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單項選擇題

Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0， what is the correct networkaddres？（）

A.172.16.16.0
B.176.24.0.0
C.172.16.0.0
D.172.16.28.0

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單項選擇題

What is the name of the VTP mode of operation that enables a switch to forward only VTPadvertisements while still permitting the editing of local VLAN information?（）

A.server
B.client
C.tunnel
D.transparent

單項選擇題

Which command can be arouter to verify the layer 3 path to a host?（）

A.traceroute address
B.tracert address
C.ssh address
D.telnet address

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