Snowflake SnowPro Certification Practice Test

What file formats are supported by Snowflake for data loading?

1. JSON and HTML

2. CSV and TXT only

3. Text delimited and Avro

4. Excel and CSV

The correct answer is: Text delimited and Avro

Snowflake supports a variety of file formats for data loading, and one of these is Avro, which is a popular format for serializing data in big data processing. Avro is particularly well-suited for complex data structures and is often used in data lakes and for data interchange between systems. Additionally, text delimited formats, including CSV, are widely used for data loading because they are simple and easy to generate and parse. Snowflake can handle delimited text files of various types effectively. In contrast, some other options are not fully aligned with Snowflake's supported formats. HTML is not commonly used for data loading into Snowflake, as it's primarily a markup language for web content rather than a structured data format. Similarly, while Excel files might be used for initial data management and user-friendly data visualization, Snowflake does not natively support direct loading from Excel files. By recognizing the strengths of formats like Avro and the flexibility with text delimited files, it becomes clear why this choice aligns perfectly with Snowflake's capabilities for data ingestion.