CompTIA Server+ SK0-005 Practice Question

With a /20 prefix the third-octet block size is 16, so the subnet that starts at 10.35.96.0 ends at 10.35.111.255. The first usable address is therefore 10.35.96.1 and the last usable address is 10.35.111.254. Assigning 10.35.111.254/20 to the server and 10.35.96.1 as its gateway meets both requirements. A configuration that uses 10.35.96.254 still falls within the subnet but is not from the highest usable range. A configuration that uses 10.35.112.254 is outside the subnet altogether, and a configuration that sets the gateway to 10.35.111.254 reverses the required address roles.