Question B$4$

$($a$)$ Given the classful IP address $171\mathrm{.}168\mathrm{.}12\mathrm{.}3.$ Find

i$.$ the class

ii$.$ the network mask

iii. the network address

iv$.$ the broadcast address.

$(1$ mark$)$

$(1$ mark$)$

$(1$ mark$)$

$(1$ mark$)$

$($b$)$ Given the classless IP address $23\mathrm{.}41\mathrm{.}13\mathrm{.}66/21.$ Find

i$.$ the network mask

ii$.$ the network address

iii. the broadcast address

iv$.$ the number of hosts supported by this network

$(1$ mark$)$

$(1$ mark$)$

$(1$ mark$)$

$(1$ mark$)$