The network technician is planning to use the 255.255.255.224 subent mask on the network.which three valid IP addresses can the technician use for the hosts?(choose three)
A.
172.22.243.127
B.
172.22.243.191
C.
172.22.243.190
D.
10.16.33.98
E.
10.17.64.34
F.
192.168.1.160
Why?
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172.22.243.127 is a broadcast address, 172.22.243.191 is a broadcast address, 192.168.1.160 is a network address.
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From the subnet mask of 255.255.255.224 we learn:
Increment: 32
Network address: In the form of x.x.x.(0,32, 64, 96, 128, 160, 192, 224)
Broadcast address: In the form of x.x.x.(31,63,95,127,159,191,223)
-> All IP addresses not in the above forms are usable for host -> C D E are correct answers.
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Thank you IT Engineer. This is the best explanation for this question.
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