單項選擇題

Which of the following is MOST likely a managed, Layer 3 device?（）

A.Router
B.Bridge
C.Hub
D.Switch

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單項選擇題

A user is experiencing headaches and motion sickness symptoms when using their new computermonitor. Which of the following can a technician adjust to help the user?（）

A. Privacy filter
B. Refresh rate
C. Use a digital signal
D. Brightness

單項選擇題

A technician is installing a new power supply into a computer. One of the power supply connectors that the technician needs to connect to the motherboard is square and contains 4-pins. This connector is known as which of the following?（）

A.SATA
B.FDD
C.IDE
D.ATX