A multinational company uses a hybrid infrastructure with on-premises Active Directory and Azure resources. They have deployed Microsoft Defender for Cloud to protect their Azure workloads. They now want to extend threat detection to their on-premises Active Directory by collecting security events from domain controllers to detect attacks like Golden Ticket, DCSync, and malicious Kerberos activity. The solution should integrate with Microsoft Sentinel for automated response. Which security solution should they deploy on the on-premises domain controllers?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
Distractor review
Microsoft Defender for Cloud
Defender for Cloud secures cloud workloads, not on-premises Active Directory domain controllers directly.
Distractor review
Microsoft Defender for Endpoint
While Defender for Endpoint can be installed on servers, it focuses on endpoint threats, not specialized AD attack detection like Golden Ticket.
Best answer
Microsoft Defender for Identity
Defender for Identity is purpose-built for on-prem AD threat detection, capturing domain controller events to detect Kerberos attacks and privilege escalation.
Distractor review
Microsoft Sentinel
Sentinel is a cloud-native SIEM that aggregates alerts, not a sensor that directly collects events from domain controllers.
Common exam trap
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.
Technical deep dive
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.
Related practice questions
Related SC-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A company must retain all customer contracts for 10 years to comply with industry regulations. After 10 years, the contracts must be permanently deleted. Which Microsoft Purview solution should be used to automate this process?
Question 2
A company uses a cloud-based SaaS (Software as a Service) application for customer relationship management. According to the shared responsibility model, which security responsibility is primarily handled by the customer?
Question 3
A company runs a mix of on-premises servers and Azure virtual machines. They deploy Microsoft Defender for Endpoint on all servers. The security team wants to create custom queries to hunt for a specific attack pattern that involves a sequence of events across multiple machines, such as a PowerShell script being downloaded and then executed on several servers. They need to write their own detection rules based on advanced hunting data. Which Microsoft 365 Defender capability should they use?
Question 4
A company runs a consumer-facing e-commerce website and wants to allow customers to sign in using their existing social media accounts such as Google, Facebook, or LinkedIn. Which Microsoft Entra ID solution should they implement?
Question 5
A company has a hybrid identity environment with Active Directory synchronizing to Microsoft Entra ID. They want users to be able to reset their own on-premises passwords via the cloud SSPR portal. What is the minimum license required for this capability?
Question 6
A company uses a cloud-based Customer Relationship Management (CRM) system that is delivered as Software-as-a-Service (SaaS). According to the shared responsibility model, which security responsibility is primarily handled by the customer?
FAQ
Questions learners often ask
What does this SC-900 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Microsoft Defender for Identity — Microsoft Defender for Identity is designed to protect on-premises Active Directory by monitoring domain controllers and analyzing activities to detect advanced attacks like Golden Ticket, DCSync, and Kerberos abuse. It can send alerts to Microsoft Sentinel for automated response. Microsoft Defender for Cloud focuses on cloud workloads, not on-prem AD. Microsoft Defender for Endpoint protects endpoints but does not specialize in AD security events. Microsoft Sentinel is a SIEM that ingests data from various sources, but it is not the sensor deployed on domain controllers; the sensor is Defender for Identity.
What should I do if I get this SC-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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