Which is a property of a circuit-switched network as opposed to a packetswitched
network?

A.
Physical, permanent connections exist from one point to another in a
circuit-switched network.

B.
The data is broken up into packets.

C.
Packets are reassembled according to their originally assigned
sequence numbers.

D.
The data is sent to the next destination, which is based on the router’s
understanding of the best available route.

Explanation:
The correct answer is “Physical, permanent connections exist from one point to another in a
circuit-switched network”. Permanent connections are a feature of circuit-switched networks.
Note: strictly speaking they aren’t physical and they aren’t permanent.
A phone call is circuit-switched (well, historically). The circuit wasn’t permanent, just for the
duration of the call.