Subnetting

Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts? (Choose three)
A – 15.234.118.63
B – 92.11.178.93
C – 134.178.18.56
D – 192.168.16.87
E – 201.45.116.159
F – 217.63.12.192

Answer:
255.255.255.224

-> 256 - 224 = 32 host
 0-31, 32-63, 64-95, 96-127, 128-159, 160-191, 192-223

A.
-> 15.234.118.63 = broadcast
 B.
-> 92.11.178.93 = host
C.
-> 134.178.18.56 = host
D.
-> 192.168.16.87 = host
E
-> 201.45.116.159 = broadcast
F
 ->217.63.12.192 = network

The answer is B, C, D.
To answer this question, you only to found how much host in the segment or subnet. if you have found, an then you can found ip network, ip broadcast, and all of ip host in the subnet.