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| Section | Objectives |
|---|---|
| Data Transformation and Processing | - SQL operations in Snowflake - Streams and tasks for data pipelines |
| Snowflake Architecture and Platform Concepts | - Storage and data organization - Snowflake architecture fundamentals - Virtual warehouses and compute model |
| Security and Access Control | - Authentication and user management - Role-based access control (RBAC) |
| Data Loading and Unloading | - External and internal stages - Bulk data loading using stages and COPY INTO |
| Data Sharing and Protection | - Data replication and failover concepts - Secure data sharing |
| Performance and Optimization | - Warehouse sizing and scaling - Query optimization basics |
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質問 # 470
The Snowflake VARIANT data type imposes a 16 MB size limit on what?
正解：B
質問 # 471
A user needs to set up a virtual warehouse for the organization's BI team. The team has around 14 users running similar queries at the same time, and queries often get queued. Which virtual warehouse configuration should be assigned to the team to improve performance and concurrency?
正解：B
解説：
Queued queries from many concurrent BI users indicate a concurrency issue. A multi-cluster warehouse improves concurrency by adding clusters as query demand increases. Increasing warehouse size helps individual query speed, but adding clusters is better for concurrent query queuing.
Reference: Snowflake Documentation - Multi-cluster warehouses; Warehouse load and concurrency.
質問 # 472
Users who do not have a Snowflake account need access to a staged file. Which command will generate a URL that will provide access to those users?
正解：D
解説：
The correct answer is B. GET_PRESIGNED_URL(@ < stage_name > , ' < relative_file_path > ' , [ < expiration_time > ]); .
A pre-signed URL provides temporary access to a staged file. This is useful when users or applications outside Snowflake need access to a file for a limited period of time.
Why B is correct:
GET_PRESIGNED_URL generates a pre-signed URL for a staged file. The URL can be used to access the file without the user needing a Snowflake account, as long as the URL has not expired.
Example:
SELECT GET_PRESIGNED_URL(@my_stage, ' folder/file.csv ' , 3600);
This generates a URL that is valid for a limited time, such as 3600 seconds.
Why the other options are incorrect:
A). BUILD_STAGE_FILE_URL creates a Snowflake file URL, but it does not provide the same temporary external access behavior as a pre-signed URL.
C). GET_RELATIVE_PATH returns the relative path of a staged file, not an access URL.
D). BUILD_SCOPED_FILE_URL creates a scoped URL that is useful within Snowflake-controlled contexts, but for users without Snowflake accounts who need direct temporary access, GET_PRESIGNED_URL is the best answer.
Official Snowflake documentation reference:
Snowflake documentation describes GET_PRESIGNED_URL as a function that returns a pre-signed URL for a staged file, with an optional expiration time.
Reference: Snowflake Documentation - GET_PRESIGNED_URL; Snowflake Documentation - File functions; SnowPro Core Study Guide - Data Loading and Unloading.
質問 # 473
Who can access the data published in a Data Exchange?
正解：D
解説：
Snowflake's Data Exchange allows data providers to publish data that is accessible only to users they explicitly invite. This mechanism ensures that only approved users or Snowflake accounts have access, adding a layer of security and control. Invited users can query the shared data directly within their Snowflake account without requiring data copies, reducing redundancy and enhancing data accessibility within controlled boundaries. This selective sharing feature is part of Snowflake's secure data-sharing capabilities.
質問 # 474
What is the MINIMUM Snowflake edition that users storing protected information in Snowflake should use for regulatory compliance?
正解：C
質問 # 475
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