The four TCP/IP protocols are the Transmission Control Protocol (TCP), the Internet Protocol (IP), the User Datagram Protocol (UDP), and the Internet Control Message Protocol (ICMP).
The four types of TCP/IP are the Application Layer, Transport Layer, Internet Layer, and Network Access Layer.
The four core protocols in the TCP/IP suite are the Transmission Control Protocol (TCP), the Internet Protocol (IP), the User Datagram Protocol (UDP), and the Internet Control Message Protocol (ICMP).
The five TCP/IP protocols are the Transmission Control Protocol (TCP), the Internet Protocol (IP), the Hypertext Transfer Protocol (HTTP), the Simple Mail Transfer Protocol (SMTP), and the File Transfer Protocol (FTP).