The answer is that a RiskScore of 0 indicates the device has no detected threats. In Microsoft Defender XDR, the risk score is a dynamic, real-time numerical assessment derived from active threat signals, such as malware detections, suspicious behaviors, or active alerts; a score of zero means the platform has not identified any current security incidents or compromises on that endpoint. This concept is frequently tested on the Microsoft 365 Endpoint Administrator MD-102 exam, often as a trap where candidates confuse risk score with vulnerability score or device compliance status—remember that risk score reflects active threats, not potential weaknesses. A common memory tip is to think of risk score as a “threat thermometer”: zero means the device is running cool with no active fires, while any positive number signals ongoing risk requiring investigation.
MD-102 Protect devices Practice Question
This MD-102 practice question tests your understanding of protect devices. 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.
Exhibit
Refer to the exhibit.
Exhibit (KQL query from Microsoft Defender XDR):
DeviceInfo
| where Timestamp > ago(7d)
| where DeviceName contains "CONTOSO-LAPTOP"
| project Timestamp, DeviceName, OSPlatform, OSVersion, IsAzureADJoined, RiskScore
| order by Timestamp desc
Refer to the exhibit. You run this KQL query in Microsoft Defender XDR to investigate a device. The result shows RiskScore = 0. What does this indicate about the device?
Refer to the exhibit.
Exhibit (KQL query from Microsoft Defender XDR):
DeviceInfo
| where Timestamp > ago(7d)
| where DeviceName contains "CONTOSO-LAPTOP"
| project Timestamp, DeviceName, OSPlatform, OSVersion, IsAzureADJoined, RiskScore
| order by Timestamp desc
A
The risk score cannot be calculated for this device
Why wrong: 0 is a valid score.
B
The device is not enrolled in Defender for Endpoint
Why wrong: If not enrolled, the query would return no results.
C
The device is highly vulnerable
Why wrong: High vulnerability would have a high risk score.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The device has no detected threats
Option B is correct. RiskScore 0 means no risk detected. Option A is wrong because 0 does not indicate vulnerability. Option C is wrong because it is not unknown. Option D is wrong because risk score applies to devices.
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.
✗
The risk score cannot be calculated for this device
Why it's wrong here
0 is a valid score.
✗
The device is not enrolled in Defender for Endpoint
Why it's wrong here
If not enrolled, the query would return no results.
✗
The device is highly vulnerable
Why it's wrong here
High vulnerability would have a high risk score.
✓
The device has no detected threats
Why this is correct
RiskScore 0 means no risk.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MD-102 question in full detail.
Identify which MD-102 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Protect devices — This question tests Protect devices — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The device has no detected threats — Option B is correct. RiskScore 0 means no risk detected. Option A is wrong because 0 does not indicate vulnerability. Option C is wrong because it is not unknown. Option D is wrong because risk score applies to devices.
What should I do if I get this MD-102 question wrong?
Identify which MD-102 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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