AZ-400 Develop a security and compliance plan Practice Question
This AZ-400 practice question tests your understanding of develop a security and compliance plan. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company uses Microsoft Defender for Cloud to assess the security posture of Azure Pipelines agents. They notice that self-hosted agents are flagged as having high-severity vulnerabilities. What is the recommended action to remediate these findings while minimizing downtime?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Apply the security updates recommended by Microsoft Defender for Cloud to the agent VMs.
Option B is correct because using Microsoft Defender for Cloud's recommendation to update the agent VM with the latest security patches is the standard remediation. Option A is wrong because switching to Microsoft-hosted agents may not meet compliance requirements and does not remediate existing vulnerabilities. Option C is wrong because disabling Defender for Cloud would remove visibility. Option D is wrong because uninstalling agents is not a remediation.
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.
✗
Disable Microsoft Defender for Cloud for the agent pool.
Why it's wrong here
This hides the issue but does not fix it.
✗
Uninstall the self-hosted agents and use only Microsoft-hosted agents.
Why it's wrong here
This is an extreme measure that may cause downtime and does not address the root cause.
✓
Apply the security updates recommended by Microsoft Defender for Cloud to the agent VMs.
Why this is correct
This directly remediates the vulnerabilities on the self-hosted agents.
Related concept
Static NAT maps one inside address to one outside address.
✗
Replace all self-hosted agents with Microsoft-hosted agents.
Why it's wrong here
This may not be feasible due to compliance or network requirements, and it does not fix the existing vulnerabilities.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-400 question in full detail.
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.
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..
What is the correct answer to this question?
The correct answer is: Apply the security updates recommended by Microsoft Defender for Cloud to the agent VMs. — Option B is correct because using Microsoft Defender for Cloud's recommendation to update the agent VM with the latest security patches is the standard remediation. Option A is wrong because switching to Microsoft-hosted agents may not meet compliance requirements and does not remediate existing vulnerabilities. Option C is wrong because disabling Defender for Cloud would remove visibility. Option D is wrong because uninstalling agents is not a remediation.
What should I do if I get this AZ-400 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 AZ-400 NAT questions on configuration and troubleshooting.
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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