An IPv4 packet has arrived with the first few hexadecimal digits shown below. How many hops can this packet travel before being dropped, and to which upper-layer protocol does the data belong?
(54000018 00100110 040601…)₁₆
Pick an option to check yourself, or open the answer below.
Show answer & explanation
Correct answer: D. 4 hops, TCP
Explanation
Byte 9 of the header is the TTL = 0x04, so 4 hops. Byte 10 is the protocol = 0x06, which is TCP.More Data Communication and Computer Networks questions
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