What is the length of an ICMP data field for an Ethernet frame that is carrying an IP datagram with a 20 byte header, an ICMP message with a header length of 8 bytes and the Ethernet data field is 480 bytes long?
A. 452 bytes
B. 480 bytes
C. 256 bytes
D. 280 bytes
Answer:A
What is the length of an ICMP data field for an Ethernet frame that is carrying an IP datagram with a 20 byte header, an ICMP message with a header length of 8 bytes and the Ethernet data field is 480 bytes long?
A. 452 bytes B. 480 bytes C. 256 bytes D. 280 bytes