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Computer Networks
Ipv4
Q
The data field cannot carry which of the following?
AA. Tcp segment
BB. Udp segment
CC. Icmp messages
DD. SMTP messages
Correct Answer:
D. D. SMTP messages
Explanation:
Data field usually has transport layer segments, but it can also carry ICMP messages. SMTP is an application layer protocol. First it must go through the transport layer to be converted into TCP segments and then it can be inserted into IP packets.