Computer Networking
Which of the following TCP/IP protocol allows an application program on one machine to send a datagram to an application program on another machine?

VMTP
UDP
X.25
None of these
SMTP

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Computer Networking
What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

Forwards the switch to the first available link
Drops the frame
Sends back a message to the originating station asking for a name resolution
Floods the network with the frame looking for the device

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