单项选择题
Which of the following devices transmits timed broadcasts onto an active network?（）
A. Bridge
B. Unmanaged switch
C. DHCP client
D. Firewal
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单项选择题
When installing two 802.11g access points in the same building, which of the following channelswill MOST likely be used to minimize interference?（）
A.5 and 6
B.1 and 6
C.6 and 10
D.2 and 6 -
单项选择题
A common technique used to prevent the unauthorized network devices from sending trafficacross a network is port（）
A.spanning
B.address translation
C.mirroring
D.authentication -
单项选择题
Keyword and blacklist filtering would be handled at which level in a network?（）
A. Layer 2 managed switch
B. DHCP server
C. Hardware firewall
D. Bridge
