The Google Analytics connector pulls data from Google Analytics API. The connector is highly configurable and can be used to pull data from Google Ads too (if Google Analytics account is liked to Google Ads). Full list of parameters can be found here

Google BigQuery is a fast, scalable, and easy-to-use data warehouse. Main advantages of Google BiqQuery are:

• Serverless architecture.
• Pay-as-you go

Jitsu can stream and batch data to Google BigQuery. Streaming will get data to BQ immediately, however Google charges for each streamed record, while batching is free. Streaming is the fastest way to get started, but batching will be cheaper for large volumes.