Which of these is a private Class B IP address?0.5 Marks172.15.56.23172.31.56.23192.168.56.23172.33.56.23

The private Class B IP address from the given options is 172.31.56.23.

Here's why:

IP addresses in the Class B range fall between 128.0.0.0 and 191.255.255.255. However, for private Class B IP addresses, the range is specifically from 172.16.0.0 to 172.31.255.255.

Looking at the options:

1. 172.15.56.23 - This falls outside the private Class B range as it's less than 172.16.0.0.
2. 172.31.56.23 - This is within the private Class B range.
3. 192.168.56.23 - This is a Class C private IP address, not Class B.
4. 172.33.56.23 - This falls outside the private Class B range as it's more than 172.31.255.255.

So, the correct answer is 172.31.56.23.