Computer Networking
Which of the following statements is correct for the use of packet switching?

the subdivision of information into individually addressed packets in conjunction with alternative routing arrangement enabled the transmission path to be altered in the event of congestion or individ
by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved.
None of these
the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied
All of these

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Computer Networking
Which statement describes a spanning-tree network that has converged?

All switch and bridge ports are either blocking or looping.
All switch and bridge ports are assigned as either root or designated ports.
All switch and bridge ports are in either the forwarding or blocking state.
All switch and bridge ports are in the forwarding state.

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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
Forwards the switch to the first available link
Drops the frame
Sends back a message to the originating station asking for a name resolution

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