Snowflake COF-C02 Online Practice Questions and Exam Preparation

Snowflake COF-C02 Online Questions & Answers

• Question 701:

  What will prevent unauthorized access to a Snowflake account from an unknown source?

  A. Network policy
  B. End-to-end encryption
  C. Multi-Factor Authentication (MFA)
  D. Role-Based Access Control (RBAC)
  A. Network policy

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  Explanation

• Question 702:

  Which Snowsight feature can be used to perform data manipulations and transformations using a programming language?

  A. SnowSQL
  B. Dashboards
  C. Python worksheets
  D. Provider Studio
  C. Python worksheets

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  Explanation

• Question 703:

  What is the MINIMUM Snowflake edition that offers data protection for extremely sensitive data, such as Protected Health Information (PHI)?

  A. Standard
  B. Enterprise
  C. Business Critical
  D. Virtual Private Snowflake (VPS)
  C. Business Critical

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  Explanation

• Question 704:

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

  A. ACCOUNTADMIN
  B. SECURITYADMIN
  C. SYSADMIN
  D. USERADMIN
  C. SYSADMIN

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  Explanation

  https://community.snowflake.com/s/article/Quickly-Visualize-Snowflake-s-Roles-Grants-and-Privileges

• Question 705:

  While using the COPY INTO

  command, how can a JSON NULL value be converted to a SQL NULL value using the LEAST amount of operational overhead?
  A. Use the STRIP_NULL_VALUE function.
  B. Cast the VARIANT NULL value as a string.
  C. Use the OBJECT_CONSTRUCT_KEEP_NULL function.
  D. Use a custom procedure to perform the conversion.
  A. Use the STRIP_NULL_VALUE function.

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  Explanation

  Question 706:

  The ORDERS table contains 12,000 rows.

  Which query will return 10 rows that are randomly sampled from the table every time the query is run?

  A. select * from ORDERS fetch 10;
  B. select * from ORDERS limit 10;
  C. select * from ORDERS sample (10);
  D. select * from ORDERS tablesample (10 rows);

  C. select * from ORDERS sample (10);

  ---

  Explanation

  Question 707:

  Some queries can be answered through the metadata cache and do not require an active Virtual Warehouse.

  A. True
  B. False

  A. True

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  Explanation

  Some aggregate queries are answered thru micro partitions metadata only not requiring any VW spin ups.

  Question 708:

  When unloading data, which combination of parameters should be used to differentiate between empty strings and NULL values? (Choose two.)

  A. ESCAPE_UNENCLOSED_FIELD
  B. REPLACE_INVALID_CHARACTERS
  C. FIELD_OPTIONALLY_ENCLOSED_BY
  D. EMPTY_FIELD_AS_NULL
  E. SKIP_BLANK_LINES

  C. FIELD_OPTIONALLY_ENCLOSED_BY
  D. EMPTY_FIELD_AS_NULL

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  Explanation

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

  Question 709:

  What target locations can be used when unloading data using the COPY INTO command? (Select TWO)

  A. A Snowflake schema
  B. A Snowflake stage
  C. A local file system
  D. A Snowflake stream
  E. Cloud storage in Google (GCP), AWS, or Microsoft Azure

  B. A Snowflake stage
  E. Cloud storage in Google (GCP), AWS, or Microsoft Azure

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  Explanation

  The COPY INTO command is used to unload data from Snowflake tables to external locations , typically cloud storage or a Snowflake stage. Supported destinations include:

  External stages: e.g., S3, Azure Blob Storage, Google Cloud Storage

  Internal named stages: Snowflake-managed storage

  Local file systems are not supported as unload targets.

  Snowflake Docs: COPY INTO (unloading) "You can unload data to: Internal Named Stages and External Stages (S3, Azure, GCS)"

  Question 710:

  What Snowflake objects or services can be used to automatically load data from files as soon as. They are available in an external staged (Select TWO).

  A. Stream
  B. Snowpipe
  C. Task
  D. Directory table
  E. User-Defined Function (UDF)

  B. Snowpipe
  C. Task

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  Explanation

  Snowflake provides mechanisms to automatically load data from files in external stages (like Amazon S3 or Azure Blob Storage).

  The correct methods include:

  Example:

  CREATE PIPE my_pipe

  AUTO_INGEST = TRUE

  AS COPY INTO my_table FROM @my_stage FILE_FORMAT = (TYPE = 'CSV'); uk.co.certification.simulator.questionpool.PList@403350ae Example:

  CREATE TASK my_task

  SCHEDULE = '5 MINUTE'

  AS

  CALL load_data_procedure();

  Why Other Options Are Incorrect:

  A. Stream: Streams track changes in a table for change data capture (CDC) but do not directly load data from files.

  D. Directory table: Snowflake does not have a "directory table" object for managing external file ingestion.

  E. User-Defined Function (UDF): UDFs are used for custom logic within SQL queries, not for data loading.

  References:

  Snowpipe Overview

  Tasks Overview
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