Which Protocols are used for PING?

Question

Okay, I know that the answer to this question is ICMP - all my textbooks are saying so, the Internet is saying so, everyone is saying so... except for my TA. According to this T

Answer 1

Internet Control Message Protocol

http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol

ICMP is built on top of a bunch of other protocols, so in that sense your TA is correct. However, ping itself is ICMP.