Q30 Container Registry Domain 1 · 20–25% of exam

A team needs to rebuild container images automatically whenever a public base image (e.g. node:20) is updated in Docker Hub. Which ACR Tasks trigger type handles this?

  1. A Scheduled trigger
  2. B Source code commit trigger
  3. C Base image update trigger (correct answer)
  4. D Webhook trigger

Shortcut: The base image update trigger in ACR Tasks monitors the base image in a registry and automatically queues a rebuild when it is updated.