Computer Networking
Which of the following types of channels moves data relatively slowly?

broadband channel
None of these
voiceband channel
narrowband channel
wideband channel

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Computer Networking
RS-232-G

None of these
is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
specifies only the mechanical characteristics of an interface by providing a 25-pin connector
is an interface between two data circuit terminating equipment as examplified by a local and remote modem
requires only 7 pin out of 25 in order to transmit digital data over public telephone lines

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

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