Configure Backstage CBA Practice Questions (Page 4)

Questions 16–20

1. 16application · easy

   A team uses app-config.yaml for common settings and app-config.production.yaml for production overrides. In the base file, they set 'backend.database.connection.host: localhost'. In the production overlay, they set 'backend.database.connection.host: db.example.com'. What will the effective host be in production?

   • Adb.example.com
   • BA concatenated value: 'localhostdb.example.com'.
   • CAn error because the same key is defined in both files.
   • Dlocalhost
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2. 17application · medium

   A team is configuring authentication for Backstage. They want to enable GitHub authentication for the frontend and also configure the backend to accept the same GitHub provider for API calls. Which configuration block is required?

   • Aauth: providers: github: development: clientId: ... clientSecret: ...
   • Bintegrations: github: - host: github.com token: ...
   • Cbackend: auth: github: clientId: ... clientSecret: ...
   • Dfrontend: auth: github: clientId: ... clientSecret: ...
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4. 18application · medium

   A Backstage instance uses a PostgreSQL database for the backend. The team wants the database connection string to be different in development and production, and the production password must not be in the repository. Which configuration approach is correct?

   • AStore the connection string in the backend's environment and reference it via a custom plugin.
   • BUse a single connection string in app-config.yaml that works for both environments by using a database proxy.
   • CPut the production connection string in app-config.yaml and the development string in app-config.local.yaml.
   • DUse a base app-config.yaml with a placeholder connection string, and override it in app-config.production.yaml using ${POSTGRES_PASSWORD} for the password.
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5. 19foundation · easy

   Which command is used to validate the Backstage configuration against the expected schema?

   • Abackstage-cli config:test
   • Bbackstage-cli config:lint
   • Cbackstage-cli config:check
   • Dbackstage-cli config:validate
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6. 20application · easy

   A Backstage instance is configured with the following files loaded in order: app-config.yaml, app-config.production.yaml. The base file sets 'app.title: My Company'. The production overlay sets 'app.title: My Company Prod'. What will the effective value of 'app.title' be?

   • AAn error because the same key is defined in both files.
   • BMy Company Prod
   • CMy Company
   • DA concatenated value: 'My Company My Company Prod'.
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