The answer is that an MSI product code detection rule using a product code that does not match the installed app is the most likely cause. This happens because Intune compares the specified product code against the Windows Installer database; if the code is incorrect, missing, or from a different version of the application, the detection rule fails even though the app installed successfully. On the MD-102 exam, this scenario tests your understanding of how detection rules validate deployment status, and it often appears as a trap where you might overlook the exact match requirement for MSI GUIDs. Unlike file or registry detection, which rely on straightforward paths or keys, MSI detection is brittle because a single typo or mismatched version string causes false negatives. Remember the mnemonic: “MSI means Match the Specific Identifier” — always verify the product code from the actual installed app’s properties, not the deployment package.
MD-102 Manage applications Practice Question
This MD-102 practice question tests your understanding of manage applications. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
You deploy a Win32 app via Intune to Windows 10 devices. The app installs successfully, but the detection rule incorrectly reports the app as not installed, causing Intune to attempt reinstallation repeatedly. Which detection rule method is most likely causing this issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
MSI product code detection uses a product code that does not match the installed app
Option D is correct because if the MSI product code is used but the product code is wrong or missing, Intune will not detect the app. Option A is wrong because file existence detection is straightforward if path is correct. Option B is wrong because registry detection is reliable if key exists. Option C is wrong because custom script detection can work if script returns correct exit code.
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.
✓
MSI product code detection uses a product code that does not match the installed app
Why this is correct
Mismatched product code causes detection failure.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
File existence detection checks for a file that is installed by the app
Why it's wrong here
If file exists, detection should succeed.
✗
Registry detection checks for a registry key that is created by the app
Why it's wrong here
If key exists, detection should succeed.
✗
Custom script detection returns exit code 0 even if app is not present
Why it's wrong here
Exit code 0 typically indicates success, so detection would pass.
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 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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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.
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 MD-102 NAT questions on configuration and troubleshooting.
Manage applications — This question tests Manage applications — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: MSI product code detection uses a product code that does not match the installed app — Option D is correct because if the MSI product code is used but the product code is wrong or missing, Intune will not detect the app. Option A is wrong because file existence detection is straightforward if path is correct. Option B is wrong because registry detection is reliable if key exists. Option C is wrong because custom script detection can work if script returns correct exit code.
What should I do if I get this MD-102 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 MD-102 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. You need to deploy a custom Win32 app to Windows 10 devices. The app installation is silent and requires a reboot. You set the installation behavior to 'system' and the device restart behavior to 'Allow'. After deployment, users report that the app is installed but not working properly. What is the most likely cause?
medium
A.The app requires user interaction to complete setup
B.The detection rule is misconfigured
✓ C.The device was not restarted after installation
D.The app was not wrapped correctly with the Intune Win32 Content Prep Tool
Why C: When the installation behavior is 'system' and a reboot is required, setting device restart behavior to 'Allow' gives users the option to postpone the restart. If they postpone, the app may not function correctly until reboot. Option D addresses this.
Variation 2. You deploy a Win32 app via Intune to Windows 10 devices. The app installs successfully on some devices but fails on others with no error in the Intune console. The app logs show 'Access Denied' during installation. What should you check first?
hard
A.The device is not Microsoft Entra ID joined
B.The device has insufficient disk space
C.The app is not signed
✓ D.The installation context (user vs system) in the app deployment
Why D: If the app is configured to install in user context but requires admin privileges, it will fail. Changing to system context resolves this. Option A is correct.
Last reviewed: Jun 21, 2026
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This MD-102 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MD-102 exam.
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