**Show HN: CertArena – Free AI certification simulator (zero deps, native Node 24)**

> Practice AI interview scenarios and certification questions for AWS, Azure, Google Cloud, Claude, and Databricks. Free explanations, audio, and saved progress. AIF-C01 Foundational AWS Certified AI Practitioner Practice AI fundamentals, Amazon Bedrock, responsible AI, and security decisions on AWS. Official Spec 90m · 65Q · 700 pass score CertArena Bank 26 scenarios · Kokoro audio Practice now → Timed exam Study guid...

**来源信息**
- **来源**：Hacker News：AI 热帖
- **分类**：ai-products
- **发布时间**：2026-09-11 12:20（北京时间）
- **原文**：[打开原文](https://aicertarena.com/)