1. The Incident Context For 11 consecutive months, our primary production Auto Scaling Group (ASG) serving API traffic never scaled down below 40 EC2 instances (c6i.2xlarge) during off-peak...
### What Changed AWS has updated cross-zone data transfer pricing for Network Load Balancers (NLB). Previously, enabling cross-zone load balancing incurred standard inter-AZ transfer charges ($0.01/G...
We kept getting feedback that our first DOP-C02 set read like it was written for the Associate exam. It was. We scrapped it and rewrote all 50 questions around actual operational failure modes. When...
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