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

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Computer Networking
You have your laptop directly connected into a router's Ethernet port. Which of the following are among the requirements for the copy flash tftp command to be successful?1. TFTP server software must be running on the router.2. TFTP server software must be running on your laptop.3. The Ethernet cable connecting the laptop directly into the router's Ethernet port must be a straight-through cable.4. The laptop must be on the same subnet as the router's Ethernet interface.5. The copy flash tftp command must be supplied the IP address of the laptop.

3 and 5 only
2, 4 and 5
1, 3 and 4
5 only

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Computer Networking
What is a stub network?

A network with more than one exit point.
A network with more than one exit and entry point.
A network that has only one entry and exit point.
A network with only one entry and no exit point.

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