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220-1201 Practice Question: That their iPhone's Maps app shows incorrect GPS…
A user reports that their iPhone's Maps app shows incorrect GPS location, often placing them several blocks away. Other location-based apps like Uber work correctly. What is the most likely cause?
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 Maps app has been denied location access in Settings.
This scenario distinguishes between device-wide GPS issues and app-specific problems. Since other apps use location correctly, the issue is likely with the Maps app's configuration, such as incorrect location permissions or a software glitch within the app.
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 iPhone's GPS antenna is damaged.
Why it's wrong here
A damaged GPS antenna would prevent the iPhone's Core Location framework from receiving satellite signals, impacting all applications that rely on precise GPS data, not just the Maps app. Since the problem is reported only with the Maps app, a hardware failure affecting the entire GPS system is less likely than a software or configuration issue specific to that application. Other location services, like Wi-Fi or cellular triangulation, might still function, but the accuracy derived from GPS would be universally degraded across the device.
- ✓
The Maps app has been denied location access in Settings.
Why this is correct
If the Maps app's location services permission is set to "Never" or restricted to "Ask Next Time" without subsequent approval, the app will be unable to access the device's precise GPS, Wi-Fi, and cellular location data. Instead, it might fall back to less accurate methods, such as IP address-based geolocation, or simply fail to provide a current position, leading to incorrect or absent mapping information. Granting "While Using the App" or "Always" permission is crucial for accurate real-time positioning within the application.
- ✗
The iPhone is in Airplane Mode.
Why it's wrong here
Activating Airplane Mode disables all wireless communication radios on the iPhone, including cellular, Wi-Fi, Bluetooth, and the GPS receiver. This comprehensive shutdown would prevent any application from accessing location data derived from satellites, Wi-Fi networks, or cellular towers. Consequently, if Airplane Mode were enabled, all location-dependent apps, not just Maps, would exhibit incorrect or unavailable positioning, making it an unlikely cause for an issue isolated to a single application.
- ✗
The Maps app needs to be reinstalled from the App Store.
Why it's wrong here
Reinstalling the Maps app would not resolve a GPS location discrepancy, because the app itself does not generate location data; it relies on the iOS Core Location framework, which aggregates signals from GPS satellites, Wi-Fi, and cellular towers. The correct fix would involve resetting location services or calibrating the compass, as the issue lies in the device’s location stack, not the app bundle. This option is tempting because corrupted app data can cause crashes or blank screens, and reinstalling is a standard remedy for app-specific malfunctions, such as a missing map tile cache.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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