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  1. Home
  2. Snowflake Certification
  3. COF-C03 Exam
  4. Snowflake.COF-C03.v2026-06-01.q489 Dumps
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Question 296

What is the purpose of a stream in Snowflake?

Correct Answer: C
The correct answer is C. To record changes made to table data and metadata, so that the changed data can be processed .
A Snowflake stream is a change tracking object. It records data manipulation language, or DML, changes made to a source table, including inserts, updates, and deletes. Streams are commonly used with tasks to build incremental data pipelines.
Why C is correct:
Streams allow users to identify what changed in a table since the stream was last consumed. This makes it possible to process only changed rows rather than reprocessing the entire table.
A stream exposes metadata columns such as:
METADATA$ACTION
METADATA$ISUPDATE
METADATA$ROW_ID
These metadata columns help identify the type of change and the affected row.
Why the other options are incorrect:
A). This describes real-time ingestion, which is closer to Snowpipe, connectors, or streaming ingestion rather than streams.
B). Snowflake streams are not media streaming services.
D). This describes a general streaming data processing system, but a Snowflake stream itself does not process data. It records changes so other SQL processes can consume them.
Official Snowflake documentation reference:
Snowflake documentation describes streams as objects that record DML changes made to tables, including metadata about each change, so the changes can be consumed in downstream processing.
Reference: Snowflake Documentation - Streams; Snowflake Documentation - Stream metadata columns; SnowPro Core Study Guide - SQL and Snowflake Objects.
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Question 297

Which command is used to unload data from a Snowflake table into a file in a stage?

Correct Answer: A
The COPY INTO command is used in Snowflake to unload data from a table into a file in a stage. This command allows for the export of data from Snowflake tables into flat files, which can then be used for further analysis, processing, or storage in external systems.
References:
Snowflake Documentation on Unloading Data
Snowflake SnowPro Core: Copy Into Command to Unload Rows to Files in Named Stage
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Question 298

How should the SPLIT_TO_TABLE( < string > , < delimiter > ) function be called?

Correct Answer: C
SPLIT_TO_TABLE() is a table function that splits a string into multiple rows based on a delimiter. To use it correctly in SQL, you must wrap it in a TABLE() clause.
Correct Syntax:
SELECT * FROM TABLE(SPLIT_TO_TABLE( ' a.b.c ' , ' . ' ));
Reference:
Snowflake Docs: SPLIT_TO_TABLE
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Question 299

Which function returns the URL of a stage using the stage name as the input?

Correct Answer: C
The function in Snowflake that returns the URL of a stage using the stage name as the input isC.
GET_PRESIGNED_URL. This function generates a pre-signed URL for a specific file in a stage, enabling secure, temporary access to that file without requiring Snowflake credentials. While the function is primarily used for accessing files in external stages, such as Amazon S3 buckets, it is instrumental in scenarios requiring direct, secure file access for a limited time.
It ' s important to note that as of my last update, Snowflake ' s documentation does not specifically list a function namedGET_PRESIGNED_URLfor directly obtaining a stage ' s URL by its name. The description aligns closely with functionality available in cloud storage services (e.g., AWS S3 ' s presigned URLs) which can be used in conjunction with Snowflake stages for secure, temporary access to files. For direct interaction with stages and their files, Snowflake offers various functions and commands, but the exact match for generating a presigned URL through a simple function call may vary or require leveraging external cloud services APIs in addition to Snowflake ' s capabilities.
References:
Snowflake Documentation and cloud services (AWS, Azure, GCP) documentation on presigned URLs and stage interactions.
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Question 300

Bulk data is loaded daily from an external storage location by using the following command:
COPY INTO source_table
FROM ' s3://source/data/files '
STORAGE_INTEGRATION = s3_source_int
FILE_FORMAT = (FORMAT_NAME = source_format)
PATTERN = ' sales.*[.]csv ' ;
How will the data be loaded?

Correct Answer: B
Snowflake maintains file-loading metadata for each target table. When COPY INTO runs, Snowflake checks information such as the file name, size, checksum, and previous load status. Files that match the PATTERN parameter but have already been successfully loaded into the table are normally skipped, while newly discovered matching files are processed. This behavior helps prevent accidental duplicate loading when the same external location is scanned repeatedly. The command does not truncate the target table, and PATTERN limits the files considered without overriding load-history checks.
Previously loaded files can be loaded again by setting the FORCE copy option to TRUE, but doing so can create duplicate rows. Therefore, under the default behavior shown in the question, only new matching files are loaded.
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