The enable secret password is case sensitive, so the second option is wrong. To set the enable secret <password>, use the enable secret <password>command from global configuration mode.
The commands show protocols, show interfaces, and show ip interface will show you the layer 1 and 2 status and the IP addresses of your router's interfaces.
What layer of the OSI model would you assume the problem is in if you type show interface serial 1and receive the following message? "Serial1 is down, line protocol is down."
If you see that a serial interface and the protocol are both down, then you have a Physical layer problem. If you see serial1 is up, line protocol is down, then you are not receiving (Data Link) keepalives from the remote
With the show interfaces command, you can view the configurable parameters, get statistics for the interfaces on the router, verify if the interfaces are shut down, and see the IP address of each interface.
You need to find the broadcast address used on a LAN on your router. What command will you type into the router from user mode to find the broadcast address?
The command show ip protocols will actually show you the broadcast address for each interface - too bad it isn't a possible answer. Your best answer is show interfaces, which will provide the IP address and mask for each interface.
To copy the running-config to NVRAM so that it will be used if the router is restarted, use the copy running-config startup-config command (copy run start for short).
The show controllers serial 0 command will show you whether either a DTE or DCE cable is connected to the interface. If it is a DCE connection, you need to add clocking with the clock rate command.
To completely replace the running-config with the startup-config, you must reload the router. Note : You may have picked option C, which isn't a bad answer. Remember, though, it doesn't replace the configuration, it appends it.
If you delete the startup-config and reload the router, the router will automatically enter setup mode. You can also type setupfrom privileged mode at any time.
What is the problem with an interface if you type show interface serial 0and receive the following message? "Serial0 is administratively down, line protocol is down."
If an interface is shut down, the show interface command will show the interface as administratively shut down. (It is possible that no cable is attached, but you can't tell that from this message.)