Find the netid and the hostid of the following classful IP addresses.

$11\mathrm{.}34\mathrm{.}2\mathrm{.}8$

$180\mathrm{.}56\mathrm{.}8\mathrm{.}6$

Find the subnet mask of $167\mathrm{.}98.\frac{56\mathrm{.}2}{23}$ in decimal form.

Find the slash notation of the following subnet masks

$255\mathrm{.}255\mathrm{.}248\mathrm{.}0$

$255\mathrm{.}128\mathrm{.}0\mathrm{.}0$

Find the block size $($host part$),$ the number of host addresses and the range of valid addresses in the following block $120\mathrm{.}10.\frac{20\mathrm{.}10}{22}$

Classful without subnetting:

Assume classful addressing mode in use. Given the address $205\mathrm{.}33\mathrm{.}11\mathrm{.}0.$ Find the following:

The address class:

The network mask in decimal and CIDR notation:

The maximum number of hosts on the network:

The address of the first host.