单选题

After booting up a new computer， a technician observes that the USB ports are not working with any USB devices. Which of the following should be done FIRST？（）

发布日期：2020-04-10

Check the computer to verify that the jumper settings for USB are correct.

Connect the USB devices to a different computer to test the devices.

Buy new USB wires and test USB functionality.

Check the BIOS to verify that USB functionality is enabled.

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