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CompTIA A+ 220-1102 > Domain 3: Software Troubleshooting > Flashcards

Domain 3: Software Troubleshooting Flashcards

1
Q

How to test a Windows computer’s responsiveness by triggering a beep (& possibly reinitializing the display)

A

Start + Ctrl + Shift + B

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2
Q

How to ensure that all data is completely cleared from caches and system memory

A

Power down the machine and disconnect it from the power supply for 30 seconds

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3
Q

Steps for verifying a computer’s configuration and for testing router connections

A
  1. Ping loopback
  2. Ping your own IP
  3. Ping IP of default gateway
  4. Ping IP of a remote host
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4
Q

3 most likely causes of a ping resulting in:
Reply from sender IP Destination unreachable

A
  • The destination host is disconnected
  • The destination host is configured as non-discoverable
  • IP misconfiguration
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5
Q

2 most likely causes of a ping resulting in:
Reply from gateway IP Destination unreachable

A

Misconfiguration of either:
- the router
or
- the destination network
resulting in the router having no forwarding information for the IP address

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6
Q

2 most likely causes of a ping resulting in:
No reply (Request timed out)

A

The destination host received the ping but is
- down
- configured to not respond

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7
Q

How to boot into safe mode on Android

A

Tap & hold the power off message

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8
Q

How long should you wait to do a factory reset after resetting your account password

A

72 hours

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9
Q

4 Steps to troubleshoot mobile OS update issues

A
  1. Use the vender website to verify the update is compatible
  2. Connect to power & Wi-Fi
  3. Restart the device & try again
  4. Ensure sufficient free space
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10
Q

4 possible causes of random mobile device reboots

A
  • Overheating
  • Low battery charge
  • Faulty battery
  • Faulty hardware
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11
Q

3 possible causes of a mobile device being slow to respond

A
  • Throttling due to high temperature or low battery
  • Too many open apps
  • Badly written apps that overutilize resources
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12
Q

What to do if an update messes up your phone

A

Report the issue. (Rollback is not usually an option)

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13
Q

How is autorotation different on an Android compared to Apple?

A

In Android you enable it in Control Center to use it, rather than the other way around

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14
Q

The square button on the bottom-right of an Android device

A

The multitasking button (shows all the open apps)

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15
Q

When you should force stop a mobile app

A

If the app:
- Fails to launch
- Fails to close
- Crashes

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16
Q

3 things to check if a mobile app fails to update

A
  • If it’s compatible with the OS version
  • If there’s sufficient storage space
  • If there is an Internet connection
17
Q

10 Things to check when troubleshooting a mobile networking issue

A
  • 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
18
Q

Android version of AirDrop

A

Nearby Share

19
Q

Apple Business Manager & Managed Google Play

A

Enterprise distribution programs that allow an MDM suite to push a company’s private apps to devices

20
Q

Sideloading

A

Installing untrusted apps from a website onto an Android

21
Q

Bootleg app

A

Software that illegally copies or imitates a commercial product or brand. Sometimes downloaded from a bootleg store.

22
Q

4 ad characteristics that signal malware on a mobile device

A
  • Unexpected
  • Display in the browser
  • Open pop-ups that are hard to close
  • Exhibit a high degree of personalization the user has not authorized
23
Q

4 signs of a malware infection in a mobile device

A
  • High number of ads
  • Fake security warnings
  • Sluggish performance
  • Limited/no Internet connectivity
24
Q

What you should do before posting a photo online

A

Strip it of geotagging information

25
Q

Microsoft version of AirDrop

A

Nearby Sharing

26
Q

2 common causes of no wireless connectivity

A
  • Low RF signal
  • Disabled SSID broadcast
27
Q

2 common causes of limited wireless connectivity

A
  • Low RF signal
  • External interferences
28
Q

Most common cause of intermittent wireless connectivity

A

Too many devices on the Wi-Fi network

29
Q

What will pressing the SHIFT key while rebooting Windows do?

A

Boot into WinRE

CompTIA A+ 220-1102 (5 decks)

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