Final answer:
The subject of this question is Networking and it deals with the Data plane.
Step-by-step explanation:
The subject mentioned in the question is Networking. Specifically, it deals with the Data plane. The data plane is responsible for handling the encapsulation and decapsulation of packets, adding or removing trunk headers, managing the MAC table, routing tables (IP addresses), encryption, Network Address Translation (NAT), and Access Control Lists (ACLs).