Answer:
1. Destination IP address
2. Destination Port number
Explanation:
Demultiplexing is a term that describes a procedure of transforming a signal that has multiple analog or digital signal flows into different initial and unconnected signals.
Hence, in this situation, the correct answer is that for the demultiplexing process, a UDP (User Datagram Protocol) socket is identified by both the destination IP address and destination port number
