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Recently I am studying socket TCP/IP programming tutorial in which I learnt how to do stream , raw data and  all protocols such as ICMP, TCP etc...for sending and receiving in C/C++ programming.

Just want to know,. After the socket programming, the programmer is nothing  to do at this position
and they have no more to learn since NIC will handle this or do the follow-up for the request, Right ?

All  request or information from the socket C/C++ programming will be handled by our computer network interface cad(NIC)  by hardware program, and there is NO more networking programming after socket programming ?

And all firewall setting or configuration is handled by window system  for block sites  and that is  NOT handled  by NIC card, right ?


 Hope you understand my questions.

Please advise

Rwniceing

You got complete explanation
OSI model:
L1 CAT5 copper cable
(you ask this)
L2 Gigabit ethernet
L3 arp
L4 ip
(while studying this)
L5 tcp

network card is much lower level than sockets.
with localhost even no network card will be involved and sockets communicate.