220-1201 Mobile Devices Practice Question
A user reports that their laptop's touchpad cursor jumps erratically whenever they rest their palms on the laptop while typing. The laptop is running Windows 11 and the touchpad driver is up to date. Which of the following is the MOST likely cause of the erratic cursor behavior?
⚠ Common exam trap
The trap here is assuming that a high sensitivity setting is the root cause, when the specific symptom of cursor jumping during typing points to palm detection failure.
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
✓
Palm detection is disabled or not functioning properly in the touchpad settings.
Palm detection is designed to prevent accidental cursor movement when the user's palms rest on the touchpad during typing. When this feature is disabled or not working, the touchpad interprets palm contact as valid input, causing erratic cursor jumps. Adjusting or enabling palm detection in the touchpad settings directly addresses the reported behavior.
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 touchpad is configured for a left-handed user.
Why it's wrong here
Left-handed configuration swaps the primary and secondary buttons but does not cause the cursor to jump when palms rest on the touchpad. This setting only affects button mapping, not pointer movement or sensitivity to accidental contact. The described behavior is related to palm detection, not button orientation, so this setting is not the cause.
- ✓
Palm detection is disabled or not functioning properly in the touchpad settings.
Why this is correct
Palm detection is a feature that ignores large contact areas, such as the base of the palm, when typing. If disabled or malfunctioning, resting palms on the touchpad generates unintended cursor movement. The scenario describes classic palm detection failure. Enabling or adjusting palm detection settings in the touchpad driver utility resolves the issue.
- ✗
The touchpad sensitivity is set too high, causing accidental input from palm contact.
Why it's wrong here
While high sensitivity can make the touchpad overly responsive, modern touchpads use palm detection to ignore large contact areas. If palm detection is working, sensitivity alone would not cause jumping. The issue is more specifically that palm detection is disabled or not functioning, so adjusting sensitivity does not address the root cause.
- ✗
The touchpad driver needs to be rolled back to a previous version.
Why it's wrong here
The driver is already up to date, and rolling back is unlikely to fix palm detection issues unless a recent driver update broke the feature. The scenario does not indicate a recent update or driver corruption. The more direct cause is a configuration setting, not a driver version problem, so rolling back is not the best first step.
Go deeper
Related to this question
Learn chapter
Laptop Keyboard and Touchpad Replacement
Key term
Touchpad
A touchpad is a flat, touch-sensitive surface built into a laptop that allows you to control the cursor and perform clicks by moving your finger across it.
Key term
Laptop
A portable personal computer that integrates a display, keyboard, touchpad, battery, and internal components into a single clamshell device for mobile computing.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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