IPv$4,$ Class C Subnetting Exercise

The Class C subnets for a $/27$ CIDR are:

$\backslash$table$[[$IP Subnetwork,Host IP Range,Broadcast Address$],[192\mathrm{.}168\mathrm{.}1\mathrm{.}32,\mathrm{.}33--\mathrm{.}62,192\mathrm{.}168\mathrm{.}1\mathrm{.}63],[192\mathrm{.}168\mathrm{.}1\mathrm{.}64,\mathrm{.}65--\mathrm{.}94,192\mathrm{.}168\mathrm{.}1\mathrm{.}95],[192\mathrm{.}168\mathrm{.}1\mathrm{.}96,\mathrm{.}97--\mathrm{.}126,192\mathrm{.}168\mathrm{.}1\mathrm{.}127],[192\mathrm{.}168\mathrm{.}1\mathrm{.}128,\mathrm{.}129--158,192\mathrm{.}168\mathrm{.}1\mathrm{.}159],[192\mathrm{.}168\mathrm{.}1\mathrm{.}160,\mathrm{.}161--\mathrm{.}190,192\mathrm{.}168\mathrm{.}1\mathrm{.}191],[192\mathrm{.}168\mathrm{.}1\mathrm{.}192,\mathrm{.}193--\mathrm{.}222,192\mathrm{.}168\mathrm{.}1\mathrm{.}223]]$

A network administrator says the address to manually assign to a new printer is: $192\mathrm{.}168\mathrm{.}1\mathrm{.}133/27$

Is this an appropriate$/$correct IP address and CIDR for the printer?

If yes, which IP Subnetwork is this device in$?$

What is the 'magic number" in this case?

What is the subnet mask in decimal form?

What is the value in Binary of the subnet mask's $4^{th}$ octet?

With only this address used so far in this subnet, how many remain for assignment to other devices?

Can $192\mathrm{.}168\mathrm{.}1\mathrm{.}128$ be used for a device? If no$,$ why?

Can $192\mathrm{.}168\mathrm{.}1\mathrm{.}191$ be used for a device? If no$,$ why?