Computer Networking
A switch has been configured for three different VLANs: VLAN2, VLAN3, and VLAN4. A router has been added to provide communication between the VLANs. What type of interface is necessary on the router if only one connection is to be made between the router and the switch?

1Gbps Ethernet
100Mbps Ethernet
10Mbps Ethernet
56Kbps Serial

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Computer Networking
You type the following command into the router and receive the following output:Router#show serial 0/0 ^% Invalid input detected at '^' marker.Why was this error message displayed?

The router does not have a serial0/0 interface.
You cannot have a space between serial and 0/0.
You need to be in privileged mode.
Part of the command is missing.

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