14.2 Circuit switching and packet switching

Question 1

Circuit switching

Answer 1

method of transmission in which a dedicated circuit/channel lasts throughout the duration of the communication

Question 2

Packet switching

Answer 2

method of transmission where a message is broken into packets which can be sent along paths independently from each other

Question 3

Hop number/hopping

Answer 3

number in the packet header used to stop packets which never reach their destination from ‘clogging up’ routes

Question 4

Header (data packet)

Answer 4

part of a data packet containing key data such as destination IP address, sequence number, and so on

Question 5

Routing table

Answer 5

a data table that contains the information necessary to forward a package along the shortest or best route to allow it to reach its destination