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  1. Home
  2. Snowflake Certification
  3. COF-C02 Exam
  4. Snowflake.COF-C02.v2024-11-28.q521 Dumps
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Question 101

What is the MOST performant file format for loading data in Snowflake?

Correct Answer: B
Parquet is a columnar storage file format that is optimized for performance in Snowflake. It is designed to be efficient for both storage and query performance, particularly for complex queries on large datasets. Parquet files support efficient compression and encoding schemes, which can lead to significant savings in storage and speed in query processing, making it the most performant file format for loading data into Snowflake.
References:
* [COF-C02] SnowPro Core Certification Exam Study Guide
* Snowflake Documentation on Data Loading1
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Question 102

Which command is used to upload data files from a local directory or folder on a client machine to an internal stage, for a specified table?

Correct Answer: B
To upload data files from a local directory or folder on a client machine to an internal stage in Snowflake, the PUT command is used. The PUT command takes files from the local file system and uploads them to an internal Snowflake stage (or a specified stage) for the purpose of preparing the data to be loaded into Snowflake tables.
Syntax Example:
PUT file://<local_file_path> @<stage_name>;
This command is crucial for data ingestion workflows in Snowflake, especially when preparing to load data using the COPY INTO command.
Reference: Snowflake Documentation on Using the PUT Command:
https://docs.snowflake.com/en/sql-reference/sql/put.html
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Question 103

Regardless of which notation is used, what are considerations for writing the column name and element names when traversing semi-structured data?

Correct Answer: C
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Question 104

How long does Snowflake retain information in the ACCESS HISTORY view?

Correct Answer: B
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Question 105

In a Snowflake role hierarchy, what is the top-level role?

Correct Answer: C
In a Snowflake role hierarchy, the top-level role is ACCOUNTADMIN. This role has the highest level of privileges and is capable of performing all administrative functions within the Snowflake account
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