Today I was applying for a job at a health care company. They are always a pain in the ass. They asked me to describe how I would design and implement subnetting, VLSM, and CIDR. Now I’m sure you are thinking the exact thing I was thinking, “What in the hell are you talking about”. Well I didn’t know how to deal with this so I just went on through the application and was just about to finish with out answering the question. I decided that I’d go back and see what I could do with that question. Well first thing I had to do was look up and find out what VLSM (Variable Length Subnet Masking) and CIDR (Classless Inter-Domain Routing) means. Ok, now I know what those acronyms mean but what are they. I spent the next thirty minutes to an hour reading about them. All of a sudden the light clicked on. I have not had “ANY” education in networking and have just learned it by necessity. It was at this moment that I figured out that I’d been using VLSM and CIDR for years and just didn’t know that was what it was called. Now that I knew, I knew what I was talking about, I spent almost an hour writing a two page response in great detail to their question. So I’ve sent off the application and am hoping for the best. Don’t you hate it when you know something that you don’t know you know….