200-901 Infrastructure and Automation Practice Question
This 200-901 practice question tests your understanding of infrastructure and automation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which THREE are common best practices for implementing CI/CD in network automation?
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
✓
Use version control for all automation scripts and playbooks
Option B is correct because version control (e.g., Git) is a fundamental CI/CD best practice: it tracks changes, enables rollbacks, and supports collaboration on automation scripts and playbooks. Without version control, you lose auditability and the ability to reliably reproduce network states, which violates the principle of infrastructure as code.
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.
✗
Perform manual testing after every deployment
Why it's wrong here
CI/CD emphasizes automated testing, not manual.
✓
Use version control for all automation scripts and playbooks
Why this is correct
Version control is essential for tracking changes and collaboration.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Treat infrastructure configurations as code
Why this is correct
IaC is a fundamental principle of automation.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Implement automated unit and integration tests
Why this is correct
Automated tests are a key part of CI/CD pipelines.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Store credentials and secrets in code repositories
Why it's wrong here
Secrets should be stored securely, not in code repositories.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between 'automation' and 'CI/CD best practices'—candidates may confuse manual testing (Option A) as a safety net, but the exam expects you to recognize that CI/CD relies on automated testing, not manual steps.
Detailed technical explanation
How to think about this question
In network automation, CI/CD pipelines typically use tools like Jenkins or GitLab CI to trigger automated tests (e.g., pyATS for network validation) against a staging environment before promoting changes to production. Under the hood, treating configurations as code (Option C) means storing them in YAML/JSON and applying them via idempotent tools like Ansible or NAPALM, ensuring consistency. A real-world scenario: a misconfigured BGP policy pushed via a CI/CD pipeline can be caught by an automated integration test that verifies route propagation, preventing an outage.
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 practitioner preparing for the 200-901 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
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.
Infrastructure and Automation — This question tests Infrastructure and Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use version control for all automation scripts and playbooks — Option B is correct because version control (e.g., Git) is a fundamental CI/CD best practice: it tracks changes, enables rollbacks, and supports collaboration on automation scripts and playbooks. Without version control, you lose auditability and the ability to reliably reproduce network states, which violates the principle of infrastructure as code.
What should I do if I get this 200-901 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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?
Read the scenario before looking for a memorised answer.
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Question Discussion
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