220-1101 Mobile Devices Practice Test 8 — 15 Questions

Question 1

A user has an old iPhone with a cracked screen that is still fully functional and responsive. The user wants to transfer all data, settings, and apps to a brand new iPhone as quickly and easily as possible without using a computer or internet backup. Both iPhones are running the latest iOS version and are placed close together. Which of the following methods should the user choose?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Use Apple Quick Start to migrate directly from the old iPhone to the new one. Apple Quick Start uses a direct peer-to-peer Wi-Fi connection (and optionally a wired connection via Lightning-to-USB adapter) to transfer all data, settings, and apps from the old iPhone to the new one without requiring a computer or internet backup. Since both devices are running the latest iOS and are placed close together, this method meets the user's requirement for a fast, computer-free, and internet-free migration.

Answer

Perform an iCloud backup on the old phone and restore from that backup on the new phone

Answer

Connect the old iPhone to a Mac and use Finder to create a backup, then restore that backup on the new iPhone

Answer

Use a third-party app to copy contacts and photos to the new phone

Question 2

A user reports that their Android smartphone's battery drains much faster than usual after a recent system update. The phone is two years old and has been working normally until now. The user has already restarted the device. Which of the following should the technician recommend FIRST?

Accepted Answer

Check for updates to installed apps. After a system update, app compatibility issues or background processes can cause excessive battery drain. Checking for app updates ensures that apps are optimized for the new OS version, as outdated apps may use more CPU or keep the device awake unnecessarily. This is the least invasive and most logical first step before considering hardware replacement or disabling core features.

Answer

Perform a factory reset

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Replace the battery

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Disable location services

Question 3

A user reports that their Android smartphone's battery drains very quickly after a recent app update. The user has already checked battery usage statistics and found that no app is using an unusually high amount of power. The phone is less than a year old. Which of the following should the technician recommend FIRST?

Accepted Answer

Boot the phone into safe mode and observe battery life.. Safe mode disables all third-party applications, allowing the technician to determine if a recently updated app is causing the battery drain without interference from other user-installed software. Since the battery usage statistics showed no single app consuming excessive power, the issue could be a cumulative effect or a background process that safe mode isolates. This is the least invasive and most targeted first step before considering more drastic measures like a factory reset.

Answer

Perform a factory reset.

Answer

Replace the battery.

Answer

Update the operating system to the latest version.

Question 4

A user reports that their Android smartphone's touchscreen is unresponsive. The user performed a factory reset, but the problem persists. The technician notices that the screen has several deep scratches but no cracks. Which of the following is the MOST likely cause?

Accepted Answer

Failed digitizer. The digitizer is the component responsible for detecting touch input on a smartphone screen. Deep scratches can physically damage the digitizer's conductive layer, causing unresponsiveness even though the display (LCD) itself may still function. A factory reset cannot repair physical damage, so the problem persists, confirming a hardware failure in the digitizer.

Answer

Corrupted firmware

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Dead pixels

Answer

Damaged LCD

Question 5

A user reports that their Bluetooth headphones no longer connect to their smartphone after an operating system update. The headphones work normally when paired with a different smartphone. Other Bluetooth devices, such as a smartwatch, still connect to the user's phone without issues. Which of the following should the user try FIRST?

Accepted Answer

Forget the device and re-pair it. The most common cause of Bluetooth connectivity failure after an OS update is a corrupted or mismatched pairing profile. Forgetting the device removes the old profile from the smartphone's Bluetooth stack, forcing a fresh pairing handshake that re-establishes the correct encryption keys and service discovery. This is the first-line troubleshooting step before more invasive or time-consuming actions.

Answer

Reboot the smartphone

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Reset network settings on the smartphone

Answer

Update the firmware on the Bluetooth headphones

Question 6

A user notices that the back cover of their Android smartphone is slightly bulging and the screen is lifting from the frame. The phone still turns on and functions normally. Which of the following actions should the technician recommend FIRST?

Accepted Answer

Power off the phone and replace the battery. The bulging back cover and screen lifting indicate a swollen lithium-ion battery, which is a critical safety hazard. The correct first action is to power off the phone immediately to prevent electrical short circuits or thermal runaway, and then replace the battery to eliminate the risk of fire or explosion.

Answer

Place the phone in a freezer to reduce swelling

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Continue using the phone but monitor the swelling daily

Answer

Use a clamp to press the screen back into place

Question 7

A user reports that their Android smartphone can make and receive phone calls, but cannot send or receive text messages (SMS/MMS) after a recent operating system update. The user has verified that the mobile data connection is working, and the messaging app is not blocked. Which of the following is the MOST likely cause of this issue?

Accepted Answer

The SMS center number settings are incorrect.. The SMS center number (SMSC) is a critical parameter stored on the SIM card that routes outgoing text messages through the carrier's SMSC server. After an OS update, this setting can be reset or corrupted, preventing SMS/MMS transmission while voice calls and mobile data remain functional because those services use separate network paths. Correcting the SMSC number restores SMS functionality without affecting other services.

Answer

The SIM card is not properly inserted.

Answer

The phone is not connected to a Wi-Fi network.

Answer

The messaging app is corrupted.

Question 8

A user reports that their Android smartphone's screen is shattered and the lower half of the touchscreen is unresponsive. The phone is locked with a PIN, and the user urgently needs to retrieve photos from the internal storage. The user does not want to spend money on repairs if possible. Which of the following is the BEST method to retrieve the data?

Accepted Answer

Use a USB OTG adapter to connect a wired mouse. A USB OTG (On-The-Go) adapter allows you to connect a wired mouse to the Android smartphone. Once connected, the mouse cursor can navigate the locked screen, enter the PIN, and access the internal storage without requiring the broken touchscreen to function. This method is cost-free (assuming the user has or can borrow an OTG adapter and mouse) and does not involve any repair or data loss.

Answer

Connect the phone to a computer via USB cable and access the files using MTP

Answer

Replace the phone's screen digitizer

Answer

Perform a factory reset to restore touch functionality

Question 9

A technician is replacing a cracked screen on an Android smartphone. After reassembling the device, the phone powers on successfully and the display shows the lock screen with the correct time and background image. However, the touchscreen does not respond to any taps or swipes. The technician has verified that the replacement screen is compatible with the phone model. Which of the following should the technician check FIRST?

Accepted Answer

Reseat the digitizer ribbon cable connector on the motherboard. The touchscreen not responding while the display works correctly indicates a problem with the digitizer, not the LCD. The digitizer ribbon cable connects the touch sensor to the motherboard; if it is loose or improperly seated after reassembly, the touchscreen will not register input. Reseating this connector is the logical first step before considering other components or software resets.

Answer

Reconnect the LCD display cable

Answer

Replace the smartphone battery

Answer

Perform a factory reset from the recovery menu

Question 10

A user reports that their Android smartphone's volume rocker button is physically stuck in the pressed position. The phone is still functioning, but the volume constantly decreases to zero and cannot be adjusted. Which of the following is the BEST first step?

Accepted Answer

Remove the phone case and clean around the button with compressed air. A stuck physical button on a smartphone is often caused by debris, such as dust or lint, lodged around the button, or by a case that is pressing against it. The best first step is to remove any case and gently clean around the button with compressed air. Factory reset and firmware reflash are software solutions that cannot fix a physical obstruction. Replacing the display assembly is unnecessary and costly for a button issue.

Answer

Perform a factory reset

Answer

Replace the display assembly

Answer

Reflash the firmware

Question 11

A user's iPhone is stuck on the Apple logo during startup and will not complete the boot process. The user has already performed a force restart (press and release Volume Up, then Volume Down, then hold the Side button) multiple times without success. Which of the following should the user do NEXT to resolve this issue?

Accepted Answer

Restore the device using iTunes or Finder. A force restart bypasses a temporary software hang, but if the iPhone remains stuck on the Apple logo, the boot process is failing due to a corrupted operating system or critical system file. Restoring the device via iTunes or Finder (or the Finder equivalent on macOS Catalina and later) reflashes the iOS firmware, replacing the damaged system partition and allowing the device to boot cleanly. This is the standard next step after a force restart fails to resolve a boot loop or startup freeze.

Answer

Replace the battery

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Update the carrier settings

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Perform a hard reset by holding the Home button and the Power button simultaneously

Question 12

A user reports that their smartphone, which uses a Lightning connector, will not charge at all. The phone powered off overnight and will not turn back on. The user has tried three different known-good charging cables and two known-good wall adapters, none of which work. The technician inspects the phone's charging port and notices it appears clean and undamaged. Which of the following is the MOST likely cause of the issue?

Accepted Answer

The Lightning port has internal pin damage that is not visible. The Lightning connector uses internal pins that can be damaged or bent without visible external signs. Since the user has verified that the cables and wall adapters are known-good, the issue is isolated to the phone's charging port. Internal pin damage would prevent electrical contact even though the port appears clean, making this the most likely cause.

Answer

The battery is completely depleted and needs to be replaced

Answer

The charging IC (Integrated Circuit) on the motherboard has failed

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The phone's operating system has corrupted and needs to be restored

Question 13

A user's iPhone 13 will not power on after being plugged in overnight with a Lightning cable. The technician tries a different cable and power adapter with no success. The technician inspects the Lightning port and removes a small amount of debris, but the phone remains unresponsive. When the technician places the phone on a Qi wireless charger, the screen briefly displays a battery icon and then goes black. Which of the following is the MOST likely cause of the issue?

Accepted Answer

The Lightning port assembly is faulty. The phone responds to Qi wireless charging (brief battery icon) but not to wired charging, which isolates the issue to the Lightning port or its internal connection. Since the technician already tried different cables, adapters, and removed visible debris, the most likely cause is a faulty Lightning port assembly—such as a damaged connector, broken solder joints, or internal corrosion—that prevents power delivery via the Lightning path while leaving wireless charging functional.

Answer

The battery has failed and needs replacement

Answer

The power button is stuck in the pressed position

Answer

The logic board has a short circuit

Question 14

A user reports that their iPhone charges very slowly and only when the Lightning cable is held at a specific angle. The user has tried multiple known-good chargers and cables, but the issue persists. The technician inspects the Lightning port on the phone and sees what appears to be lint compacted at the bottom. Which of the following is the BEST next step for the technician to resolve this issue?

Accepted Answer

Gently clean the port with a wooden toothpick. The lint compacted at the bottom of the Lightning port is preventing the connector from seating fully, causing intermittent charging. Gently cleaning the port with a wooden toothpick is the safest and most effective method to dislodge the debris without damaging the delicate pins inside the port. This resolves the issue without replacing hardware or performing software resets.

Answer

Use compressed air to blow out the debris from the port

Answer

Replace the Lightning port assembly

Answer

Perform a factory reset on the iPhone

Question 15

A user reports that their iPhone 12 is stuck in a continuous boot loop—it shows the Apple logo, then turns off, and repeats. The user has already performed a force restart (Volume Up, Volume Down, hold Side button) multiple times without success. The iPhone is still running the original iOS version. Which of the following should the user try next to resolve this issue?

Accepted Answer

Connect the iPhone to a computer and put it into recovery mode, then restore via Finder or iTunes. A continuous boot loop on an iPhone that persists after a force restart typically indicates a corrupted operating system or failed firmware update. Since the iPhone is still on its original iOS version, the most effective next step is to connect it to a computer, put it into recovery mode (by pressing and releasing Volume Up, then Volume Down, then holding the Side button until the recovery mode screen appears), and restore the device via Finder (macOS Catalina or later) or iTunes (Windows or older macOS). This process reloads the iOS firmware and resolves software-level boot failures without requiring hardware replacement.

Answer

Replace the battery

Answer

Disconnect and reconnect the internal battery

Answer

Perform a factory reset from the Settings app