The network address of 172.16.0.0/19 provides how many subnets and hosts?
A.7 subnets, 30 hosts each
B.
8 subnets, 8,190 hosts each
C.8 subnets, 2,046 hosts each
D.7 subnets, 2,046 hosts each
Answer: B
A CIDR address of /19 is 255.255.224.0. This is a Class B address, so that is only 3 subnet bits, but it provides 13 host bits, or 8 subnets, each with 8,190 hosts.