A large international company with many operating regions requires data to be shared bi-directionally among all offices (head office to regional offices and regional offices among themselves). This company is a Snowflake account holder with European operations deployed in Microsoft Azure (single region) while North American regional offices are using AWS (single region) as their deployment cloud. This setup is required to comply with Personal Identifiable Information (PII) regulations in some of the European countries. The corporate head office is in Europe.
How can this data be shared bi-directionally, while MINIMIZING costs?

What access control policy will be put into place when future grants are assigned to both database and schema objects?

What roles or security privileges will allow a consumer account to request and get data from the Data Exchange? (Choose two.)

What is the default data retention period for transient databases, schemas, and tables for Snowflake Enterprise edition and higher?

In which scenario will use of an external table simplify a data pipeline?