Answer: Economy, Standard

The question asks for the two valid Snowflake Virtual Warehouse scaling policies. According to Snowflake documentation and the community discussion consensus (with 100% agreement on BD), the valid scaling policies are Economy and Standard. The Economy policy prioritizes cost efficiency by delaying cluster provisioning and terminating clusters after 5-6 minutes of inactivity, while the Standard policy prioritizes performance by immediately adding clusters when queries are queued and terminating clusters after 2-3 minutes of inactivity. Options A (Custom) and C (Optimized) are not valid Snowflake scaling policies, as confirmed by the community discussion and official documentation references.

Author: LeetQuiz Editorial Team