220-1101 Mobile Devices Practice Question
A user reports that their Android smartphone will not send picture messages (MMS). Text messages (SMS) send and receive normally. The user has mobile data enabled and is within a strong signal area. Which of the following should the technician check FIRST?
⚠ Common exam trap
CompTIA often tests the distinction between SMS (signaling channel) and MMS (data channel), leading candidates to incorrectly suspect a general data connectivity issue when the real problem is a misconfigured APN.
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
✓
Verify the APN settings
MMS relies on specific APN settings to route multimedia content through the carrier's data network. Since SMS (which uses the signaling channel) works fine but MMS fails, the most likely cause is incorrect or missing APN parameters such as the MMSC URL, MMS proxy, or MMS port. Verifying and correcting the APN settings is the first logical step before more disruptive troubleshooting.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable and re-enable mobile data
Why it's wrong here
Since the user already has mobile data enabled and SMS works, toggling mobile data is unlikely to resolve a configuration issue. It might help if there was a temporary glitch, but the root cause is more likely settings related.
When this WOULD be correct
If a user reports that both SMS and MMS fail, or that no data services work, disabling and re-enabling mobile data could resolve a temporary data connectivity issue.
- ✓
Verify the APN settings
Why this is correct
The Access Point Name (APN) settings control MMS and data connectivity. An incorrect MMS server or proxy in the APN can prevent MMS from being sent even when SMS works. Checking and correcting these settings is the first step.
- ✗
Check the carrier's data limit
Why it's wrong here
Exceeding the data limit can throttle speeds but does not typically block MMS entirely. If the limit were exceeded, the user would likely see a notification, and SMS still works, making this less likely than an APN issue.
When this WOULD be correct
A user reports that all data services (browsing, streaming) have stopped working, but SMS/voice calls still function. The technician should first check the carrier's data limit to see if the user has exceeded their plan's data cap.
- ✗
Reset Wi-Fi, mobile & Bluetooth settings
Why it's wrong here
Resetting Wi-Fi, mobile & Bluetooth settings clears saved networks and paired devices but does not alter the APN (Access Point Name) configuration, which governs MMS server addresses and proxy settings. This option is tempting because it is a broad connectivity reset that resolves many Android network glitches, and it would be correct if the issue stemmed from corrupted Wi-Fi or Bluetooth profiles interfering with mobile data routing. However, since SMS works and mobile data is enabled, the specific MMS failure points to an APN misconfiguration, not a general connectivity reset.
When this WOULD be correct
A user reports that their smartphone cannot send or receive any messages (SMS and MMS) and also has intermittent Wi-Fi and Bluetooth connectivity issues. The technician should first reset network settings to resolve potential software conflicts affecting multiple radios.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 220-1101 exam frequently reuses these exact scenarios with slightly different constraints.
✓Verify the APN settingsCorrect answer▾
Why this is correct
The Access Point Name (APN) settings control MMS and data connectivity. An incorrect MMS server or proxy in the APN can prevent MMS from being sent even when SMS works. Checking and correcting these settings is the first step.
✗Disable and re-enable mobile dataWrong answer — click to see why▾
Why this is wrong here
MMS requires correct APN settings for data transmission; toggling mobile data is a generic troubleshooting step that does not address the specific MMS failure when SMS and data are already working.
★ When this WOULD be the correct answer
If a user reports that both SMS and MMS fail, or that no data services work, disabling and re-enabling mobile data could resolve a temporary data connectivity issue.
Why candidates choose this
Candidates may think that resetting data connectivity is a quick fix for any data-related issue, overlooking that MMS has specific configuration requirements beyond just having data enabled.
✗Check the carrier's data limitWrong answer — click to see why▾
Why this is wrong here
The user can send SMS and has mobile data enabled, indicating the data connection is active. Checking the carrier's data limit is premature because MMS failure is more commonly due to incorrect APN settings, not data cap exhaustion.
★ When this WOULD be the correct answer
A user reports that all data services (browsing, streaming) have stopped working, but SMS/voice calls still function. The technician should first check the carrier's data limit to see if the user has exceeded their plan's data cap.
Why candidates choose this
Candidates may assume MMS uses data and that hitting a data limit could block it, overlooking that MMS requires specific APN configuration and that SMS working suggests the account is active.
✗Reset Wi-Fi, mobile & Bluetooth settingsWrong answer — click to see why▾
Why this is wrong here
Resetting Wi-Fi, mobile & Bluetooth settings is a more drastic step that would erase saved networks and paired devices, and it does not specifically address MMS configuration issues like APN settings, which are the most common cause of MMS failures when SMS works.
★ When this WOULD be the correct answer
A user reports that their smartphone cannot send or receive any messages (SMS and MMS) and also has intermittent Wi-Fi and Bluetooth connectivity issues. The technician should first reset network settings to resolve potential software conflicts affecting multiple radios.
Why candidates choose this
Candidates may think a full network reset is a comprehensive fix for any connectivity problem, overlooking that the issue is isolated to MMS and that less disruptive steps like checking APN settings should be tried first.
Analysis generated from the official 220-1101blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Go deeper
Related to this question
About these practice questions
This 220-1101 question is part of Courseiva's 896-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1101 practice question is part of Courseiva's free CompTIA 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 220-1101 exam.