hardMultiple ChoiceObjective-mapped
220-1201 Practice Question: A technician is troubleshooting a smartwatch that…
A technician is troubleshooting a smartwatch that will not sync with a smartphone via Bluetooth. The smartwatch pairs but data syncs only intermittently. The smartphone is an Android device with battery optimization enabled for the companion app. What is the most likely cause?
⚠ Common exam trap
The 220-1201 exam often tests the distinction between pairing (authentication) and syncing (data transfer), leading candidates to overlook how Android's power management features can interrupt background services while still allowing a paired connection to exist.
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 smartphone's battery optimization is preventing the companion app from running in the background.
Battery optimization on Android (Doze mode) restricts background app activity to conserve power. When the companion app is prevented from running in the background, it cannot maintain the persistent Bluetooth connection needed for continuous data sync, even though the initial pairing succeeds. This explains intermittent sync because the app is periodically killed or throttled by the OS.
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The smartwatch firmware is outdated.
Why it's wrong here
While outdated firmware can lead to various performance issues, including general instability or specific feature malfunctions, it typically results in consistent problems rather than intermittent data synchronization failures tied to background app activity. Firmware updates primarily address core device functionality and security, not usually the dynamic interaction with a companion app's background processes, which is more indicative of OS-level app management.
- ✗
The Bluetooth radio is experiencing interference from other devices.
Why it's wrong here
Bluetooth interference, often caused by other 2.4 GHz devices (Wi-Fi, cordless phones), typically manifests as sporadic disconnections, dropped data packets, or complete inability to establish a connection. It would not selectively prevent data synchronization only when the companion app is in the background, as the radio itself would still be active and attempting to communicate, albeit with degraded performance.
- ✓
The smartphone's battery optimization is preventing the companion app from running in the background.
Why this is correct
Modern smartphone operating systems employ aggressive battery optimization techniques to extend device uptime. These features often restrict background app activity, including data synchronization and persistent Bluetooth connections, for apps deemed non-essential or those consuming significant power. When the companion app is prevented from running continuously in the background, it cannot maintain the necessary data link with the smartwatch, leading to intermittent or delayed synchronization until the app is brought to the foreground or the device is actively used.
- ✗
The smartwatch's battery is low.
Why it's wrong here
A critically low battery on the smartwatch would typically trigger power-saving modes, reduce functionality, or cause the device to shut down entirely to protect its components. It would not selectively prevent data synchronization while allowing other functions to operate normally. Intermittent sync issues are more indicative of a software or connection management problem rather than a fundamental power supply deficiency on the watch itself.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.