TCP-IP is a protocol, not a transmission medium. Bandwidth doesn't affect it.
Yes.
IP (internet protocol)
Transmission Control Protocol Internet Protocol ... See the website link below
Telnet
SNMP
IPX/SPX
DNS is Domain name system for short . Domain name system maps a name to an address. Protocol that relies upon DNS is TCP/IP .tcpip protocol
File Transfer Protocol
Multiplexing
Sending or receiving application process.
EIGRP
The Network Layer in the TCP/IP model is responsible for routing data packets between different networks. It determines the best path for data to travel from the source to the destination through various interconnected networks. The Internet Protocol (IP) is the main protocol used at this layer to address and forward packets.