The answer is an API level mismatch, meaning the app requires a specific Android API level that is not present on the deployed devices. This is the most likely cause when an Android app crashes immediately after MDM deployment, because the developer’s test device likely runs a newer OS version than the company’s fleet. The app’s manifest declares a minimum SDK version, and if the deployed devices run an older Android version, the app lacks the necessary system APIs and will crash on launch. On the CompTIA A+ Core 2 220-1202 exam, this scenario tests your understanding of software compatibility and deployment troubleshooting—a common trap is assuming the app is buggy rather than checking OS version requirements. Remember the mnemonic “API = App Platform Incompatibility” to link crashes after MDM push to missing API levels.
220-1102 Mobile OS and App Troubleshooting Practice Question
This 220-1202 practice question tests your understanding of mobile os and app troubleshooting. 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 company deploys a custom app via MDM to Android devices. Users report that the app crashes immediately upon launch. The app works fine on the developer's test device. What is the most likely cause?
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.
Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The app requires a specific Android API level that is not present on the deployed devices.
App crashes on deployment often stem from missing dependencies or incompatible API levels. The most common cause is that the target devices are running an older Android version than the app's minimum SDK. The technician should check the app's manifest requirements against the device OS version.
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.
✗
The MDM profile is corrupt and needs to be re-pushed.
Why it's wrong here
A corrupt MDM profile would likely prevent installation entirely, not cause the app to crash on launch.
✓
The app requires a specific Android API level that is not present on the deployed devices.
Why this is correct
If the app targets a higher API level than the device's OS, it will crash on launch due to missing system features.
Clue confirmation
The clue words "most likely", "immediately / without restart" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The devices have insufficient storage space.
Why it's wrong here
Insufficient storage would cause an installation failure, not a crash after successful installation.
✗
The app is not signed with the correct enterprise certificate.
Why it's wrong here
An incorrect signature would prevent installation entirely, not allow installation but crash on launch.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1202 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 220-1202 NAT questions on configuration and troubleshooting.
Mobile OS and App Troubleshooting — This question tests Mobile OS and App Troubleshooting — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The app requires a specific Android API level that is not present on the deployed devices. — App crashes on deployment often stem from missing dependencies or incompatible API levels. The most common cause is that the target devices are running an older Android version than the app's minimum SDK. The technician should check the app's manifest requirements against the device OS version.
What should I do if I get this 220-1202 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 220-1202 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely", "immediately / without restart". 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.
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