172.16.1.14 255.255.255.240
IP address and Subnet Mask... :D
The subnet mask for the IP address 10.0.0.138 typically depends on the network configuration. In a default Class A configuration, the subnet mask would be 255.0.0.0, which corresponds to a /8 prefix. However, the actual subnet mask can vary based on specific network needs and can be configured to something like 255.255.255.0 (a /24 prefix) or others depending on how the network is structured.
The network address of an IPv4 address of 192.168.7.5 with a subnet mask of 255.255.255.0 would be 192.168.7.0. Remember that the subnet mask determines the network portion of the IP Address.
The subnet depends on the IP addresses of the computers you are trying to connect. In most instances, a subnet of 255.255.255.0 is sufficient enough to get the job done. Subnets only really need to be configured if you are trying to connect multiple network IP distribtuions.
If a mainframe is using TCP/IP as its protocol it is configured the same way any other system using TCP/IP would be configured: an IP address, subnet mask, and default gateway address.
When you set up a sub network you decide upon the subnet mask and this determines the network address (all zeros in the subnet portion of the address) and the broadcast address (all ones in the subnet portion of the address). When you assign the host addresses in your subnet, then you use the addresses between the network address and the broadcast address.
To determine the network or subnet address of an IP address
Since you haven't given a starting network address or subnet mask, impossible to say.
Depends on how you subnet it.
To create a subnet ID, you start with the network's base IP address and subnet mask. The subnet mask determines how many bits are allocated for the network and how many for the hosts. By applying the subnet mask to the base IP address, you can identify the subnet ID, which represents the network portion of the address. For example, if your base IP is 192.168.1.0 with a subnet mask of 255.255.255.0, the subnet ID is 192.168.1.0.
This is a network address
The subnet mask on host C is improperly configured.