This 200-901 practice question tests your understanding of infrastructure and automation. 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 a CI/CD pipeline to deploy network configurations. They want to ensure that only authorized network engineers can trigger changes to production devices. Which integration is most appropriate?
Encrypt the Ansible vault password
Why wrong: This secures secrets but does not control who runs the pipeline.
Implement Role-Based Access Control (RBAC) on the CI/CD tool
RBAC enforces authorization for pipeline executions.
Use a separate staging environment
Why wrong: This is a deployment strategy, not access control.
Use a pre-commit hook in Git to validate YAML syntax
Why wrong: This validates syntax, not authorization.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Implement Role-Based Access Control (RBAC) on the CI/CD tool
Option B is correct because Role-Based Access Control (RBAC) on the CI/CD tool directly restricts which users or groups can trigger pipeline jobs that modify production network devices. This ensures that only authorized network engineers have the permissions to execute changes, aligning with the principle of least privilege in deployment pipelines.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Encrypt the Ansible vault password
Why it's wrong here
This secures secrets but does not control who runs the pipeline.
Implement Role-Based Access Control (RBAC) on the CI/CD tool
Why this is correct
RBAC enforces authorization for pipeline executions.
Related concept
Read the scenario before looking for a memorised answer.
Use a separate staging environment
Why it's wrong here
This is a deployment strategy, not access control.
Use a pre-commit hook in Git to validate YAML syntax
Why it's wrong here
This validates syntax, not authorization.
Common exam traps
The trap here is that candidates confuse technical controls (like encryption or syntax validation) with authorization controls, assuming that protecting secrets or validating code is equivalent to restricting who can trigger a deployment.
Detailed technical explanation
RBAC in CI/CD tools like Jenkins, GitLab CI, or Azure DevOps maps users or groups to specific roles (e.g., 'deployer', 'viewer') with granular permissions on pipeline resources. Under the hood, the CI/CD server evaluates access tokens or API keys against role assignments before executing any job, often using OAuth 2.0 or SAML for identity federation. In a real-world scenario, a misconfigured RBAC could allow a developer with 'maintainer' role to accidentally trigger a production rollout, emphasizing the need for strict role separation between development and production environments.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
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FAQ
Infrastructure and Automation — This question tests Infrastructure and Automation — Read the scenario before looking for a memorised answer..
The correct answer is: Implement Role-Based Access Control (RBAC) on the CI/CD tool — Option B is correct because Role-Based Access Control (RBAC) on the CI/CD tool directly restricts which users or groups can trigger pipeline jobs that modify production network devices. This ensures that only authorized network engineers have the permissions to execute changes, aligning with the principle of least privilege in deployment pipelines.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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