Troubleshooting

Question 1

What is the first step in the CompTIA troubleshooting methodology?

Answer 1

Identify the problem

Question 2

What is the second step in the CompTIA troubleshooting methodology?

Answer 2

Establish a theory of probable cause

Question 3

What is the third step in the CompTIA troubleshooting methodology?

Answer 3

Test the theory to determine cause

Question 4

What is the fourth step in the CompTIA troubleshooting methodology?

Answer 4

Establish a plan of action

Question 5

What is the fifth step in the CompTIA troubleshooting methodology?

Answer 5

Implement the solution

Question 6

What is the sixth step in the CompTIA troubleshooting methodology?

Answer 6

Verify functionality and preventive measures

Question 7

What is the seventh step in the CompTIA troubleshooting methodology?

Answer 7

Document findings and outcomes

Question 8

What causes a ‘No bootable device’ error?

Answer 8

Boot order incorrect or drive failure

Question 9

What causes an ‘Invalid boot disk’ error?

Answer 9

External media present or corrupted MBR

Question 10

What causes a ‘No operating system found’ error?

Answer 10

Missing or corrupted boot loader

Question 11

What causes a black screen after BIOS?

Answer 11

Graphics driver or hardware failure

Question 12

What causes a blue screen during boot?

Answer 12

Driver conflict or hardware failure

Question 13

What causes slow boot time?

Answer 13

Too many startup programs or failing drive

Question 14

How can you fix a boot order issue?

Answer 14

Enter BIOS/UEFI and set correct boot device

Question 15

How can you repair the Windows boot loader?

Answer 15

bootrec /fixmbr, /fixboot, /rebuildbcd

Question 16

What command is used to fix corrupted system files?

Answer 16

sfc /scannow from recovery environment

Question 17

How can you resolve driver issues during boot?

Answer 17

Boot to Safe Mode and update/rollback drivers

Question 18

What are signs of insufficient RAM in performance issues?

Answer 18

Slow system performance, high memory usage

Question 19

What can cause high CPU usage?

Answer 19

Malware, runaway processes, insufficient cooling

Question 20

What causes system freezing?

Answer 20

Overheating, bad RAM, driver conflicts

Question 21

How can you resolve slow performance?

Answer 21

Add RAM, malware scan, disk cleanup, defrag

Question 22

What can address memory issues?

Answer 22

Close programs, add RAM, check for memory leaks

Question 23

What can improve file access?

Answer 23

Run chkdsk, defragmentation, replace failing drive

Question 24

What causes an application not to start?

Answer 24

Missing dependencies, corrupted files, insufficient permissions

Question 25

What causes application crashes?

Answer 25

Memory issues, software bugs, compatibility problems

Question 26

What might cause slow application performance?

Answer 26

Insufficient resources, background processes, malware

Question 27

How can you fix application startup issues?

Answer 27

Reinstall, check dependencies, run as administrator

Question 28

What can resolve application crashes?

Answer 28

Update software, check compatibility mode, more RAM

Question 29

What can cause no internet connection?

Answer 29

ISP outage, router failure, incorrect settings, malware

Question 30

What are common causes of slow internet?

Answer 30

Bandwidth limitations, network congestion, malware

Question 31

How can you restore internet connection?

Answer 31

Check cables, restart router/modem, verify settings

Question 32

What causes printer not to be detected?

Answer 32

Driver issues, connection problems, power issues

Question 33

What causes print quality problems?

Answer 33

Low ink/toner, dirty printheads, wrong paper settings

Question 34

How can you fix printer detection issues?

Answer 34

Reinstall drivers, check connections, power cycle

Question 35

What might cause a device not to turn on?

Answer 35

Dead battery, hardware failure, software corruption

Question 36

What can improve battery life on a mobile device?

Answer 36

Close background apps, reduce brightness, battery replacement

Question 37

What are signs of a malware infection?

Answer 37

Slow performance, pop-ups, changed homepage, new programs

Question 38

How can you remove malware?

Answer 38

Run antivirus scan, boot from external drive, system restore

Question 39

What are signs of RAM failure?

Answer 39

Random crashes, blue screens, memory errors

Question 40

What can address hard drive failure?

Answer 40

Run disk check, backup data immediately, replace drive

Question 41

What might indicate OS corruption?

Answer 41

Boot errors, missing files, system instability

Question 42

What are common causes of email sending problems?

Answer 42

SMTP settings, authentication, port blocking

Question 43

How can you fix sync issues in email?

Answer 43

Refresh account, check connectivity, reconfigure settings