220-1101 Mobile Devices Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Use the volume buttons and power button to navigate the recovery menu to perform a factory reset from recovery mode.

  Why it's wrong here

  Recovery mode factory reset requires a vendor-specific hardware key combination (e.g., Power+Volume Down) held at boot, then navigation via the volume rocker and power button to select menu items. With a cracked screen, the display may be partially unreadable, so the user cannot reliably see highlighted menu text, and accidental power-button presses can trigger the wrong action. This method works only on certain models, and the exact timing varies, making it far less dependable than using a USB mouse pointer.

• ✓

  Connect a USB mouse via an OTG adapter to navigate the interface and tap the reset button.

  Why this is correct

  An OTG adapter places the smartphone in USB host mode, allowing a standard USB mouse to enumerate as a HID device and generate pointer-motion events that Android's input stack interprets as on-screen navigation. The mouse cursor gives precise, continuous positional control, so the user can visually target the 'Reset' button in Settings even when the touchscreen digitizer is cracked and unresponsive to direct touch. Unlike recovery or remote tools, this method uses the normal Settings UI and requires only a working display and OTG support.

• ✗

  Use the manufacturer's online account portal (e.g., Find My Device) to remotely wipe the device.

  Why it's wrong here

  Remote wipe is a good option if the device is online and the user has access to the portal, but it is not guaranteed to work if the device is offline or if the user does not have account access. It is less direct than using a local method.

• ✗

  Install a third-party backup app that can initiate a factory reset from the app's settings.

  Why it's wrong here

  Without root access or a device-administrator flag, third-party apps cannot invoke a factory reset because Android deliberately restricts this destructive operation to the system Settings package and the bootloader recovery. Installing or configuring such an app would itself require navigating the damaged touchscreen, which is the original failure; if the screen is only partially responsive, the user may not even be able to grant the necessary permissions. Even if an app used an accessibility service to simulate taps on a button, the reset action still requires system-level privileges that a normal app sandbox cannot obtain.

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