For a computer to communicate over the Internet, it must use

For a computer to communicate over the Internet, it must use

For a computer to communicate over the Internet, it must use

a) The TCP protocol
b) The IP protocol
c) The combined TCP/IP protocol
d) The Ethernet protocol
e) The ARPANET protocol

Answer:  c.

IP is the Internet Protocol, but the TCP (Transmission Control Protocol) also must be used because it handles such problems as how to piece together packets of the same message that arrive out of order.  Ethernet is a LAN protocol, which might be used in addition to TCP/IP in some networks, but it is not needed to communicate over the Internet.  There is no such thing as the ARPANET protocol.