The correct answer is to apply a policy with the 'Revoke session' action. This action immediately terminates the user's active session with the compromised account in Defender for Cloud Apps, forcing them to re-authenticate and effectively cutting off the attacker's current access to the sensitive SharePoint site. On the Microsoft Security Operations Analyst SC-200 exam, this scenario tests your understanding of granular remediation actions versus broader, disruptive controls; a common trap is choosing "Suspend user," which disables the account entirely and can block legitimate work, or "Block IP," which affects all users from that address. The key distinction is that "Revoke session" is a targeted, real-time response that stops the immediate threat without locking the user out permanently. Memory tip: think "Revoke = Re-authenticate" — it kills the current session, not the account.
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 company uses Microsoft Defender for Cloud Apps. You discover that a user's account is compromised and used to access a sensitive SharePoint site from an unfamiliar IP. You need to immediately revoke the user's session and force them to re-authenticate. Which action should you take?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Apply a policy with the 'Revoke session' action.
Option B is correct because the 'Revoke session' policy action in Defender for Cloud Apps terminates the user's current session and forces re-authentication. Option A (Suspend user) is too drastic and may disrupt legitimate access. Option C (Block IP) would block all users from that IP, which may not be desired. Option D (Notify user) is not immediate and does not stop the session.
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.
✗
Add the IP to the blocked IP addresses list.
Why it's wrong here
Blocking the IP may affect other users and is not targeted.
✗
Create a governance action to suspend the user.
Why it's wrong here
Suspending the user disables the account entirely, which is not necessary.
✗
Send a notification to the user to change their password.
Why it's wrong here
Notifications do not stop the current session.
✓
Apply a policy with the 'Revoke session' action.
Why this is correct
Revoking the session forces re-authentication and ends the current access.
Clue confirmation
The clue word "immediately / without restart" 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
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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: Apply a policy with the 'Revoke session' action. — Option B is correct because the 'Revoke session' policy action in Defender for Cloud Apps terminates the user's current session and forces re-authentication. Option A (Suspend user) is too drastic and may disrupt legitimate access. Option C (Block IP) would block all users from that IP, which may not be desired. Option D (Notify user) is not immediate and does not stop the session.
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: "immediately / without restart". Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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