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單項(xiàng)選擇題

Which of the following wireless standards has a transfer speed of 11 Mbps?（）

A. 802.11a
B. 802.11b
C. 802.11g
D. 802.11n

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單項(xiàng)選擇題

RG-59 is a designation for which of the following cable types?（）

A. Plenum
B. Fiber optic
C. Twisted pair
D. Coaxial

單項(xiàng)選擇題

A user’s laptop does not produce sound even though the volume settings are at maximum in theoperating system. Which of the following would MOST likely resolve this issue?（）

A. A new sound card
B. A new speaker
C. A BIOS update
D. A hardware volume control