220-1102 · Question #581
A customer, whose smartphone's screen was recently repaired, reports that the device has no internet access through Wi-Fi. The device shows that it is connected to Wi-Fi, has an address of…
The correct answer is B. Static IP settings. A smartphone connected to Wi-Fi with an IP address but no subnet mask indicates an incomplete or incorrect network configuration, which would prevent internet access. The lack of a subnet mask strongly suggests an issue with manual IP address settings.
Question
A customer, whose smartphone's screen was recently repaired, reports that the device has no internet access through Wi-Fi. The device shows that it is connected to Wi-Fi, has an address of 192.168.1.42, and has no subnet mask. Which of the following should the technician check next?
Options
- AInternal antenna connections
- BStatic IP settings
- CAirplane mode
- DDigitizer calibration
How the community answered
(24 responses)- A4% (1)
- B75% (18)
- C17% (4)
- D4% (1)
Why each option
A smartphone connected to Wi-Fi with an IP address but no subnet mask indicates an incomplete or incorrect network configuration, which would prevent internet access. The lack of a subnet mask strongly suggests an issue with manual IP address settings.
Internal antenna connections would typically prevent the device from connecting to Wi-Fi at all, whereas the question states the device is connected to Wi-Fi.
If a device has an IP address but is missing a subnet mask, it indicates that the IP configuration is incomplete or manually misconfigured as a static IP. A subnet mask is essential for the device to determine which network segment it belongs to and to route traffic correctly, so checking static IP settings would confirm if a manual configuration attempt led to the missing subnet mask.
Airplane mode would disable all wireless communication, including Wi-Fi, so the device would not be able to connect to Wi-Fi if airplane mode was enabled.
Digitizer calibration relates to touch screen responsiveness and accuracy, having no impact on Wi-Fi connectivity or IP configuration.
Concept tested: TCP/IP network configuration troubleshooting
Source: https://learn.microsoft.com/en-us/windows/win32/winsock/ip-addresses-and-subnet-masks
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