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."

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

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Computer Networking
Which of the following characteristic(s) is/are suited to the PSS applications?

widely dispersed terminals and access to international packets switched services
All of these
Multiple remote host or applications accessed by a single local access circuit terminal and circuit
bursty traffic and low communications intensity
None of these

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