Domain 3: Software Troubleshooting Flashcards
How to test a Windows computer’s responsiveness by triggering a beep (& possibly reinitializing the display)
Start + Ctrl + Shift + B
How to ensure that all data is completely cleared from caches and system memory
Power down the machine and disconnect it from the power supply for 30 seconds
Steps for verifying a computer’s configuration and for testing router connections
- Ping loopback
- Ping your own IP
- Ping IP of default gateway
- Ping IP of a remote host
3 most likely causes of a ping resulting in:
Reply from sender IP Destination unreachable
- The destination host is disconnected
- The destination host is configured as non-discoverable
- IP misconfiguration
2 most likely causes of a ping resulting in:
Reply from gateway IP Destination unreachable
Misconfiguration of either:
- the router
or
- the destination network
resulting in the router having no forwarding information for the IP address
2 most likely causes of a ping resulting in:
No reply (Request timed out)
The destination host received the ping but is
- down
- configured to not respond
How to boot into safe mode on Android
Tap & hold the power off message
How long should you wait to do a factory reset after resetting your account password
72 hours
4 Steps to troubleshoot mobile OS update issues
- Use the vender website to verify the update is compatible
- Connect to power & Wi-Fi
- Restart the device & try again
- Ensure sufficient free space
4 possible causes of random mobile device reboots
- Overheating
- Low battery charge
- Faulty battery
- Faulty hardware
3 possible causes of a mobile device being slow to respond
- Throttling due to high temperature or low battery
- Too many open apps
- Badly written apps that overutilize resources
What to do if an update messes up your phone
Report the issue. (Rollback is not usually an option)
How is autorotation different on an Android compared to Apple?
In Android you enable it in Control Center to use it, rather than the other way around
The square button on the bottom-right of an Android device
The multitasking button (shows all the open apps)
When you should force stop a mobile app
If the app:
- Fails to launch
- Fails to close
- Crashes
3 things to check if a mobile app fails to update
- If it’s compatible with the OS version
- If there’s sufficient storage space
- If there is an Internet connection
10 Things to check when troubleshooting a mobile networking issue
- Distance from antenna
- Interference from other devices or barriers
- Battery level (low charge weakens the signal)
- Case (try removing it)
- The way it is held
- Airplane mode & individual radio functions
- Wi-Fi or Bluetooth pairing information
- AP wireless standard compatibility
- Firmware for device or AP
- Known issues between AP & device
Android version of AirDrop
Nearby Share
Apple Business Manager & Managed Google Play
Enterprise distribution programs that allow an MDM suite to push a company’s private apps to devices
Sideloading
Installing untrusted apps from a website onto an Android
Bootleg app
Software that illegally copies or imitates a commercial product or brand. Sometimes downloaded from a bootleg store.
4 ad characteristics that signal malware on a mobile device
- Unexpected
- Display in the browser
- Open pop-ups that are hard to close
- Exhibit a high degree of personalization the user has not authorized
4 signs of a malware infection in a mobile device
- High number of ads
- Fake security warnings
- Sluggish performance
- Limited/no Internet connectivity
What you should do before posting a photo online
Strip it of geotagging information
Microsoft version of AirDrop
Nearby Sharing
2 common causes of no wireless connectivity
- Low RF signal
- Disabled SSID broadcast
2 common causes of limited wireless connectivity
- Low RF signal
- External interferences
Most common cause of intermittent wireless connectivity
Too many devices on the Wi-Fi network
What will pressing the SHIFT key while rebooting Windows do?
Boot into WinRE
