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Mitigate threats using Microsoft Defender XDRhardMultiple ChoiceObjective-mapped

SC-200 Mitigate threats using Microsoft Defender XDR Practice Question

This SC-200 practice question tests your understanding of mitigate threats using microsoft defender xdr. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 security analyst is using Microsoft 365 Defender advanced hunting to investigate potential lateral movement. The analyst has identified a compromised device (DeviceA) and wants to find all other devices that initiated a remote desktop connection from DeviceA to other devices in the last 24 hours. Which table and query approach should the analyst use?

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Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Query DeviceNetworkEvents for events from DeviceA with RemotePort 3389, then join with DeviceInfo to get target device names.

Option A is correct because DeviceNetworkEvents logs network connections, including outbound RDP traffic (port 3389). By filtering for events from DeviceA with RemotePort 3389, the analyst captures all RDP connections initiated by DeviceA. Joining with DeviceInfo resolves the target IP addresses to device names, providing a complete list of devices that received an RDP connection from DeviceA in the last 24 hours.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Query DeviceNetworkEvents for events from DeviceA with RemotePort 3389, then join with DeviceInfo to get target device names.

    Why this is correct

    DeviceNetworkEvents captures network connections including destination IP and port. RemoteDesktop connections typically use port 3389. From the IP, the analyst can identify target devices via DeviceInfo.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Query DeviceLogonEvents for LogonType 10 (RemoteInteractive), filtering by initiating device.

    Why it's wrong here

    DeviceLogonEvents logs successful interactive logons, but the initiating device is not the device where the connection came from; it is the target device. This query would show who logged into DeviceA, not connections from DeviceA.

  • Query IdentityLogonEvents to find logons associated with DeviceA.

    Why it's wrong here

    IdentityLogonEvents is for Microsoft Entra ID logons, not RDP network connections.

  • Query EmailEvents to find emails sent from DeviceA that contain RDP configuration files.

    Why it's wrong here

    EmailEvents does not contain network connection data and is not useful for finding RDP connections.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse 'initiating an RDP connection' (network-level outbound connection) with 'successful RDP logon' (authentication event on the target), leading them to incorrectly choose DeviceLogonEvents with LogonType 10 instead of DeviceNetworkEvents.

Trap categories for this question

  • Command / output trap

    DeviceLogonEvents logs successful interactive logons, but the initiating device is not the device where the connection came from; it is the target device. This query would show who logged into DeviceA, not connections from DeviceA.

Detailed technical explanation

How to think about this question

RDP uses TCP port 3389 by default, and DeviceNetworkEvents captures outbound connections at the network layer, including the source and destination IPs and ports. The join with DeviceInfo is essential because DeviceNetworkEvents stores target IP addresses, not device names; DeviceInfo maps IP addresses to device names based on the most recent network profile. In a real-world scenario, an attacker might use RDP to move laterally from a compromised device, and this query directly surfaces those connections, even if the RDP session was not successful (e.g., connection attempt blocked by firewall).

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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.

What to study next

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FAQ

Questions learners often ask

What does this SC-200 question test?

Mitigate threats using Microsoft Defender XDR — This question tests Mitigate threats using Microsoft Defender XDR — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Query DeviceNetworkEvents for events from DeviceA with RemotePort 3389, then join with DeviceInfo to get target device names. — Option A is correct because DeviceNetworkEvents logs network connections, including outbound RDP traffic (port 3389). By filtering for events from DeviceA with RemotePort 3389, the analyst captures all RDP connections initiated by DeviceA. Joining with DeviceInfo resolves the target IP addresses to device names, providing a complete list of devices that received an RDP connection from DeviceA in the last 24 hours.

What should I do if I get this SC-200 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 2026

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