What command$-$line tool can you use to quickly determine your computer's IP address?

Try the following on the command line. What address do you get in each case? Why are they different?

a$)$ nslookup

google.com

b$)$ nslookup

google.com $8\mathrm{.}8\mathrm{.}8\mathrm{.}8$

c$)$ nslookup

google.com $1\mathrm{.}1\mathrm{.}1\mathrm{.}1$