Certified Backstage Associate (CBA) Practise Exam

Who it is for

• Platform, DevOps, and SRE engineers preparing for the Linux Foundation Certified Backstage Associate (CBA).
• Practitioners who need practice with Backstage development workflow, infrastructure, the Software Catalog, and customization.

What this exam covers

• Backstage Development Workflow — 24%
• Backstage Infrastructure — 22%
• Backstage Catalog — 22%
• Customizing Backstage — 32%

What you will practice

• Run the local Backstage developer workflow: create an app, start the frontend and backend, and work with the documented project layout.
• Describe how Backstage is deployed and operated, including the Node.js backend, static frontend, databases, and search indexes.
• Model software in the Catalog with entity kinds, YAML descriptors, locations, and relations between components, APIs, and resources.
• Customize a portal with Software Templates, TechDocs, plugins, and theme or integration settings without treating a greenfield plugin as the only task.

About this practice exam

The Linux Foundation Certified Backstage Associate (CBA) exam tests foundational knowledge of Backstage as an open developer portal: the Software Catalog, TechDocs, Software Templates, and how platform teams run and customize an instance. This practice exam prepares you for Certified Backstage Associate (CBA) across Backstage Development Workflow, Backstage Infrastructure, Backstage Catalog, and Customizing Backstage.

The exam emphasizes creating and running a Backstage app, understanding backend and frontend infrastructure, registering and relating catalog entities, and customizing the portal with templates, documentation, and plugins. It does not primarily assess writing a production-grade custom plugin from scratch as a software-engineering exam, administering Kubernetes as a CKA-style exam, or general career coaching unrelated to the Backstage product.

The official Linux Foundation Certified Backstage Associate (CBA) exam is 60 questions in 90 minutes, with a passing score of 75%. This practice exam follows the four official CBA domains and their published weights.

The certification validates understanding of:

• Backstage Development Workflow: scaffolding an app, the documented repository layout, local development commands, and how frontend and backend packages work together.
• Backstage Infrastructure: deploying the backend service and static UI, required data stores, search, authentication integrations, and operational concerns at an associate level.
• Backstage Catalog: entity kinds (Component, API, Resource, System, Domain, User, Group), catalog-info YAML, locations, processors, and entity relations.
• Customizing Backstage: Software Templates (scaffolder), TechDocs, installing and configuring plugins, and basic theming or branding.