GCP Professional Data Engineer Practice Question

Workflows is a fully managed, serverless orchestration engine that lets you define a YAML- or JSON-based workflow calling Google Cloud services and any HTTP endpoint in a specific order. It supports loops, conditionals, and configurable retries, and you pay only for execution time, so there is no environment to run or patch. Cloud Composer is also fully managed, but it provisions a persistent Apache Airflow environment that incurs cost even when idle and requires version management, resulting in higher operational overhead than Workflows. Cloud Scheduler can only trigger single jobs on a schedule and cannot model multi-step workflows. Cloud Tasks provides task queues but lacks native branching logic and iteration across services.