The IP header contains a protocol field. If this field contains the value of 1, what type of data is
contained within the IP datagram?

A.
TCP

B.
ICMP

C.
UDP

D.
IGMP

Explanation:

ICMP = 1 IGMP = 2 TCP = 6 UDP = 17 Pg. 55 Casad: Sams Teach Yourself TCP/IP in 24 hrs.