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220-1201 Practice Question: A marketing team uses tablets to capture customer…
A marketing team uses tablets to capture customer signatures on glass screen protectors. They report that the capacitive stylus often skips or fails to register strokes near the edges of the screen. After testing, you find the issue persists even without the protector. Which accessory should you recommend to improve stylus precision?
⚠ Common exam trap
CompTIA often tests the misconception that a screen protector is the root cause of touch issues, leading candidates to choose a replacement protector (Option A) instead of recognizing the fundamental difference between passive and active stylus technology.
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
✓
A fine-tip active stylus
The issue persists without the screen protector, ruling out the protector as the cause. A fine-tip active stylus (Option C) uses a digitizer and Bluetooth or proprietary protocol to communicate with the tablet, providing precise edge-to-edge tracking. Passive capacitive styluses rely on the finger's electrical field and often fail near edges due to reduced capacitive coupling, making an active stylus the correct solution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A tempered glass screen protector with an oleophobic coating
Why it's wrong here
A tempered glass screen protector primarily serves to protect the tablet's display from scratches and impacts, while an oleophobic coating reduces smudges and fingerprints. However, these accessories do not interact with the tablet's digitizer in a way that would improve or degrade stylus accuracy, especially if the underlying issue persists without the protector in place. The problem lies with the stylus-digitizer communication, not the screen's surface properties.
- ✗
A Bluetooth keyboard
Why it's wrong here
A Bluetooth keyboard is an external input device designed for efficient alphanumeric data entry, such as typing documents or emails. It connects wirelessly to the tablet to provide a physical QWERTY layout. This device offers no functionality related to graphical input, stylus precision, or the capture of freehand signatures, making it irrelevant to resolving issues with stylus accuracy.
- ✓
A fine-tip active stylus
Why this is correct
A fine-tip active stylus contains internal electronics that actively communicate with the tablet's digitizer layer, often through electromagnetic resonance or Bluetooth. This direct communication allows for highly precise tracking, pressure sensitivity, and tilt detection, which are critical for accurate signature capture and preventing skips or inaccuracies at the edges of strokes. The fine tip further enhances visual alignment and detail for intricate input.
- ✗
A different passive capacitive stylus with a larger tip
Why it's wrong here
A passive capacitive stylus functions by mimicking the electrical properties of a human finger, relying on the tablet's capacitive touchscreen to detect a broad contact area. Using a different passive stylus, especially one with a larger tip, would likely worsen precision rather than improve it, as the digitizer struggles to pinpoint the exact intended input location. This type of stylus lacks the active communication necessary to overcome inherent digitizer limitations for detailed tasks like signature capture.
Go deeper
Related to this question
Learn chapter
Bluetooth Profiles and Versions
Key term
Digitizer
A digitizer is the part of a touchscreen that converts your finger or stylus touches into digital signals the device can understand.
Key term
Bluetooth
Bluetooth is a short-range wireless technology used to connect devices like keyboards, mice, headphones, and smartphones without cables.
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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.