what valid host range is the IP address 172.16.10.22 255.255.255.240 a part of?A.172.16.10.20 through 172.16.10.22B.172.16.10.1 through 172.16.10.255C.172.16.10.16 through 172.16.10.23D.172.16.10.17 through 172.16.10.31E.172.16.10.17 through 172.16.1

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what valid host range is the IP address 172.16.10.22 255.255.255.240 a part of?A.172.16.10.20 through 172.16.10.22B.172.16.10.1 through 172.16.10.255C.172.16.10.16 through 172.16.10.23D.172.16.10.17 through 172.16.10.31E.172.16.10.17 through 172.16.1
what valid host range is the IP address 172.16.10.22 255.255.255.240 a part of?
A.172.16.10.20 through 172.16.10.22
B.172.16.10.1 through 172.16.10.255
C.172.16.10.16 through 172.16.10.23
D.172.16.10.17 through 172.16.10.31
E.172.16.10.17 through 172.16.10.30
对IP子网划分不了解,选哪个?并而把原因也写出来,

what valid host range is the IP address 172.16.10.22 255.255.255.240 a part of?A.172.16.10.20 through 172.16.10.22B.172.16.10.1 through 172.16.10.255C.172.16.10.16 through 172.16.10.23D.172.16.10.17 through 172.16.10.31E.172.16.10.17 through 172.16.1
答案是 E：172.16.10.17 172.16.10.30
子网掩码尾240化为二进制是（1111,0000）.前面24+4位已经固定,网络号28位,主机号4位.
22换成二进制是（0001.0110 ）,0001 为固定数码,只剩后面四位来安放IP,所以最多可以有16个,然后再除去一个网络地址和一个广播地址.
合法主机地址范围即是：172.16.10.17到172.16.10.30

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