeline.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think storing an encrypted blob in the repository (Option B) is acceptable because it is 'encrypted,' but the exam tests the principle that secrets should never be stored in the source code repository at all, even in encrypted form, due to key management and exposure risks.
Detailed technical explanation
How to think about this question
AWS Systems Manager Parameter Store supports secure strings that are encrypted using AWS KMS, and the parameter-store action in CodePipeline retrieves the parameter value during the pipeline execution, injecting it into environment variables or build commands without exposing it in logs. This approach leverages IAM policies to control access at the parameter level, and the parameter can be versioned to support rollbacks. In a real-world scenario, teams often combine this with AWS Secrets Manager for automatic rotation, but Parameter Store alone meets the requirement with lower cost and simpler setup.
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.
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.
Configuration Management and IaC — This question tests Configuration Management and IaC — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use AWS Systems Manager Parameter Store with secure strings, and reference them in the pipeline using parameter-store action. — Option D is correct because AWS Systems Manager Parameter Store with secure strings provides a native, fully managed service for storing sensitive configuration data like database passwords. By using the parameter-store action in CodePipeline, the pipeline can retrieve the secure parameter at runtime without exposing it in the source code or requiring manual encryption/decryption logic, minimizing operational overhead.
What should I do if I get this DOP-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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Question Discussion
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