Snowflake COF-C02 Online Practice Questions and Exam Preparation

Snowflake COF-C02 Online Questions & Answers

• Question 471:

  Which function generates a Snowflake hosted file URL to a staged file using the stage name and relative file path as inputs?

  A. BUILD_STAGE_FILE_URL
  B. BUILD_SCOPED_FILE_URL
  C. GET_PRESIGNED_URL
  D. GET_STAGE_LOCATION
  A. BUILD_STAGE_FILE_URL

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  Explanation

• Question 472:

  Which of the following commands are valid options for the VALIDATION_MODE parameter within the Snowflake COPY_INTO command? (Choose two.)

  A. TRUE
  B. RETURN_ERROR_SUM
  C. RETURN_ALL_ERRORS
  D. RETURN__ROWS
  E. RETURN_FIRST__ERRORS
  C. RETURN_ALL_ERRORS
  D. RETURN__ROWS

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  Explanation

• Question 473:

  How can the outer array structure of a semi-structured file be removed?

  A. Use the parameter strip_outer_array = true in a COPY INTO command.
  B. Set the file format to eliminate any outer array structure before initiating the COPY INTO command.
  C. Filter the outer array structure using a PUT command with the include_outer_array = false parameter.
  D. Use the FLATTEN command with the outer_array = false parameter.
  A. Use the parameter strip_outer_array = true in a COPY INTO command.

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  Explanation

  In Snowflake, the parameter strip_outer_array = true can be set in the COPY INTO

  command to remove the outer array structure from a semi-structured file. This parameter is useful for JSON files or similar data formats where an array might wrap the data, allowing Snowflake to directly load the inner elements as table rows.

  Question 474:

  In a managed access schema, only the schema owner or a role with what privilege can help centralize privilege management?

  A. USAGE
  B. OPERATE
  C. MANAGE GRANTS
  D. IMPORTED PRIVILEGES

  C. MANAGE GRANTS

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  Explanation

  In a managed access schema, only the schema owner or a role with the MANAGE GRANTS privilege can centralize privilege management. This ensures controlled access to objects within the schema and enforces strict governance policies.

  References:

  Snowflake Documentation: Managed Access Schemas

  Granting Privileges in Managed Schemas

  Question 475:

  How does the PARTITION BY option affect an expression for a COPY INTO command?

  A. The unload operation partitions table rows into separate files unloaded to the specified table.
  B. The unload operation partitions table rows into separate files unloaded to the specified stage.
  C. A single file will be loaded with a user-defined partition key and the user can use this partition key for clustering.
  D. A single file will be loaded with a Snowflake-defined partition key and Snowflake will use this key for pruning.

  B. The unload operation partitions table rows into separate files unloaded to the specified stage.

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  Explanation

  https://docs.snowflake.com/en/user-guide/data-unload-overview

  Question 476:

  Which PUT command parameter is used to specify the number of threads to use for loading files?

  A. OVERWRITE
  B. PARALLEL
  C. AUTO_COMPRESS
  D. SOURCE_COMPRESSION

  B. PARALLEL

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  Explanation

  Question 477:

  A customer using SnowSQL / native connectors will be unable be unable to able to also use the Snowflake Web interface (UI) unless access to the UI is explicitly granted by supported.

  A. True
  B. False

  B. False

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  Explanation

  https://docs.snowflake.com/en/user-guide/connecting.html

  Question 478:

  What are characteristics of the ownership privilege when it is granted on a regular Snowflake schema? (Select TWO).

  A. It is automatically granted to the role that creates a database object within the schema.
  B. It allows a role to manage grants on the schema.
  C. It can be transferred from one role to another for a specific schema.
  D. It grants the ability to query data from the schema.
  E. It must be granted to a role in order to alter warehouse settings.

  A. It is automatically granted to the role that creates a database object within the schema.
  B. It allows a role to manage grants on the schema.

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  Explanation

  In Snowflake, the ownership privilege for a schema includes:

  Automatic granting to the creator's role: The role that creates a database object within the schema automatically receives ownership of that object. Ability to manage grants: Ownership enables the role to manage permissions and grants on

  the schema and its objects, allowing them to control access at the schema level.

  Ownership does not directly confer query privileges or the ability to alter warehouse settings, nor is it transferable without specific privilege management actions.

  Question 479:

  What is the FASTEST way to load specific staged files using the COPY INTO command?

  A. Use wildcard characters in the file path.
  B. Select files based on the path prefix of the stage.
  C. List file names using the FILES parameter.
  D. Use pattern matching using the PATTERN parameter.

  C. List file names using the FILES parameter.

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  Explanation

  Question 480:

  Which system_defined, read-only view display information on column lineage that specifies how data flows from source to target in a SQL write operation?

  A. ACCESS_HISTORY
  B. LOAD_HOSTORY
  C. QUERY_HISTORY
  D. COPY_HISTORY

  A. ACCESS_HISTORY

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  Explanation

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