Explanation:

The Internet Protocol is the principal commuinications protocol in the Internet protocol in the internet protocol suite for relaying datagrams across network boundaries.Its routing function enables internetworking and essentially establishes the Internet.User Datagram Protocol is part of the internet protocol suite used by programs running on different computers on a network.TCP/IP stands for transmission Control Protocol/Internet Protocol,which is a set of networking protocols that allows two or more computers to communicate.Telnet is a protocol that allows you to connect to remote computers over a TCP/IP network.Hence,PPT is not a protocol.