SC-200 Respond to security incidents Practice Question
This SC-200 practice question tests your understanding of respond to security incidents. 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.
Your organization uses Microsoft Sentinel and Microsoft Defender for Cloud. You receive an alert from Defender for Cloud that a virtual machine has a high severity vulnerability: 'CVE-2023-XXXX' with a CVSS score of 9.8. The virtual machine is running a critical application for the finance department. You need to remediate the vulnerability as quickly as possible while minimizing downtime. The application vendor has not yet released a patch but has provided a workaround. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement the workaround provided by the vendor and create a custom remediation task in Defender for Cloud to track the issue.
Option C is correct because applying the vendor-provided workaround reduces the risk while waiting for a patch. Option A is wrong because shutting down the VM causes downtime. Option B is wrong because network isolation may not be sufficient. Option D is wrong because ignoring the alert is not acceptable.
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.
✗
Dismiss the alert as a false positive because no patch is available.
Why it's wrong here
Dismissing the alert ignores the vulnerability.
✗
Shut down the virtual machine until a patch is available.
Why it's wrong here
Shutting down causes significant downtime.
✓
Implement the workaround provided by the vendor and create a custom remediation task in Defender for Cloud to track the issue.
Why this is correct
Workaround reduces risk while minimizing downtime.
Related concept
Static NAT maps one inside address to one outside address.
✗
Apply a network security group to block all inbound traffic to the VM.
Why it's wrong here
Blocking inbound traffic may affect the application functionality.
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 SC-200 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 SC-200 NAT questions on configuration and troubleshooting.
Respond to security incidents — This question tests Respond to security incidents — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Implement the workaround provided by the vendor and create a custom remediation task in Defender for Cloud to track the issue. — Option C is correct because applying the vendor-provided workaround reduces the risk while waiting for a patch. Option A is wrong because shutting down the VM causes downtime. Option B is wrong because network isolation may not be sufficient. Option D is wrong because ignoring the alert is not acceptable.
What should I do if I get this SC-200 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 SC-200 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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