What are two ways to represent a network mask that would allow 8$8$ hosts?

Question 4$4$Answer

a.$.$

255.255.224.0$255\mathrm{.}255\mathrm{.}224\mathrm{.}0$

b.$.$

255.255.255.224$255\mathrm{.}255\mathrm{.}255\mathrm{.}224$

c.$.$

255.255.255.240$255\mathrm{.}255\mathrm{.}255\mathrm{.}240$

d.$.$

255.255.240.0$255\mathrm{.}255\mathrm{.}240\mathrm{.}0$