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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 66

What should be used when creating a CSV file format where the columns are wrapped by single quotes or double quotes?

Correct Answer: C
When creating a CSV file format in Snowflake and the requirement is to wrap columns by single quotes or double quotes, the FIELD_OPTIONALLY_ENCLOSED_BY parameter should be used in the file format specification. This parameter allows you to define a character (either a single quote or a double quote) that can optionally enclose each field in the CSV file, providing flexibility in handling fields that contain special characters or delimiters as part of their data.
References:
* Snowflake Documentation: CSV File Format
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Question 67

Which of the following are benefits of micro-partitioning? (Select TWO)

Correct Answer: A,B
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Question 68

How do Snowflake data providers share data that resides in different databases?

Correct Answer: D
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Question 69

What happens to the underlying table data when a CLUSTER BY clause is added to a Snowflake table?

Correct Answer: D
When a CLUSTER BY clause is added to a Snowflake table, it specifies one or more columns to organize the data within the table's micro-partitions. This clustering aims to colocate data with similar values in the same or adjacent micro-partitions. By doing so, it enhances the efficiency of query pruning, where the Snowflake query optimizer can skip over irrelevant micro-partitions that do not contain the data relevant to the query, thereby improving performance.
References:
* Snowflake Documentation on Clustering Keys & Clustered Tables1.
* Community discussions on how source data's ordering affects a table with a cluster key
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Question 70

Based on Snowflake recommendations, when creating a hierarchy of custom roles, the top-most custom role should be assigned to which role?

Correct Answer: A
Based on Snowflake recommendations, when creating a hierarchy of custom roles, the top-most custom role should ideally be granted to the ACCOUNTADMIN role. This recommendation stems from the best practices for implementing a least privilege access control model, ensuring that only the necessary permissions are granted at each level of the role hierarchy. The ACCOUNTADMIN role has the highest level of privileges in Snowflake, including the ability to manage all aspects of the Snowflake account. By assigning the top-most custom role to ACCOUNTADMIN, you ensure that the administration of role hierarchies and the assignment of roles remain under the control of users with the highest level of oversight and responsibility within the Snowflake environment.
References:
* Snowflake Documentation on Access Control: Managing Access Control
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