Computer Networking
Which of the following device is used with an X.25 network to provide service to asynchronous terminals

repeater
Packet assembler/disassemble
gateway
bridges
None of these

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Computer Networking
MAC is

network access standard for connecting stations to a circuit-switched network
a method of determining which device has access to the transmission medium at any time
None of these
a very common bit-oriented data link protocol issued to ISO.
a method access control technique or multiple-access transmission media

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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?

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

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