Computer Networking
ICMP (Internet Control Message Protocol) is

a protocol used to monitor computers
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
None of these
a TCP/IP high level protocol for transferring files from one machine to another
a protocol that handles error and control messages

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

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