DOP-C02 Configuration Management and IaC Practice Question
This DOP-C02 practice question tests your understanding of configuration management and iac. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 engineer is designing a CI/CD pipeline for a microservices application. The team wants to ensure that infrastructure changes are reviewed and approved before deployment. The code is stored in AWS CodeCommit, and the pipeline uses AWS CodePipeline and AWS CloudFormation. What is the BEST way to implement an approval process for infrastructure changes?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add a manual approval step in CodePipeline between the build and deploy stages.
Option C is correct because CodePipeline supports manual approval actions that can be inserted between stages. Option A is wrong because CodeCommit approval rules only apply to code merges, not pipeline execution. Option B is wrong because IAM policies cannot create approval gates in the pipeline. Option D is wrong because CodeBuild does not have native approval capabilities.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use CodeCommit approval rules to require a pull request before any change is merged.
Why it's wrong here
A: This only controls code merges, not the deployment of infrastructure.
✗
Configure IAM policies to require MFA before any CloudFormation stack update.
Why it's wrong here
B: IAM policies can enforce MFA but do not provide a review/approval workflow.
✗
Use CodeBuild to run a script that sends an approval request via Amazon SNS and waits for a response.
Why it's wrong here
D: This is a custom solution that is less integrated and harder to manage than CodePipeline's built-in approval.
✓
Add a manual approval step in CodePipeline between the build and deploy stages.
Why this is correct
C: Manual approval actions in CodePipeline allow a reviewer to approve or reject before deployment.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DOP-C02 NAT questions on configuration and troubleshooting.
Configuration Management and IaC — This question tests Configuration Management and IaC — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Add a manual approval step in CodePipeline between the build and deploy stages. — Option C is correct because CodePipeline supports manual approval actions that can be inserted between stages. Option A is wrong because CodeCommit approval rules only apply to code merges, not pipeline execution. Option B is wrong because IAM policies cannot create approval gates in the pipeline. Option D is wrong because CodeBuild does not have native approval capabilities.
What should I do if I get this DOP-C02 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DOP-C02 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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