IP Subnetting - Test

got this one while browsing, IP subnetting test for me to learn :

You will be asked if the IP Address is a valid Host address or a valid Host address for a particular Subnet.

For Example:

124.59.10.1 /10

1. Find the Subnet = 124.0.0.0
2. Find the 1st Usable Host = 124.0.0.1
3. Find the Last Usable Host = 124.63.255.254
4. Find the Broadcast Address = 124.63.255.255

Questions :

1.) 55.110.67.205 /16
2.) 88.248.235.250 255.255.255.248
3.) 56.58.128.76 255.128.0.0
4.) 198.13.70.25 255.255.255.192
5.) 150.75.222.94 /18
6.) 198.134.190.70 /28
7.) 47.165.237.34 /21
8.) Is Ip address 79.246.255.1 with a subnet mask 255.224.0.0 a valid host ip address?
9.) 107.30.205.80 255.255.255.240
10.) Is 193.43.65.127 with a 255.255.255.192 mask a vaild Host IP address?
11.) 17.46.23.96 255.248.0.0
12.) 139.7.98.15 255.255.128.0
13.) 199.180.150.119 /26 can't communicate with 199.180.150.128 /26 what is the problem?
14.) 205.39.228.185 255.255.255.224
15.) 15.19.11.2 /15

the answers is on the next post ..

IP Calculator :

Class :A B C
Network IP :
Subnet Mask :loading...
Subnet ID :
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End :
Broadcast :
Hosts :loading...
Wildcard Mask :
Mask Bits :
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