單項選擇題

A technician is looking for an emergency connection solution not reliant on local data or power
services.
Which of the following should the technician implement?（）

A.Satellite
B.ADSL
C.ISDN
D.OC-3

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單項選擇題

All of the following will interfere with a 2.4GHz wireless phone EXCEPT:（）

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

單項選擇題

Which of the following devices could be configured as a DHCP server?（）

A. Wireless router
B. Unmanaged switch
C. Hub
D. Repeater