Mobile Device Connectivity Troubleshooting Quiz

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Questions and Answers

What issues can arise if there are problems with the cellular modem in a smartphone?

Loss of GPS functionality and inability to use location-based services
Reduced battery life, slower performance, and limited app functionality
Inability to make phone calls, send text messages, or receive mobile data (correct)
Difficulty in accessing Wi-Fi, Bluetooth, and NFC

What should be verified in the settings if there are cellular connectivity issues?

Bluetooth device pairing and connection status
Wi-Fi network availability and signal strength
Near-field communication compatibility and enabled apps
Cellular modem status and correct settings (correct)

What should be ensured when traveling outside the normal home or office environment to maintain cellular communications?

Near-field communication is turned off
Roaming is enabled (correct)
Bluetooth tethering is disabled
Wi-Fi calling is activated

What action may be necessary if there's a cellular tower issue in the area?

Manually choose a tower for the cellular provider (D) Signup and view all the answers

What is the primary purpose of near-field communication (NFC)?

To enable contactless payments and data transfer within a short distance (D) Signup and view all the answers

What should you verify if you are experiencing issues with NFC?

Check if airplane mode is not activated (A) Signup and view all the answers

How does AirDrop work for file transfers between Apple devices?

Over a Bluetooth connection (C) Signup and view all the answers

What is the recommended security practice for AirDrop and Nearby Share?

Limiting the recipients who can send and receive data (B) Signup and view all the answers

What is the distance range for NFC operation?

A couple of inches (D) Signup and view all the answers

What is the potential consequence of setting AirDrop to receive files from everybody?

Increased security risk (D) Signup and view all the answers

What is the impact of activating airplane mode on NFC capabilities?

It can turn off NFC capabilities (D) Signup and view all the answers

What is the primary function of Nearby Share in Android devices?

To enable file transfers within close proximity (A) Signup and view all the answers

What is the recommended approach if you're having issues with AirDrop or Nearby Share?

Verify that the sender is listed in the recipient's contact list (D) Signup and view all the answers

How does the distance between the reader and the device affect the performance of NFC?

The closer, the better the NFC performance (D) Signup and view all the answers

What should you do if you're still having Bluetooth issues after reestablishing the handshake?

Forget the connection and re-pair with the device (B) Signup and view all the answers

What is the range within which AirDrop and Nearby Share typically operate using Bluetooth?

10 to 30 feet (D) Signup and view all the answers

What can affect cellular connectivity in the aftermath of a natural disaster?

Tower damage (A) Signup and view all the answers

What can disable cellular modem and affect cellular connectivity?

Airplane mode (A) Signup and view all the answers

What provides Wi-Fi connectivity in mobile devices?

802.11 wireless card (D) Signup and view all the answers

Do Wi-Fi cards in newer devices remain enabled in airplane mode?

Yes (C) Signup and view all the answers

What can cause Wi-Fi card malfunction in a mobile device?

Damage to embedded Wi-Fi card antennas (C) Signup and view all the answers

Compared to desktop or laptop computers, how strong are mobile device Wi-Fi signals?

Weaker (B) Signup and view all the answers

What weakens Wi-Fi signal to save battery life?

Low battery (D) Signup and view all the answers

What blocks Wi-Fi signals more than drywall?

Concrete walls (A) Signup and view all the answers

What reduces Wi-Fi signal distance on smartphones?

Thick protective cases (A) Signup and view all the answers

What is involved in proper Wi-Fi configuration?

Selecting the right SSID, encryption, and frequency (C) Signup and view all the answers

What is the coverage area for Bluetooth?

Shorter, around 10-30 feet (B) Signup and view all the answers

What is involved in troubleshooting Bluetooth connectivity?

Reducing distance between devices and re-pairing devices (A) Signup and view all the answers

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Study Notes

Troubleshooting Mobile Device Connectivity

After natural disasters, selecting a different cellular tower may be necessary due to tower damage
Airplane mode can disable cellular modem, affecting cellular connectivity
Wi-Fi connectivity is provided by an 802.11 wireless card in mobile devices
Wi-Fi cards in newer devices remain enabled in airplane mode
Damage to embedded Wi-Fi card antennas can cause Wi-Fi card malfunction
Mobile device Wi-Fi signals are weaker than those of desktop or laptop computers
Low battery weakens Wi-Fi signal to save battery life
Concrete walls block Wi-Fi signals more than drywall
Thick protective cases on smartphones reduce Wi-Fi signal distance
Proper Wi-Fi configuration involves selecting the right SSID, encryption, and frequency
For Bluetooth, coverage area is shorter, around 10-30 feet
Troubleshooting Bluetooth involves reducing distance between devices and re-pairing devices

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