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

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Computer Networking
Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?

Electronic newspaper
None of these
Electronic mail
Global network
Paperless office

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