Hi, I have a quiz on subnetting, CIDR & routing. I saw another member had the same test. Routing paths(hops) and subnetting with a source address and destination address. I'm confused on which subnett mask to use. I know CIDR does away with address classes and in the host octet the zeros are the part for the number of hosts. It's just not coming togther for me. I look at the pic that member sent and I'm confused. Any help would be most appreciated. Thank you