$1.$ At the command prompt, type sudo nmap $$sT $127\mathrm{.}0\mathrm{.}0\mathrm{.}1$ and press Enter. Note the services that are started and the port numbers listed.

a$.$ What is the service associated with port $631/$tcp$?$

b$.$ What machine does the IP address $127\mathrm{.}0\mathrm{.}0\mathrm{.}1$ connect us to$?$

c$.$ What is the purpose of the $-$sT$$ option in the above command?

d$.$ What option would we specify to scan for UDP ports?

What is the service associated with port $53/$udp$?$