Number of possible hosts (not addresses) for /32 and /31 ​​subnets?

Question

Computer networks

Number of possible hosts (not addresses) for /32 and /31 ​​subnets?
What about Broadcast? Network address?

Answer 1

/32 = 1 host (1 address).
/31 = 2 hosts (2 addresses).
/32 is used only in routing (route to one host) and for all sorts of perversion lovers.
/31 is only used in point-to-point connections (eg VPNs). These are just 2 hosts that can only communicate with each other (one of them, however, can be a gateway to other networks).

Answer 2

Mask /31 exception (RFC3021). Used for two-host connections. Who do not need gateways and broadcasts. ;)