Computer Networking
Which three statements are true about the operation of a full-duplex Ethernet network?1. There are no collisions in full-duplex mode.2. A dedicated switch port is required for each full-duplex node.3. Ethernet hub ports are preconfigured for full-duplex mode.4. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.5. The host network card and the switch port must be capable of operating in full-duplex mode.

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

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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?

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

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Computer Networking
You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be?

The switch port the host is connected to is not configured to the correct VLAN membership.
The router is not configured for the new host.
The host has an invalid MAC address.
The VTP configuration on the switch is not updated for the new host.

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Computer Networking
Demodulation is a process of

multiplexing various signals into one high speed line signals
performing data description.
converting digital to analog signals
converting analog to digital signals

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