$1.(12$ points$)$ Convert the following IP addresses from dotted decimal notation to binary notation:

a$.222\mathrm{.}142\mathrm{.}67\mathrm{.}98$

b$.34\mathrm{.}192\mathrm{.}107\mathrm{.}28$

c$.134\mathrm{.}125\mathrm{.}15\mathrm{.}135$

$2.(8$ points$)$ Convert the following IP addresses from binary notation to dotted decimal notation:

a$\mathrm{.}10100101111010111101101100111101$

b$.01100101110000110111101100110101$

$3.(6$ points$)$ Find the netid and hostid of the following classful IP addresses:

a$.222\mathrm{.}142\mathrm{.}67\mathrm{.}98$

b$.34\mathrm{.}192\mathrm{.}107\mathrm{.}28$

c$.134\mathrm{.}125\mathrm{.}15\mathrm{.}135$