A+ Troubleshooting Quiz: Hardware & Network Troubleshooting

1. Which command displays detailed network configuration on both Windows and Linux systems?

IPCONFIG (Windows) and IFCONFIG (Linux)

NETSTAT only

NSLOOKUP only

ARP only

2. A USB device is not recognized by the system. Which troubleshooting step should be attempted first?

Reinstall the operating system

Try the device in a different USB port

Replace the device

Update the motherboard BIOS

3. When establishing a theory during troubleshooting, what should you do if the initial theory is unlikely?

Implement the solution immediately

Establish a new theory and test it

Give up and replace the hardware

Call the manufacturer

4. A system experiences frequent application crashes. Event Viewer shows memory-related errors. What is the most probable cause?

Faulty RAM module

Outdated drivers

Virus infection only

Insufficient disk space

5. When using TRACERT command, what does each hop represent in the output?

A router along the path to the destination

A DNS server

A firewall

A network switch

6. A printer produces garbled or faded output. Paper quality and toner appear normal. What should you check?

Replace the entire printer

Clean the printer heads and check fuser assembly

Update printer firmware only

Change the paper type

7. Which tool is used to manage disk partitions and volumes in Windows?

Disk Cleanup

Disk Management

System File Checker

Defragmentation Tool

8. A user cannot access a shared network resource despite correct credentials. Which should you verify first?

Reset the user password

Network connectivity and share permissions

Reinstall the operating system

Replace the network card

9. When troubleshooting a blue screen of death (BSOD), where are dump files typically stored?

C:\Windows\Temp

C:\Windows\Minidump

C:\Users\AppData

C:\Program Files

10. A device manager shows unknown devices with yellow exclamation marks. What is the most efficient next step?

Delete the devices

Download and install appropriate drivers

Restart Windows in Safe Mode

Replace the motherboard

11. A user reports their monitor displays no image after power-on. The power light is off. What is the first troubleshooting step?

Replace the monitor

Check power cable connection and outlet

Update display drivers

Test with a different graphics card

12. A system boots to BIOS setup repeatedly instead of the operating system. What is the primary cause?

CMOS battery is dead

Boot order is incorrect or drive is not recognized

CPU is failing

RAM is faulty

13. When replacing a hard drive, what is the critical first step before opening the computer case?

Update BIOS

Disconnect power and ground yourself

Back up all data

Remove the battery

14. A user experiences intermittent Wi-Fi disconnections. Signal strength is strong. What is the most likely cause?

Weak router antenna

Interference from other devices or channels

Defective network card

Router is too old

15. Which tool is best for testing network cable integrity and detecting shorts?

Multimeter

Cable tester

Loopback plug

Protocol analyzer

16. A computer fails to boot and shows a BIOS error code. Where should you look for the error definition?

Device Manager

Event Viewer

Motherboard manual

Windows System Restore

17. When troubleshooting network connectivity, which OSI layer does PING operate on?

Layer 2 (Data Link)

Layer 3 (Network)

Layer 4 (Transport)

Layer 7 (Application)

18. A laptop randomly shuts down under load. Temperature monitoring shows normal readings. What is a likely cause?

Faulty power supply or battery

Overheating CPU

Malicious software only

Broken display hinge

19. A network printer stops responding to print jobs. Network connectivity appears normal. What should you check first?

Replace the printer

Restart the print spooler service

Reinstall all network drivers

Replace the network cable

20. Which of the following is the correct order of the CompTIA troubleshooting methodology?

Identify, test, implement, document

Identify, establish theory, test, implement, verify, document

Test, identify, verify, implement, document

Implement, identify, test, verify, document

A+ Troubleshooting Quiz: Can You Fix It Fast?