Computer Networking
Which of the following might be used by a company to satisfy its growing communications needs?

multiplexer
controller
All of these
concentrator
front-end processor

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Computer Networking
TCP is:

None of these
Connection orientated and unreliable
Connectionless and unreliable
Operates at the Data Link layer
Connection orientated and reliable

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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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