Which flag in hping3 would you use to collect the TCP sequence numbers generated by the target?

Which flag in hping3 would you use to collect the TCP sequence numbers generated by the target?

• A. -S
• B. -Q
• C. -2
• D. --tcp-timestamp

Answer: (B)

Collecting the target’s TCP sequence numbers relies on displaying the sequence field from the packets that come back. The flag that makes hping3 show those sequence numbers in the output is the one that instructs the tool to report the TCP sequence numbers from replies. Using that flag directly surfaces the ISN and subsequent sequence values, which is exactly what you need for this task. Other options alter what you send or what you display, but they don’t reveal the sequence numbers. For example, sending a packet with the SYN flag changes how the target replies but doesn’t automatically print the sequence values; requesting TCP timestamps, on the other hand, would show timestamp data instead of the sequence numbers.

Collecting the target’s TCP sequence numbers relies on displaying the sequence field from the packets that come back. The flag that makes hping3 show those sequence numbers in the output is the one that instructs the tool to report the TCP sequence numbers from replies. Using that flag directly surfaces the ISN and subsequent sequence values, which is exactly what you need for this task.

Other options alter what you send or what you display, but they don’t reveal the sequence numbers. For example, sending a packet with the SYN flag changes how the target replies but doesn’t automatically print the sequence values; requesting TCP timestamps, on the other hand, would show timestamp data instead of the sequence numbers.