If an ethernet port on a router was assigned an IP address of 172.16.112.1/20, what is the
maximum number of hosts allowed on this subnet?

A.
8190

B.
1024

C.
4094

D.
4096

E.
2046

Explanation:
Given IP address of 172.16.112.1 / 20,
subnet mask: 255.255.240.0
max. num of hosts =(( 2^12) -2 ) = 4096-2 = 4094