Final answer:
Yes, the prefix 192.168.129.0/23 can be split into two equal subnets by changing the subnet mask to /24, creating two subnets, each with 254 usable IP addresses.
Step-by-step explanation:
The prefix 192.168.129.0/23 can indeed be split into two parts of equal size. This is possible because the prefix /23 indicates a subnet mask of 255.255.254.0, which allows for 510 usable host IP addresses (512 addresses minus 2 for the network and broadcast addresses). To split this into two subnets of equal size, you would increase the subnet mask by one more bit, resulting in two /24 networks: 192.168.129.0/24 and 192.168.130.0/24. Each of these subnets would then have 254 usable host IP addresses (256 minus 2 for the network and broadcast addresses).
Yes, the prefix 192.168.129.0/23 can be split into two parts of equal size. The subnet mask 255.255.254.0 indicates that the network portion consists of 23 bits and the host portion consists of 9 bits. This means that we have 2^9 minus 2 = 510 available host addresses per subnet. Since the prefix has a /23 subnet mask, it originally had a total of 2^23 minus 2 = 8388606 host addresses. Dividing this total by 2 gives us 4194303, which is the number of host addresses available in each of the two equal-sized subnets.