This AZ-400 practice question tests your understanding of develop a security and compliance plan. 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.
Your organization requires that all code changes be signed using a valid code signing certificate before they can be merged. Which feature in GitHub should you enable to enforce this?
Dependabot.
Why wrong: Dependabot automates dependency updates, not signature enforcement.
Commit signature verification.
This requires all commits to be signed with a verified key.
Code scanning.
Why wrong: Code scanning finds vulnerabilities, not signature enforcement.
Secret scanning.
Why wrong: Secret scanning detects secrets in code, not signature enforcement.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Commit signature verification.
Option A is correct because commit signature verification in GitHub enforces that commits are signed with a verified GPG or S/MIME key. Option B is wrong because secret scanning detects secrets, not signature enforcement. Option C is wrong because Dependabot handles dependency updates. Option D is wrong because code scanning analyzes code for vulnerabilities.
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.
Dependabot.
Why it's wrong here
Dependabot automates dependency updates, not signature enforcement.
Commit signature verification.
Why this is correct
This requires all commits to be signed with a verified key.
Related concept
Static NAT maps one inside address to one outside address.
Code scanning.
Why it's wrong here
Code scanning finds vulnerabilities, not signature enforcement.
Secret scanning.
Why it's wrong here
Secret scanning detects secrets in code, not signature enforcement.
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
Develop a security and compliance plan — This question tests Develop a security and compliance plan — Static NAT maps one inside address to one outside address..
The correct answer is: Commit signature verification. — Option A is correct because commit signature verification in GitHub enforces that commits are signed with a verified GPG or S/MIME key. Option B is wrong because secret scanning detects secrets, not signature enforcement. Option C is wrong because Dependabot handles dependency updates. Option D is wrong because code scanning analyzes code for vulnerabilities.
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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