You have large unstructured files in various formats and need them accessible to a Dataflow ETL job. Where should you put the data?

Cloud Storage is the ideal solution for storing large, unstructured files that need to be accessible to a Dataflow ETL job. It's a highly scalable and durable object storage service, perfectly suited for various file formats. Dataflow can directly read data from Cloud Storage buckets, making it a seamless integration for ETL pipelines. The gsutil command-line tool is the standard and efficient way to upload files to Cloud Storage. BigQuery is a data warehouse for structured data, not suitable for storing raw, unstructured files. Cloud SQL is a relational database for structured data, and Cloud Spanner is a globally distributed relational database; neither is designed for storing arbitrary unstructured files for direct consumption by Dataflow in this manner.