Define circuit switching and packet switching

Question 1

Circuit switching

Answer 1

dedicated physical path is established between two devices for the duration of the communication.

Question 2

Packet switching

Answer 2

data is divided into small packets and sent over a shared network.
Each packet contains the destination address and is sent independently through the network.

Packets can take different routes, but reassembled into original data once destination reached.

Internet is packet switched.