The answer is to review the alert details in Microsoft Defender for Cloud to identify the vulnerability and follow the remediation steps. This is correct because the alert itself is designed to be actionable, containing the affected resource, the specific vulnerability, and the recommended remediation steps, making validation and containment a single, informed workflow. On the SC-200 exam, this tests your understanding of the Defender for Cloud alert lifecycle, where the immediate priority is to triage the alert’s context rather than blindly patch or isolate, which could cause downtime or miss the root cause. A common trap is jumping to network isolation or patching without first reading the alert details, which may reveal the vulnerability is already mitigated or requires a configuration change, not a patch. Remember the mnemonic “Read Before React” — always open the alert to see the resource and remediation steps before taking any disruptive action.
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 Defender for Cloud to assess the security posture of Azure subscriptions. You receive an alert that a critical vulnerability exists on a virtual machine. What is the BEST immediate action to validate the alert and contain the threat?
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
✓
Review the alert details in Microsoft Defender for Cloud to identify the vulnerability and follow the remediation steps.
Option A is correct because the alert includes affected resources and remediation steps. Option B is wrong because applying a patch without validation may cause downtime. Option C is wrong because isolating the VM from the network is a containment step but not validation. Option D is wrong because contacting support is not immediate action.
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.
✗
Contact Microsoft support to request a vulnerability assessment.
Why it's wrong here
Support is not needed for immediate validation.
✗
Immediately apply the latest security patches to the VM using Azure Update Manager.
Why it's wrong here
Patching without understanding the alert may not address the specific vulnerability.
✗
Isolate the VM from the network by applying a network security group rule.
Why it's wrong here
Isolation is containment, not validation.
✓
Review the alert details in Microsoft Defender for Cloud to identify the vulnerability and follow the remediation steps.
Why this is correct
Alert details provide actionable information for validation and remediation.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
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: Review the alert details in Microsoft Defender for Cloud to identify the vulnerability and follow the remediation steps. — Option A is correct because the alert includes affected resources and remediation steps. Option B is wrong because applying a patch without validation may cause downtime. Option C is wrong because isolating the VM from the network is a containment step but not validation. Option D is wrong because contacting support is not immediate action.
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.
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?
Static NAT maps one inside address to one outside address.
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