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A+ Core II > A+ Core II 3.0 Troubleshooting > Flashcards

A+ Core II 3.0 Troubleshooting Flashcards

1
Q

What is a Windows Stop Error (AKA blue screen of death or BSOD)?

A

A screen that is displayed when there is a significant issue on that Windows device.

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2
Q

What are some reasons a Windows Stop Error or Blue Screen of Death would appear?

A

Bad hardware, bad drivers, bad application

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3
Q

How can you troubleshoot a BSOD if the problem is related to software?

A

*You can try and run the Last Known Good Configuration

*You can restore the system to rollback the operating system version

*You can rollback whatever driver may be causing you issues

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4
Q

How can you fix a BSOD when problems occur during startup?

A

*Try booting in Safe Mode, which starts Windows in a basic state

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5
Q

What is the Last Known Good Configuration?

A

A feature that gives access to the computer when it’s not able to boot on its own

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6
Q

How can you remedy a BSOD when the problem is related to hardware?

A

*Reseat the hardware=Remove the device and reinstall it

*Remove hardware entirely

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7
Q

When troubleshooting a BSOD, what should you do when the issue persists after you have performed troubleshooting?

A

You may want to run hardware diagnostics. These can be provided by the manufacturer or BIOS may have this integrated into it.

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8
Q

How should you troubleshoot a device with sluggish performance?

A

*Start with Task Manager, check for high CPU utilization and I/O

*Check that Windows is updated with the latest patches and drivers

*Run an anti-virus/anti-malware scan

*For laptop devices, check fans and any other components that aid in temperature control

*Check to ensure the laptop is not using the power-saving mode, as this can throttle the CPU

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9
Q

What are some reasons for boot errors on a device, and how can we go about troubleshooting these issues?

A
  • “Can’t find operating system”

*Boot loader replaced or changed

-Check boot drives to ensure they’re properly connected

-Startup Repair

-Modify the Windows Boot Configuration Database

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10
Q

What is the Windows Boot Configuration Database?

A

Allows you to configure your system manually. You can run the Recovery Console by running the command [bootrec.rebuildbcd], which will rebuild the boot configuration database

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11
Q

If your Windows system is missing NTLDR, what can you do to help this issue?

A

*Windows Startup Repair

*You can manually copy the files directly to your system

*Disconnect any removable media that may be causing issues

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12
Q

How can you troubleshoot a device that isn’t starting because its missing an operating system?

A

Run Startup Repair or manually configure BCD store.

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13
Q

If Windows is booting to Safe Mode unintentionally, or it’s not starting properly, how can we fix this?

A

Run Startup Repair

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14
Q

If you have hardware installed into your computer and it isn’t starting, how can we troubleshoot this issue?

A

*Check Device Manager and Event Viewer to see if whether or not the hardware is working properly

*If an issue is found, try removing or replacing the driver for that piece of hardware

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15
Q

If your device displays “One or more services cannot start”, what does this mean, and how can we go about troubleshooting this issue?

A

This error message means that an important background process cannot be started (these are what you see in the service tab inside Task Manager). To remedy this, you perform the following steps:

*Try manually starting the service from the services option

*If the service is still not starting, check the account permissions to ensure the user account has permission to run that service

*Confirm the service’s dependencies, as it may need other apps/services running to run

*If the issue is associated with a Windows service; check the system files

*If the issue is associated with an app service; reinstall the app

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16
Q

What are some ways to troubleshoot applications when they crash?

A

*Check the Event Log
*Check the Reliability Monitor
*Reinstall the app

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17
Q

What are some ways to troubleshoot if you’re getting low memory warnings?

A

*Close large-memory processes
*Increase virtual memory

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18
Q

What is the Reliability Monitor used for?

A

This app can give you a view of how an app has been performing over time

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19
Q

What is virtual memory?

A

This is a memory management technique that involves temporarily moving info that is memory off onto your storage drive.

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20
Q

What are endpoints?

A

Buffers on USB devices, you can think of these as the resources used by your device to run and use USB devices.

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21
Q

When you’re trying to use a USB device, but the device keeps displaying ‘The controller does not have enough resources for this device’ what does this mean? And how can we fix the issue?

A

When this message is displayed, this means your computer has run out of endpoints, or resources to run the device. If you receive this error, you can perform the following tasks to troubleshoot;

*Move the device to a different USB interface

*Match the USB interface to the device’s capabilities

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22
Q

If your system is displaying a lot of instability such as software errors, system hangs (or freezes), and app failures, what can we do to troubleshoot these issues?

A

*Run a full diagnostic

*Run a hardware diagnostic

*Check the operating system

*Run SFC (System File Checker)

*Perform an anti-virus/anti-malware scan

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23
Q

What is SFC (System File Checker) in Windows?

A

A system file checker tool is used to scan files for corruption.

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24
Q

How can we deal with a computer’s time drift?

A

Enable automatic time setting: Settings> Date & Time

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25
Q

Why is it that rebooting a device is such a common troubleshooting solution?

A

When restarting a device, the system’s memory registers get refreshed, making them ready to start over

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26
Q

What is a memory leak?

A

A class of bug in an app where an app fails to release memory that is no longer needed, making it unavailable to other apps and processes

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27
Q

Where do you go if you need to repair an app that may be missing important files?

A

Control Panel>Programs and features

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28
Q

What does repair, reset, and uninstall do for your apps?

A

Repair
*Install missing files
*Replace corrupted files
*Fix app shortcuts
*Repair registry entries
*Update or reconfigure drivers

Reset
*Remove all app data
*A factory reset/original install

Uninstall
*Removes the app

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29
Q

Every OS and app manufacturer publishes a set of requirements in order to use the service. What can these requirements include?

A

*CPU speed
*Total RAM
*Video options
*Device drivers
*Runtime libraries

30
Q

What are runtime libraries?

A

A collection of code (functions, etc.) that a user program needs to work properly

31
Q

How can you view the current configuration for your Windows device?

A

System Information

32
Q

What feature helps you verify the integrity of your files/the OS?

A

System File Checker (SFC)

33
Q

How does SFC work?

A

Scans all important system files to ensure that these are the original versions installed in the OS

If files are missing/corrupted, SFC will prompt you to replace those files with the original versions (Useful if your system was breached and changes were made)

34
Q

What tool can help you install a previous configuration of your desktop, and where can you start this app?

A

System Restore

To start the app: System>About>System protection

35
Q

How can you view the update history log for Windows 10 and 11?

A

Windows 10: Settings>Update & Security>Windows Update

Windows 11: Settings>Windows Update

36
Q

If a user profile is corrupted or is failing to log on what tools can you use to fix it?

A

*Login to the computer with Domain Administrator rights

*Rename the \Users\name folder

*Backup the user’s registry
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
Right-click/Export

*Delete the registry entry (you have it backed up)

*Login as Domain Administrator
Copy over any important files from the old profile
(Do not copy the entire profile)

37
Q

If you’re receiving an abundance of desktop alerts and browser push notification messages, how can we stop these alerts?

A

*Disable browser notifications
*Scan for malware

38
Q

You are receiving tons of false antivirus alerts with a recognizable logo. How can we rid of these alerts?

A

Use a specific anti-malware remover

39
Q

You notice your system has some personal files on it altered. What can this indicate, and how can we remedy it?

A

Your computer is likely infected. You might want to use a malware cleaner or restore your system from a known good backup

40
Q

If you’re trying to use your browser, but you’re being redirected to another site, what can this indicate, and how can it be fixed?

A

This can indicate that there is malware in your system. Remedies include restoring from a known good backup and using an anti-virus/anti-malware cleaner

41
Q

True or False: Malware removal is always the best practice for removing malware.

A

False; It is never best practice, as it is hard to tell if all the malware has been removed.

42
Q

What are some symptoms of a malware infection?

A

*Odd error messages(App failures, security alerts)
*System performance issues (slow boot, slow apps)

43
Q

Why is quarantining an infected device good practice for protecting your systems from malware invasion?

A

You’d wanna disconnect the device from the network to keep the malware from spreading to another system, as this will make removal a lot more difficult

44
Q

Why is using restore points an ineffective way of ridding malware?

A

Although restore points make it easy to put your system back to a different configuration, malware has the capability of infecting those restore points as well. You might want to delete those restored points and disable system protection

45
Q

When it comes to anti-virus updates, is it better to have manual updates or automatic?

A

It’s best to have your updates set to automatic, as manual updates are almost pointless

46
Q

What is Windows Safe Mode?

A

This is a mode that loads the bare minimum OS. Booting a system like this can prevent malware or other bad stuff from running

47
Q

What is the Windows Preinstallation Environment (WinPE)?

A

This small operating system is used to install, deploy, and repair Windows desktop editions.

48
Q

What is the Windows Assessment and Development Kit?

A

This is what is used to build recovery consoles from bootable CDs, DVDs, and USBs

49
Q

If a mobile device is having app issues, such as the app not loading or having slow performance, how can you troubleshoot this?

A

*Restart the phone
*Stop the app and restart

iOS: Double-tap home | slide up, slide app up

Android: Settings/Apps, select app, Force stop

50
Q

How can you troubleshoot a mobile device if an app hangs or crashes?

A

*Restart the device
*Update the app
*Delete and reinstall the app

51
Q

If a mobile app is failing to update to a new version but other apps are still working, how can this be troubleshot?

A

*Check the app store to manually update (some stores require a valid method of payment on file)

*Restart the device

*Check available storage

52
Q

The OS in a mobile device fails to update, how can we troubleshoot this?

A

*Check available storage

*Check download bandwidth (if the download is very slow, increase bandwidth)

*Try a different network connection

*Restart the device

53
Q

If your device has significant issues with its battery life from constant network searching or an aging battery, how can we troubleshoot these issues?

A

*Disable unnecessary features such as 802.11 wireless, Bluetooth, or GPS

*Check app battery usage
iOS/iPadOS: Settings>Battery
Android: Settings>Battery

54
Q

If your mobile device reboots during normal operation randomly, how can you remedy this problem?

A

*Check the OS and app versions, and make sure there are no updates available

*Perform a hardware check, check the battery health

*If all fails, contact tech support for options

55
Q

If you have intermittent network connectivity with a mobile device, what can you do to help with the issue?

A

*Move closer to the access point
*Try a different access point

56
Q

If you have no WiFi connectivity with your mobile device, what are some solutions?

A

*Check/enable WiFi on the mobile device

*Check security key configuration, make sure the proper key is provided to the network

*Hard reset the router

57
Q

If you have no Bluetooth connectivity with your mobile device, how can we fix the problem?

A

*Check/enable Bluetooth

*Check/pair Bluetooth component

*Hard reset Bluetooth device to restart Bluetooth subsystem

58
Q

If NFC is not working on your device, though there are limited troubleshooting options, what are they?

A

*Check if NFC is enabled

*Restart device

*If payment-related, delete the card and add it back

59
Q

If AirDrop is not working on an iOS device, how can you troubleshoot it?

A

*Make sure devices are at least 30 feet from each other

*Turn on WiFi and Bluetooth

*Check Airdrop discovery options

60
Q

If your mobile device screen is not rotating after you orient the device, what are some ways to troubleshoot this?

A

*Disable rotation lock

*Restart the app

*Restart the device if the issue persists

*Contact device support if all fails

61
Q

What is sideloading?

A

Sideloading: Transferring files between two local devices, usually used in the context of downloading apps from a third-party source on a mobile device

62
Q

What is developer mode used for?

A

This mode contains tools and settings that are useful for developing apps. It also contains settings for demo mode and the device’s memory stats

63
Q

What does it mean to gain root access on a mobile device (jailbreaking for iOS)?

A

This is a method of gaining permission to install custom firmware into the mobile device and circumventing security features, allowing you to sideload apps without using an app store

64
Q

What is application spoofing?

A

A technique for attempting to acquire PII in the form of an application that fronts itself as something useful/helpful.

65
Q

What is xcode?

A

This is Apple’s developer environment, designed primarily for mobile app development.

66
Q

What can you use to monitor the network traffic flow on a mobile device?

A

Built-in data use report, or a trusted third-party reporting app

67
Q

What is a built-in Android feature that can set a warning and limit to get a notification when traffic is excessive?

A

Data-usage limit notification. This feature can be enabled somewhere in the “data-usage” section of your settings

68
Q

If you are having sluggish response time on your mobile device, how can you troubleshoot the issue?

A

*Restart the device

*Check the OS and apps for any updates

*Close apps that aren’t in use

*Factory-reset

69
Q

If you suspect malware on a mobile device, how can you check?

A

Anti-malware scanner/utility

70
Q
A

A+ Core II (4 decks)

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