Fiber to the curb fttc Fiber to the premixes fttp
3g lawful intercept interface
fully qualified domain name (FQDN) mdns and the .local suffix. networks: sip header. session initiation protocol deep packet inspection (could be used to block dns over https, other uses?)
networks: digital signal processing sockets live in processes. connceted via system callls, network sockets like pipe but across different machines? fifo each way? maybe? check. what is a socket, what is a port, what is a protocol engineering/networks + fibre optic + copper + ethernet over mains wifi ethernet bluetooth linux kernel includes network stuff
network firmware? switch router gateway bridge access point modem packet
network linux kernel stuff include: + socket + netfliter + nftables + network protocols + packet scheduler + network device drivers
cell phones: cellular networks
each cell Base Tranceiver Station (BTS)
Baseband on phone