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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 466

A company needs to read multiple terabytes of data for an initial load as part of a Snowflake migration. The company can control the number and size of CSV extract files.
How does Snowflake recommend maximizing the load performance?

Correct Answer: C
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Question 467

Which function can be used to convert semi-structured data into rows and columns?

Correct Answer: B
To convert semi-structured data into rows and columns in Snowflake, theFLATTENfunction is utilized.
* FLATTEN Function: This function takes semi-structured data (e.g., JSON) and transforms it into a relational table format by breaking down nested structures into individual rows. This process is essential for querying and analyzing semi-structured data using standard SQL operations.
Example Usage:
SELECT
f.value:attribute1 AS attribute1,
f.value:attribute2 AS attribute2
FROM
my_table,
LATERAL FLATTEN(input => my_table.semi_structured_column) f;
References:
* Snowflake Documentation on FLATTEN
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Question 468

Which Snowflake tool is recommended for data batch processing?

Correct Answer: B
For data batch processing in Snowflake, the recommended tool is:
* B. SnowSQL: SnowSQL is the command-line client for Snowflake. It allows for executing SQL queries, scripts, and managing database objects. It's particularly suitable for batch processing tasks due to its ability to run SQL scripts that can execute multiple commands or queries in sequence, making it ideal for automated or scheduled tasks that require bulk data operations.
SnowSQL provides a flexible and powerful way to interact with Snowflake, supporting operations such as loading and unloading data, executing complex queries, and managing Snowflake objects from the command line or through scripts.
References:
* Snowflake Documentation: SnowSQL (CLI Client) at Snowflake Documentation
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Question 469

Which pages are included in the Activity area of Snowsight? (Select TWO).

Correct Answer: D,E
The Activity area of Snowsight includes the Query History page, which allows users to monitor and view details about queries executed in their account, including performance data1. It also includes the Automatic Clustering History, which provides insights into the automatic clustering operations performed on tables2.
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Question 470

True or False: A third-party tool that supports standard JDBC or ODBC but has no Snowflake-specific driver will be unable to connect to Snowflake.

Correct Answer: A
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