N$6\mathrm{.}17.$ In a TCP session hijacking attack, if the server is waiting for data starting from

sequence number $x,$ but we used $x+100$ in our attack packet, will our attack succeed or

fail?

N$6\mathrm{.}21.$ UDP services can be used for amplification attacks. Why can't TCP be used for the

same attack?

N$6\mathrm{.}22.$ In the past, we wrote a SYN flooding program using Python, but we could never get

the attack to work; there is nothing wrong in the program. After a close look at the attack, we

found out that the speed of our Python program is too slow: it can only send out a few spoofed

packets in a second. We also found out that there are many Rest packets coming back to the

victim machine. Based on this observation, please explain why our Python program could not

get the attack to work.