The two fundamental approaches to moving data through a network of links and switches are
transmission and propagation
bandwidth and transmission rate
packet and circuit switching
messages and packets
none of the above

Packet and circuit switching

Explanation: Packet switching is the technique through which the data is sent from the source to destination in the form of data packets on dynamic path.It is the time of connectionless switching and route generates for each packet.

Circuit switching is the switching technique having connected path for the sending and receiving of the data.They have well defined and established path for the transmission of data.

Other options are incorrect because they define the terms that are associated with the data that gets transmitted like bandwidth,transmission rate ,packet etc. These options are not the way in which data transmitted or switched.Thus, the correct option is packet and circuit switching.

d. local area network (lan)

explanation:

a local area network (lan) is a collection of computers it connected to one another or to a common connection medium.

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