What is aws-dco-interview-prep?

This repository is a study guide for people preparing to interview for the AWS Data Center Technician role, sometimes called DCO L3. It is written entirely from publicly available knowledge and community experience, and the README is explicit that it does not contain any confidential Amazon information or real interview questions under NDA. It is meant purely as an educational study aid. The guide explains that the interview evaluation is mostly behavioral, covering things like leadership principles and how well a candidate communicates past experiences using the STAR method, meaning Situation, Task, Action, and Result. A smaller part of the interview covers technical knowledge, including server hardware, networking basics, fiber optics, and structured troubleshooting under pressure. The material is organized into several linked documents: one on leadership principles and the STAR storytelling framework, one with example behavioral story templates mapped to those principles, a technical cheat sheet covering things like the OSI networking model, RAID storage setups, and common Linux commands, a set of troubleshooting flowcharts for scenarios like a server that will not power on or a dropped network link, a glossary of data center hardware and networking terms, and a checklist for the day of the interview itself. The guide also lays out a six step formula for answering technical troubleshooting questions out loud during an interview, covering things like confirming the scope of a problem, following safety procedures, checking physical connections first, and testing one variable at a time before documenting the fix. Contributions are welcome through pull requests, and the repository is released under the MIT license.