Answer: Database replication

The correct answer is C (Database replication) because Snowflake applies egress charges when data is transferred out of Snowflake's infrastructure to external locations, which occurs during database replication across different regions or cloud platforms. According to Snowflake documentation and the community discussion with high upvotes (9 and 6 upvotes), data transfers within the same region are free, but egress fees apply for cross-region or cross-cloud transfers. Option A (Data sharing within a specific region) is incorrect because secure data sharing uses Snowflake's services layer without actual data transfer, so no egress charges apply. Option B (Query result retrieval) is incorrect as query results typically don't incur egress charges unless explicitly exported. Option D (Loading data into Snowflake) is incorrect because data ingress (loading into Snowflake) is generally free.

Author: LeetQuiz Editorial Team