This AZ-400 practice question tests your understanding of design and implement a source control strategy. 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 practices are recommended for effective source control in a GitHub monorepo? (Choose three.)
Store large binary files directly in the repository
Why wrong: Slows down clones.
Use branch protection rules to enforce CI checks
Maintains quality.
Use a single build definition for all projects
Why wrong: Not efficient.
Use code owners to automatically request reviewers
Ensures correct reviewers.
Use path filters to trigger only relevant CI workflows
Optimizes build times.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use branch protection rules to enforce CI checks
Options A, B, and E are correct. Option C is wrong because it reduces performance. Option D is wrong because it is not specific to monorepos.
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
For each option: why learners choose it and why it is or isn't the right answer here.
Store large binary files directly in the repository
Why it's wrong here
Slows down clones.
Use branch protection rules to enforce CI checks
Why this is correct
Maintains quality.
Related concept
Static NAT maps one inside address to one outside address.
Use a single build definition for all projects
Why it's wrong here
Not efficient.
Use code owners to automatically request reviewers
Why this is correct
Ensures correct reviewers.
Related concept
Static NAT maps one inside address to one outside address.
Use path filters to trigger only relevant CI workflows
Why this is correct
Optimizes build times.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
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
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.
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
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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 AZ-400 NAT questions on configuration and troubleshooting.
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FAQ
Design and implement a source control strategy — This question tests Design and implement a source control strategy — Static NAT maps one inside address to one outside address..
The correct answer is: Use branch protection rules to enforce CI checks — Options A, B, and E are correct. Option C is wrong because it reduces performance. Option D is wrong because it is not specific to monorepos.
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 AZ-400 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
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