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220-1201 Practice Question: That their iPhone cannot send or receive MMS…
A user reports that their iPhone cannot send or receive MMS messages, but SMS works fine. They have enabled cellular data. What is the most likely missing configuration?
⚠ Common exam trap
The 220-1201 exam often tests the misconception that MMS relies on iMessage or that enabling cellular data alone is sufficient, when in fact MMS requires a specific APN configuration separate from general data APN settings.
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
✓
The MMS APN settings are incorrect or missing.
B is correct because MMS requires a properly configured APN (Access Point Name) to establish the data connection for sending and receiving multimedia content. Since SMS works (which uses the control channel, not data), but MMS fails despite cellular data being enabled, the most likely issue is that the MMS APN settings are incorrect or missing. Without the correct APN, the device cannot route MMS traffic through the carrier's multimedia messaging center.
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 phone's iMessage is disabled.
Why it's wrong here
iMessage is an Apple-proprietary messaging service that exclusively utilizes data (Wi-Fi or cellular) to send messages between Apple devices. Disabling iMessage only prevents the use of this specific service, forcing messages to other Apple users to fall back to SMS/MMS. Since the user can send SMS but not MMS, the issue lies with the carrier's multimedia messaging service, not Apple's data-based messaging platform.
- ✓
The MMS APN settings are incorrect or missing.
Why this is correct
Access Point Name (APN) settings are crucial configurations that define how a mobile device connects to the carrier's network for data services, including multimedia messaging. Unlike standard internet data or SMS, MMS often requires a separate, specific APN configuration, including details like the MMSC (Multimedia Messaging Service Center) address, MMS proxy, and port number. If these particular MMS APN settings are incorrect, incomplete, or missing, the device will be unable to properly route and deliver multimedia messages, even if regular SMS and cellular data are functional.
- ✗
The phone is in Airplane Mode.
Why it's wrong here
Airplane Mode is a device setting designed to disable all wireless communication capabilities, including cellular, Wi-Fi, and Bluetooth, to comply with airline regulations or conserve battery. If the iPhone were in Airplane Mode, it would be completely unable to send or receive any cellular-based messages, including standard SMS. The fact that the user can successfully send SMS messages directly contradicts the possibility of Airplane Mode being active.
- ✗
The recipient's phone does not support MMS.
Why it's wrong here
The problem description explicitly states that the iPhone cannot send MMS, indicating a sending-side issue rather than a receiving-side limitation. While it's theoretically possible for a very old or basic feature phone to lack MMS support, modern smartphones universally support MMS. More importantly, the sender's device configuration or network connection is preventing the message from even leaving the iPhone, which is distinct from a recipient's inability to process it.
Go deeper
Related to this question
Learn chapter
Mobile Device Types and Features
Key term
Route
A route is a path that data takes through a network from one device or network to another, determined by routing protocols and configured rules.
Key term
Access Point
An access point is a device that creates a wireless local area network, usually by connecting to a wired network and broadcasting a Wi-Fi signal for computers, phones, and tablets to join.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1201 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 220-1201 exam.