Go back to EX0-106 - SCNS Tactical Perimeter Defense

Question :-

During a network packet capture in Wireshark, you capture ICMP traffic, and are analyzing this capture. In an ICMP Message, what is the function of the first eight bits?
To define the source port number
To define the type
To define the destination port number
To define the IP Version
To define the upper layer protocol

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