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單項選擇題

A technician is reporting wireless transmission speeds of 300Mbps. Which of the following wireless standards is being used?（）

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

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單項選擇題

A new company has been given one public IP address. The company employs 200 users requiring Internet access from the headquarters.
Which of the following can be implemented to provide Internet access for all the employees?（）

A. Multicasting
B. Proxy server
C. NAT
D. Subnetting

單項選擇題

An administrator is unable to ping a workstation. Which of the following tools would BEST help toresolve the issue?（）

A. Cable tester
B. Multimeter
C. Toner probe
D. Protocol analyzer

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