- A
Verify that the SIM card is not locked to the home carrier.
Why wrong: SIM lock prevents using other carriers, but the user has an international roaming plan, so the SIM should work with partner networks.
- B
Check if the device's date and time are set correctly.
Why wrong: Incorrect date/time can affect network authentication, but it's less likely to be the primary cause of no data after landing.
- C
Ensure that the device's data roaming setting is enabled.
Data roaming must be turned on to use cellular data on foreign networks; it's often disabled by default to prevent charges.
- D
Reset the device's network settings to default.
Why wrong: Resetting network settings is a more drastic step and should be done after checking simpler settings like data roaming.
Smartphone Cellular Data Not Working After International Travel: Enable Data Roaming
This 220-1201 practice question tests your understanding of mobile device network connectivity. 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 user is traveling internationally and complains that their smartphone's cellular data stopped working after landing. They have an international roaming plan activated. What should the technician check first to restore data connectivity?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"first"Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Quick Answer
The answer is to ensure that the device’s data roaming setting is enabled. When a smartphone connects to a foreign network, the device must be explicitly configured to allow data transmission outside its home carrier’s coverage area; without this setting toggled on, the phone will block all cellular data even if an international roaming plan is active. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of mobile device connectivity troubleshooting, often appearing as a distractor where candidates mistakenly check APN settings or airplane mode first. The common trap is assuming a valid roaming plan alone guarantees data—remember that the software toggle is a separate prerequisite. A helpful memory tip: “Roam to roam” — you must enable roaming in settings before you can roam on data.
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
Ensure that the device's data roaming setting is enabled.
When traveling internationally, cellular data requires the device's data roaming setting to be enabled to connect to foreign networks. Even with an active international roaming plan, the smartphone will not automatically use data on a visited network unless this setting is turned on. This is a standard requirement across GSM and LTE networks, as data roaming is disabled by default to prevent unexpected charges.
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.
- ✗
Verify that the SIM card is not locked to the home carrier.
Why it's wrong here
SIM lock prevents using other carriers, but the user has an international roaming plan, so the SIM should work with partner networks.
- ✗
Check if the device's date and time are set correctly.
Why it's wrong here
Incorrect date/time can affect network authentication, but it's less likely to be the primary cause of no data after landing.
- ✓
Ensure that the device's data roaming setting is enabled.
Why this is correct
Data roaming must be turned on to use cellular data on foreign networks; it's often disabled by default to prevent charges.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Reset the device's network settings to default.
Why it's wrong here
Resetting network settings is a more drastic step and should be done after checking simpler settings like data roaming.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The 220-1201 exam often tests the distinction between having a roaming plan (provisioning) and actually enabling the data roaming setting on the device (configuration), leading candidates to incorrectly assume the plan alone is sufficient.
Detailed technical explanation
How to think about this question
Data roaming relies on the device's APN (Access Point Name) configuration and the ability to attach to a visited Public Land Mobile Network (VPLMN). When data roaming is disabled, the device's modem will not send a PDP context activation request to the visited network, effectively blocking all packet-switched data. In some carrier implementations, even with a roaming plan, the network may require the device to explicitly request data services via the roaming setting before granting an IP address.
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.
TExam Day Tips
- 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 practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Mobile Device Network Connectivity — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Mobile Device Network Connectivity — This question tests Mobile Device Network Connectivity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Ensure that the device's data roaming setting is enabled. — When traveling internationally, cellular data requires the device's data roaming setting to be enabled to connect to foreign networks. Even with an active international roaming plan, the smartphone will not automatically use data on a visited network unless this setting is turned on. This is a standard requirement across GSM and LTE networks, as data roaming is disabled by default to prevent unexpected charges.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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.
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