I was at church on Sunday and the video projection wasn’t working. After a few minutes of watching everyone struggle, I volunteered to take a look, and working together, we were able to get the video working again using a simple, repeatable methodology: Using the OSI model to troubleshoot video.
I’m going to share that methodology now.
I saw this phrase in a job description last week: Troubleshooting at all layers of the OSI model. That sounds a bit intimidating, right?
Maybe at first. But let’s not overcomplicate it. Once you get past the terminology, it’s a logical way to locate and fix problems. Chances are you already do most of this whether you realize it or not. I was already troubleshooting at at least four of the seven layers when I was working as a part-time desktop support technician in college in 1995.
As my crazy week wound down, I had a number of visitors, including someone who’s been on the fence about taking the CISSP. She wanted some advice. The (ISC)² Code of Ethics says to give generously of such things when asked, so we talked for about 30 minutes. Read more
The CISSP is a 250-question, multiple-choice test. You have six hours to complete it. It’s not like any college final I ever took, though cramming all of finals week into a six-hour session is almost a fair comparison. If you’re wondering how to pass CISSP, I can’t guarantee my method, but I’m glad to share what worked for me.
Five and a half hours ago, I turned in my test and departed the CISSP test site. It took me four hours to answer the nastiest 250 test questions I’ve ever seen in my life.
I felt better about it than the other guys milling around the lobby, but….