COF-C02 Exam Dumps - SnowPro Core Certification Exam

Snowflake’s architecture is divided into three layers: database storage, query processing, and cloud services. The metadata, which includes information about the structure of the data, the SQL operations performed, and the service-level policies, is stored in the cloud services layer. This layer acts as the brain of the Snowflake environment, managing metadata, query optimization, and transaction coordination.

The Kafka connector stores formatted information in a single column of type VARIANT. This column type is used to store semi-structured data like JSON or Avro, which allows for flexibility in the data structure

 Snowflake’s hierarchical key model includes several levels of keys, where Account master keys and File keys are part of this hierarchy. Account master keys are used to encrypt all the data within an account, while File keys are used to encrypt individual files within the database2.

The Parquet file format is known for preserving the precision of floating-point numberswhen data is unloaded, preventing truncation of the values3.

To ensure a data consumer has access to the required objects, a data provider can enable the data sharing feature and validate that the consumer can access the views or tables shared with them. References: Based on general data sharing practices in cloud services as of 2021.

When unloading data to an external stage, the maximum file size supported is 5 GB. This limit ensures efficient data transfer and management within Snowflake’s architecture

Snowflake allows secure data sharing for specific database objects to ensure data is shared securely and efficiently. The primary objects that can be shared securely are tables and secure views.

Tables:Share actual data stored in tables.

Secure Views:Share derived data while protecting the underlying table structures and any sensitive information.

User-Defined Function (UDF) handlers must be written inline for Javascript and SQL. These languages allow the UDF logic to be included directly within the SQL statement that creates the UDF2.