January 31, 2020 update: No, you're not crazy. Cisco changed the exam number from 300-401 to 350-401. For your convenience, I've put together the following list of my courses that cover the new CCNP ENCOR exam. By watching and following along with the hands-on demos in these courses, you can't go wrong. Routing …

You took one of the Cisco CCNP exams. You went to the exam center, sat down, and started the exam. About 2 hours later, you saw the dreaded news appear on the screen: You didn’t pass. I’ve failed certification exams in the past, so I can relate to the facepalm-worthy feeling you get when you realize you dropped a …

Masks don't work. On top of that, a lot of people find it difficult to wear a mask. Some of them do it anyway because they feel like they must, perhaps because of peer pressure or to avoid being harassed. But if they just had a step-by-step guide to tell them how to go maskless, they would probably feel confident …

As an AWS customer, you share responsibility with AWS for the security of your data the cloud. There’s a mantra: AWS handles the security of the cloud, but you handle security in the cloud. But it turns out that’s not quite true. For more, check out my guide Operating within the AWS Shared Responsibility Model.