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  1. Home
  2. Snowflake Certification
  3. COF-C02 Exam
  4. Snowflake.COF-C02.v2026-01-13.q618 Dumps
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Question 51

Which clients does Snowflake support Multi-Factor Authentication (MFA) token caching for? (Select TWO).

Correct Answer: C,D
Multi-Factor Authentication (MFA) token caching is typically supported for clients that maintain a persistent connection or session with Snowflake, such as the ODBC driver and Python connector, to reduce the need for repeated MFA challenges. Reference: Based on general security practices in cloud services as of 2021.
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Question 52

When loading data into Snowflake via Snowpipe what is the compressed file size recommendation?

Correct Answer: D
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Question 53

Which URL provides access to files in Snowflake without authorization?

Correct Answer: C
A Pre-signed URL provides access to files stored in Snowflake without requiring authorization at the time of access. This feature allows users to generate a URL with a limited validity period that grants temporary access to a file in a secure manner. It's particularly useful for sharing data with external parties or applications without the need for them to authenticate directly with Snowflake.
Reference:
Snowflake Documentation: Using Pre-signed URLs
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Question 54

Who can grant object privileges in a regular schema?

Correct Answer: D
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Question 55

What is the MINIMUM size of a table for which Snowflake recommends considering adding a clustering key?

Correct Answer: D
Snowflake recommends considering adding a clustering key to a table when its size reaches 1 Terabyte (TB) or larger. Clustering keys help optimize the storage and query performance by organizing the data in a table based on the specified columns. This is particularly beneficial for large tables where data retrieval can become inefficient without proper clustering.
Why Clustering Keys Are Important: Clustering keys ensure that data stored in Snowflake is physically ordered in a way that aligns with the most frequent access patterns, thereby reducing the amount of scanned data during queries and improving performance.
Recommendation Basis: The recommendation for tables of size 1 TB or larger is based on the observation that smaller tables generally do not benefit as much from clustering, given Snowflake's architecture. However, as tables grow in size, the benefits of clustering become more pronounced.
Implementing Clustering Keys:
To set a clustering key for a table, you can use the CLUSTER BY clause during table creation or alter an existing table to add it:
CREATE TABLE my_table (... ) CLUSTER BY (column1, column2);
Or for an existing table:
ALTER TABLE my_table CLUSTER BY (column1, column2);
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