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單項(xiàng)選擇題

Which of the following devices is used to move frames between a source and destination basedon a MAC address?（）

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

單項(xiàng)選擇題

A technician replaces a user’s 15 inch LCD with a 20 inch LCD. Later, the user informs thetechnician that icons are very large and the text on the monitor is fuzzy and distorted. Which of the following is MOST likely the cause?（）

A. The contrast setting needs to be raised from the default.
B. The monitor firmware was not updated.
C. The new monitor has a different native resolution.
D. The monitor needs to be degaussed to clarify the picture.