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220-1102 · Question #581

220-1102 Question #581: Real Exam Question with Answer & Explanation

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.

Hardware and network troubleshooting

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

Explanation

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.

Common mistakes.

  • A. 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.
  • C. 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.
  • D. 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

Reference. https://learn.microsoft.com/en-us/windows/win32/winsock/ip-addresses-and-subnet-masks

Topics

#Wi-Fi troubleshooting#IP addressing#Subnet mask#Static IP settings

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