Hardware & Network Troubleshooting第 92 / 100 题
A user reports the mouse and keyboard are unresponsive but the display works. What is a quick first step?
a.Replace the motherboard
b.Update the BIOS
c.Reinstall the OS
d.Check USB connections and try different ports
解析
Unresponsive input devices are often loose or on a bad port, so reconnecting or trying different USB ports is the fastest first step. Major actions like OS reinstall or board replacement are premature.
免费刷完整 100 道题库 — 无需注册。
同考点相关题目
- A PC boots to a black screen with a blinking cursor and no OS load. What is a reasonable check?
- Which tool measures voltage output from a power supply's connectors?
- A network cable run seems dead. Which tool verifies the wiring is terminated correctly end to end?
- After a Windows update, a specific device stops working. What is the most targeted fix to try first?
- A user says 'the internet is slow.' Which step best narrows the cause?
- A laptop screen is very dim but an external monitor works fine. What is the likely faulty component?