easyMultiple ChoiceObjective-mapped
220-1202 Practice Question: A customer complains that their iPhone's Wi-Fi…
A customer complains that their iPhone's Wi-Fi keeps disconnecting and reconnecting. They have already rebooted the phone and the router. Which of the following is the MOST likely cause?
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 phone's Wi-Fi profile is corrupted.
This scenario tests knowledge of common mobile Wi-Fi issues. After basic steps, forgetting and reconnecting to the network often resolves profile corruption or authentication problems.
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 SIM card is faulty.
Why it's wrong here
A SIM card's primary function is to authenticate a mobile device to a cellular network for services like voice calls, SMS, and mobile data. Wi-Fi connectivity, however, operates on a distinct radio frequency (802.11 standards) and network stack, entirely independent of cellular infrastructure. Therefore, a faulty SIM card would only impact cellular-dependent services, not the phone's ability to connect to or maintain a Wi-Fi connection.
- ✗
The Wi-Fi network password was changed recently.
Why it's wrong here
If the Wi-Fi network password were recently changed, the iPhone would fail to authenticate and connect to the network at all, rather than repeatedly connecting and then disconnecting. The device would continuously attempt to use the outdated credentials, resulting in persistent authentication errors or a prompt for the correct password. The symptom of intermittent disconnections implies successful initial connections, which contradicts a simple password mismatch.
- ✓
The phone's Wi-Fi profile is corrupted.
Why this is correct
A corrupted Wi-Fi profile stores incorrect or damaged configuration data, such as the SSID, security type, or password, preventing the device from maintaining a stable connection. This corruption can lead to intermittent disconnections as the phone struggles to properly authenticate or negotiate network parameters with the access point. Forgetting the network and re-establishing the connection forces the creation of a new, clean profile, often resolving these transient connectivity issues.
- ✗
The phone's operating system needs a full restore via iTunes.
Why it's wrong here
A full restore via iTunes reinstalls the entire iOS firmware, which addresses deep file-system corruption or boot-loop issues, not intermittent Wi-Fi disconnections caused by transient radio interference or DHCP lease conflicts. This option is tempting because iTunes restores can resolve persistent software faults, and would be correct if the phone failed to boot or exhibited kernel panics, but the stem describes a functional device with a specific connectivity symptom.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1202 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 220-1202 exam.