Question Detail Default network mask for CLASS A is 255.0.0.0255.255.0.0255.255.255.0255.255.255.255 Answer: Option A Similar Questions : 1. Default network mask for CLASS C is 255.0.0.0255.255.0.0255.255.255.0255.255.255.255 Answer: Option C 2. What is the subnetwork number of a host with an IP address of 172.16.66.0/21 172.16.64.0172.16.48.0172.16.36.0172.16.0.0 Answer: Option A 3. Default network mask for CLASS B is 255.0.0.0255.255.0.0255.255.255.0255.255.255.255 Answer: Option B 4. Default network mask for CLASS A is 255.0.0.0255.255.0.0255.255.255.0255.255.255.255 Answer: Option A 5. What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask 14153062 Answer: Option C Read more from - Subnetting Questions Answers