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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 176

The Information Schema and Account Usage Share provide storage information for which of the following objects? (Choose three.)

Correct Answer: B,C,D
The Information Schema and Account Usage Share in Snowflake provide metadata and historical usage data for various objects within a Snowflake account. Specifically, they offer storage information for Tables, Databases, and Internal Stages. These schemas contain views and table functions that allow users to query object metadata and usage metrics, such as the amount of data stored and historical activity.
Tables: The storage information includes data on the daily average amount of data in database tables.
Databases: For databases, the storage usage is calculated based on all the data contained within the database, including tables and stages.
Internal Stages: Internal stages are locations within Snowflake for temporarily storing data, and their storage usage is also tracked.
References: The information is verified according to the SnowPro Core Certification Study Guide and Snowflake documentation
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Question 177

What is the MOST performant file format for loading data in Snowflake?

Correct Answer: B
Parquet is a columnar storage file format that is optimized for performance in Snowflake. It is designed to be efficient for both storage and query performance, particularly for complex queries onlarge datasets. Parquet files support efficient compression and encoding schemes, which can lead to significant savings in storage and speed in query processing, making it the most performant file format for loading data into Snowflake.
References:
[ COF-C03 ] SnowPro Core Certification Exam Study Guide
Snowflake Documentation on Data Loading1
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Question 178

A user needs to load Snowflake files from a stage that contains data from the past 5 years while using the least amount of operational overhead. The file names follow a specific format, such as files ending in _01.gz.
Which command should be used to load the data from 2024?

Correct Answer: B
The correct answer is B. Use the COPY INTO command using the PATTERN parameter to define the needed files .
The PATTERN parameter in the COPY INTO < table > command allows Snowflake to load only files whose names match a specified regular expression. This is useful when a stage contains many files and the required files can be identified by a naming pattern, such as year or suffix.
Why B is correct:
The user needs to load a subset of staged files from a 5-year collection and wants the least operational overhead. Using PATTERN avoids manually listing files, removing files, or downloading and restaging data.
Example concept:
COPY INTO target_table
FROM @my_stage
PATTERN = ' .*2024.*_01[.]gz ' ;
Why the other options are incorrect:
A). Individually loading files creates more manual work and higher operational overhead.
C). Removing unwanted files is risky and unnecessary. It also changes the staged file set.
D). Downloading files with GET, creating a new stage, and reloading files adds unnecessary operational complexity.
Official Snowflake documentation reference:
Snowflake documentation explains that the PATTERN option in COPY INTO < table > specifies a regular expression pattern used to match staged file names for loading.
Reference: Snowflake Documentation - COPY INTO < table > ; Snowflake Documentation - PATTERN copy option; SnowPro Core Study Guide - Data Loading and Unloading.
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Question 179

Which activities are managed by Slowflake's Cloud Services layer? (Select TWO).

Correct Answer: A,E
Snowflake's Cloud Services layer is responsible for managing various aspects of the platform that are not directly related to computing or storage. Specifically, it handles authorisation, ensuring that users have appropriate access rights to perform actions or access data. Additionally, it takes care of query parsing and optimization, interpreting SQL queries and optimizing their execution plans for better performance. This layer abstracts much of the platform's complexity, allowing users to focus on their data and queries without managing the underlying infrastructure.References: Snowflake Architecture Documentation
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Question 180

While unloading data into a stage, how can the user ensure that the output will be a single file?

Correct Answer: B
To ensure that the output will be a single file when unloading data into a stage, you should use the COPY option SINGLE=TRUE. This option specifies that the result of the COPY INTO command should be written to a single file, rather than multiple files.
Snowflake Documentation: COPY INTO < location >
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