that gives you 16 subnets with 14 usable IPs for hosts that is because one is for subnet and one for broadcas in that subnet
for example: 192.168.1.0/28 - subnet number
192.168.1.15 -broadcast number
usable IPs for hosts - IPs between them that is 14
Looking at the default subnet mask for a class C network, you would receive:
255.255.255.0 with no subnets and a maximum number of clients of 254.
If you borrow 4 bits, that can give you 14 subnets, each of which has a maximum number of hosts (clients) of 14 per subnet. This is based on the rule of 2n - 2 for classical subnetting.
For a 0th subnet you would not need to subtract the 2.
5 bits are necessary to create up to 30 subnets.
When you borrow bits for a subnet you are intruding into the client portion of an IP address. As a result, you will lose clients in your network because the "borrowed" portion becomes the extended network prefix. This allows you to separate your bigger network into smaller, logical networks (subnets). The number of bits borrowed will indicate the total number of smaller subnets that you can support in your network. In each case, regardless of class of address, borrowing 4 bits gives a total of 14 subnets (in the classical sense) and 16 subnets (in Cisco).
3
3
Default Gateways
192 is equal to 2 bits borrowed 2^2 = 4 the number of subnets and host are 64 because 2 bits borrowed from the 8 bits of a class C network is 6, therfore 2^6 = 64.
At least one.
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.
autosummarization
network class network address number of subnets required number of host per subnet
If you are getting this IP from your ISP you must ask them. It most likely is 255.255.255.248 This IP seems to be a Default Gateway, your address would be 74.176.12.142 with the above mentioned subnet mask. Now if this is for your homewaork or exam, then this answer is not correct and you should have paid attention in class to Subnets.
Yes - this is a broadcast address for all subnets in the 11.0.0.0 network.