Software Troubleshooting practice questions

The charging port is loose.

Why wrong: A loose port would cause intermittent charging or no power at all, not a consistent 'not charging' status.

The power management driver is outdated.

Why wrong: Driver issues can cause charging problems, but a hardware failure is more likely given the battery's age and symptoms.

The CMOS battery is dead.

Why wrong: A dead CMOS battery affects system clock and BIOS settings, not main battery charging.

The fan is running at low speed due to a faulty fan controller.

Why wrong: The fan is spinning, so the controller is likely fine; the issue is thermal transfer, not fan speed.

The CPU is faulty and needs replacement.

Why wrong: A faulty CPU is possible but less likely than a thermal paste issue; overheating is a common symptom of poor thermal contact.

The BIOS is set to an aggressive power-saving mode.

Why wrong: Power-saving modes reduce performance, not cause overheating; they would lower temperatures.

Install a screen protector on each tablet.

Why wrong: While protective, this is not essential for kiosk mode configuration.

Remove the SIM card from each tablet.

Why wrong: SIM removal is unnecessary unless cellular access is restricted; kiosk mode can be set with or without it.

Replace the stock ROM with a custom firmware.

Why wrong: Custom firmware voids warranty and is not standard practice for enterprise deployment; kiosk mode uses built-in OS features.

The digitizer is malfunctioning.

Why wrong: Digitizer failure would affect touch response, which is reported as normal.

The LCD panel has dead pixels.

Why wrong: Dead pixels cause fixed spots, not overall dimness or flickering.

The motherboard GPU is damaged.

Why wrong: GPU damage usually causes artifacts, screen corruption, or no display, not just dimness with normal OS operation.

Calibrate the battery by fully draining and recharging.

Why wrong: Calibration helps with inaccurate charge reporting, not with actual capacity loss.

Update the operating system to the latest version.

Why wrong: OS updates may improve efficiency but won't fix hardware degradation of the battery.

Disable all background apps and notifications.

Why wrong: This is a software workaround, not a hardware servicing solution for a degraded battery.

Replace the entire keyboard assembly.

Why wrong: The keyboard is separate from the touchpad; replacing it won't fix touchpad issues.

Replace the laptop's LCD screen.

Why wrong: The LCD screen has no relation to touchpad input.

Reinstall the operating system.

Why wrong: Driver update already done; reinstalling OS is excessive and unlikely to fix a hardware connection issue.

Restart the iPhone.

Why wrong: Restarting can help, but if the device is already listed and not connecting, forgetting and re-pairing is more direct and effective.

Reset the network settings on the iPhone.

Why wrong: Resetting network settings is more drastic and unnecessary; it would erase all Wi-Fi and Bluetooth data, which is overkill.

Update the speaker's firmware.

Why wrong: Firmware updates are not a first step; the speaker works with other devices, so the issue is likely with the iPhone's pairing cache.

The smartwatch firmware is outdated.

Why wrong: Outdated firmware might cause sync issues, but the intermittent nature and the battery optimization setting point to a software management issue.

The Bluetooth radio is experiencing interference from other devices.

Why wrong: Interference would cause random disconnections, not intermittent sync specifically tied to app background activity.

The smartwatch's battery is low.

Why wrong: Low battery on the watch would cause it to disconnect or power off, not selectively sync data.

The 5 GHz network is using a channel not supported by the laptop's Wi-Fi adapter.

Why wrong: While possible, most adapters support common 5 GHz channels; this is less likely than range/obstruction issues.

The laptop's Bluetooth is interfering with the 5 GHz Wi-Fi.

Why wrong: Bluetooth uses 2.4 GHz, not 5 GHz, so it cannot interfere with 5 GHz Wi-Fi.

The 5 GHz network requires WPA3, which the laptop does not support.

Why wrong: WPA3 is backward compatible; the laptop would still see the network but fail authentication, not fail to connect entirely.

The laptop's IP address configuration

Why wrong: IP configuration issues would prevent network access, but the laptop can connect to the hotspot, suggesting DHCP is working.

The laptop's firewall settings

Why wrong: Firewall settings might block certain traffic, but the first step is to ensure the hotspot itself has internet access.

The smartphone's Wi-Fi is turned on

Why wrong: Wi-Fi on the phone is used for the hotspot, but it's already broadcasting; the issue is internet access, not connectivity.

The phone's battery level

Why wrong: Battery level does not affect NFC functionality as long as the phone is on.

The payment terminal's internet connection

Why wrong: NFC transactions can work offline; the terminal's internet is for authorization, not detection.

The phone's default payment app settings

Why wrong: App settings affect which card is used, but the terminal not detecting the phone at all points to a hardware or alignment issue.

Uninstall the mouse driver and reboot.

Why wrong: This would remove the mouse driver entirely, requiring reinstallation and potentially affecting other devices.

Change the mouse's Bluetooth pairing to a different channel.

Why wrong: Bluetooth channels are managed automatically; manual channel selection is not a standard user setting.

Update the laptop's BIOS to the latest version.

Why wrong: BIOS updates can fix hardware compatibility, but this is a driver/software issue, not a BIOS problem.

The laptop's battery is completely dead and needs replacement.

Why wrong: A dead battery would still allow the laptop to run on AC power if the port worked; the flash drive test indicates port failure.

The power adapter is not outputting enough wattage.

Why wrong: If the adapter works with other devices, wattage is sufficient; the flash drive test confirms port issue.

The laptop's BIOS settings have disabled the USB-C port.

Why wrong: BIOS settings could disable a port, but this is rare and would typically affect all USB-C functions; still, physical damage is more likely given the symptoms.

Ensure the tablet's Bluetooth is turned on.

Why wrong: The tablet already connects to headphones, so Bluetooth is on. This is not the issue.

Update the tablet's operating system.

Why wrong: An OS update is unlikely to fix a specific pairing issue with one device, especially when other Bluetooth devices work.

Reset the tablet's network settings.

Why wrong: Resetting network settings is a more drastic step and should be done after simpler checks, like ensuring the keyboard is in pairing mode.

Check the device's MAC address filter on the router.

Why wrong: MAC filtering would block the device from connecting to specific networks, but the scenario says it cannot connect to any Wi-Fi network, not just one.

Check if the device's date and time are correct.

Why wrong: Incorrect date/time can cause SSL errors but typically does not prevent initial Wi-Fi association.

Check if the device's Bluetooth is interfering.

Why wrong: Bluetooth and Wi-Fi can interfere on the 2.4 GHz band, but this would cause intermittent issues, not a complete inability to connect to any network.

The 5 GHz router is too far from the laptop.

Why wrong: 5 GHz has shorter range, but if the laptop is close enough to connect to 2.4 GHz, range is unlikely the issue.

The 5 GHz network is using WEP encryption.

Why wrong: WEP is outdated but would affect both bands equally if used; modern devices usually support WPA2.

The laptop's Wi-Fi card is only 2.4 GHz capable.

Why wrong: The scenario states the laptop supports dual-band, so the hardware is capable.

Verify that the tablet's Wi-Fi is enabled.

Why wrong: The tablet uses cellular data, so Wi-Fi is not required for VPN connectivity.

Ensure the tablet's date and time are set automatically.

Why wrong: While incorrect time can affect certificate validation, it is less likely than wrong credentials and is not the first check.

Disable the firewall on the tablet.

Why wrong: Tablet firewalls are rare and not the primary cause; disabling them is not a standard troubleshooting step.

The Wi-Fi network's SSID is hidden.

Why wrong: A hidden SSID does not affect IP configuration or internet access once connected.

The laptop's Wi-Fi driver is corrupted.

Why wrong: A corrupted driver would likely cause connection drops or inability to connect, not a stable connection with no internet.

The router's DHCP server is disabled.

Why wrong: Since the laptop uses a static IP, DHCP status is irrelevant; other devices may still work.

Connect the tablet to a personal hotspot from the sales rep's smartphone.

Why wrong: While possible, this drains the phone's battery and relies on the phone's data plan, which may not be company-managed.

Install a Wi-Fi extender in the car to boost nearby public Wi-Fi signals.

Why wrong: Public Wi-Fi is unreliable and may not be available in many locations, making it unsuitable for constant connectivity.

Rely on Bluetooth tethering to a laptop for internet access.

Why wrong: Bluetooth tethering is slower and less reliable than cellular, and it also requires another device to be present.

The laptop's wireless adapter is disabled in Device Manager.

Why wrong: If the adapter were disabled, the laptop would not see any Wi-Fi networks at all.

The Wi-Fi router is out of range.

Why wrong: If the laptop sees networks, it is within range of at least one router.

The laptop's Bluetooth is interfering with Wi-Fi.

Why wrong: Bluetooth and Wi-Fi can interfere, but this usually causes intermittent drops, not a complete inability to connect to any network.