MS-102 Practice Question: Manage security and threats by using Microsoft Defender XDR
This MS-102 practice question tests your understanding of manage security and threats by using microsoft defender xdr. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 administrator needs to block outbound network connections from a compromised Windows device to a known malicious IP address. The solution should be configured in Microsoft Defender for Endpoint and must work at the network layer, not relying on a user-installed client. Which feature should the administrator enable?
Why wrong: ASR rules block specific behaviors like script execution or ransomware, not general outbound IP connections.
B
Custom detection rules (advanced hunting)
Why wrong: Custom detection rules generate alerts based on queries but do not automatically block network connections.
C
Network protection
Network protection uses the Windows Defender Firewall to block outbound connections to malicious IPs and domains, as defined by Microsoft threat intelligence.
D
Web protection (web threat protection)
Why wrong: Web protection primarily blocks access to malicious websites and enforces web categories but does not handle outbound connections to arbitrary IP addresses.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Network protection
Option C, Network protection, is correct because it is a Microsoft Defender for Endpoint feature that blocks outbound connections to malicious IP addresses and domains at the network layer, using the Windows Filtering Platform (WFP) to enforce policies without requiring a user-installed client. This ensures the block applies system-wide, even if the device is compromised, as it operates before the TCP/IP stack processes the connection.
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.
✗
Attack surface reduction (ASR) rules
Why it's wrong here
ASR rules block specific behaviors like script execution or ransomware, not general outbound IP connections.
✗
Custom detection rules (advanced hunting)
Why it's wrong here
Custom detection rules generate alerts based on queries but do not automatically block network connections.
✓
Network protection
Why this is correct
Network protection uses the Windows Defender Firewall to block outbound connections to malicious IPs and domains, as defined by Microsoft threat intelligence.
Related concept
Read the scenario before looking for a memorised answer.
✗
Web protection (web threat protection)
Why it's wrong here
Web protection primarily blocks access to malicious websites and enforces web categories but does not handle outbound connections to arbitrary IP addresses.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Network protection with Web protection, mistakenly thinking Web protection can block IP-based outbound connections, when in fact Web protection only filters HTTP/HTTPS traffic based on URL reputation and does not operate at the network layer for arbitrary IP addresses.
Detailed technical explanation
How to think about this question
Network protection leverages the Windows Filtering Service (WFS) and the Windows Filtering Platform (WFP) to inspect and block outbound traffic at the network layer, intercepting connections before they reach the TCP/IP stack. This is distinct from host-based firewalls because it integrates with Defender for Endpoint's cloud intelligence to dynamically update block lists. In a real-world scenario, if a device is infected with a C2 beacon attempting to connect to a known malicious IP, Network protection can terminate the TCP SYN packet, preventing the handshake entirely.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-102 question in full detail.
Manage security and threats by using Microsoft Defender XDR — This question tests Manage security and threats by 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: Network protection — Option C, Network protection, is correct because it is a Microsoft Defender for Endpoint feature that blocks outbound connections to malicious IP addresses and domains at the network layer, using the Windows Filtering Platform (WFP) to enforce policies without requiring a user-installed client. This ensures the block applies system-wide, even if the device is compromised, as it operates before the TCP/IP stack processes the connection.
What should I do if I get this MS-102 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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Question Discussion
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