Computer Networking
Which of the following is the valid host range for the subnet on which the IP address 192.168.168.188 255.255.255.192 resides?

192.168.168.128-192
192.168.168.129-190
192.168.168.129-191
192.168.168.128-190

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Computer Networking
What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

The administrator has the interface shut down.
The administrator is pinging from the interface.
The keepalives are different times.
No cable is attached.

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Computer Networking
Bus is

None of these
a continuous frequency capable of being modulated or impressed with a second signal
a collection of interconnected functional units that provides a data communications service among stations attached to the network
one or more conductors that some as a common connection for a related group of devices
the condition when two or more stations attempt to use the same channel at the same time

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