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c
what is the subnet mask for this hst IP prefix format ? Host IP Address: 183.91.104.16
220.220.220.0 is an invalid subnet mask.
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Without a subnet mask a client is not able to participate on a network because the network software is unable to determine the network addresses.
5
It does not require a subnet mask.
If this is a default subnet mask, then it would be a class C subnet mask. If you are subnetting a network and this is not the default subnet mask, then it could be either a class A or class B.
To determine the network or subnet address of an IP address
binary ANDing
binary ANDing
The default subnet mask has a standard size. The custom subnet mask allows you to make subnets that are smaller or larger than the default.
you can't. There's no way to know from an IP address wha the subnet mask is. However, there are some likely guesses. Since 195.0.8.0 ends with a zero, the subnet is probably a 24-bit mask: 255.255.255.0 But it doesnt have to be. The network administrator knows for sure. fm