100-140 Question 172
Select 3A user reports that a newly connected USB scanner is not being detected by their computer. As a Cisco Certified Support Technician, what steps should you take to troubleshoot this issue?
- A
Check if the scanner is powered on and properly connected to the computer.
- B
Verify that the USB port being used is functional by testing it with another device.
- C
Uninstall all USB drivers on the computer and reinstall them from scratch.
- D
Ensure the correct scanner drivers are installed and compatible with the operating system.
- E
Check the scanner tray for any paper jams or obstructions.
Show answer and explanation
Correct answers: A, B, D
Explanation
When troubleshooting a scanner that is not being detected, it is important to follow a systematic approach. Start by checking the basics, such as power and connections. Then, verify the functionality of the USB port to rule out hardware issues. Finally, ensure that the correct drivers are installed and compatible with the operating system. These steps address the most likely causes of the problem, ensuring an efficient resolution.
- A. Correct.
Ensuring the scanner is powered on and properly connected is a basic but essential step in troubleshooting hardware detection issues. A loose connection or lack of power can prevent the scanner from being recognized.
- B. Correct.
Testing the USB port with another device can confirm whether the port itself is functional. If the port is faulty, the scanner will not be detected.
- C. Incorrect.
Uninstalling all USB drivers is unnecessary and may cause additional issues. Instead, focus on verifying the drivers specific to the scanner.
- D. Correct.
Installing the correct and compatible drivers is crucial for the scanner to function properly. Without the appropriate driver, the operating system may not recognize the scanner.
- E. Incorrect.
Checking the scanner tray for paper jams is not relevant to the issue of the scanner not being detected, as this step pertains to operational, not connectivity, problems.