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Snowflake NAS-C01 Exam Syllabus Topics:

Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. A Snowflake Native App provider is working on the consumer-side testing of their application. They need to verify that specific events are being recorded correctly in the Event Table within the consumer's account. They are using the Snowflake Native Apps framework's testing capabilities. Which of the following approaches would be MOST reliable for validating the contents of the Event Table during automated testing?

A) Implement a stored procedure within the Native App that queries the Event Table and returns the results to the provider through a secure output parameter.
B) Use the 'SHOW EXTERNAL TABLES command within the consumer account to inspect the Event Table's structure and contents.
C) Grant SELECT privileges on the Event Table to a role in the consumer account that is accessible by the provider's testing framework.
D) Directly query the Event Table from the provider's account using a cross-account secure data share.
E) Utilize the testing framework's built-in assertion capabilities to verify that specific events are present in the Event Table based on expected values.

2. A Native Application package contains a secure view that exposes customer dat a. The application provider wants to ensure that only the application itself, and not the consumer's roles, can access the underlying table. They have granted OWNERSHIP on the table to the application. Which of the following SQL statements would be MOST effective in managing privileges so that the application package can securely access customer data and consumers cannot directly access it via their own roles?

A) GRANT SELECT ON TABLE .. TO APPLICATION PACKAGE; REVOKE SELECT ON TABLE FROM ROLE PUBLIC;
B) No additional privileges are needed as the application package has ownership of the object.
C) GRANT SELECT ON TABLE .. TO APPLICATION PACKAGE;
D) REVOKE ALL PRIVILEGES ON TABLE .. FROM ROLE PUBLIC; GRANT SELECT ON TABLE .. TO APPLICATION PACKAGE;
E) GRANT SELECT ON TABLE .. TO APPLICATION ROLE ;

3. You are developing a Snowflake Native Application that allows customers to enrich their dat a. The application involves executing Javascript UDFs. Which of the following practices are considered unacceptable regarding code practices within the UDFs to ensure the Native App complies with Snowflake's requirements and security best practices?

A) Using JavaScript's eval() function to dynamically execute code based on user input or data retrieved from external sources.
B) Relying solely on the consumer's network policy to manage external network access from the UDFs.
C) Using Javascript UDFs to access data not needed by the application to save on querying costs.
D) Using the SYSTEM$ALLOWLIST function to restrict external network access from the Javascript UDFs to a specific set of approved domains. Using Snowflake's network rules is also acceptable for newer accounts.
E) Directly embedding secrets (e.g., API keys, passwords) within the Javascript UDF code itself, even if obfuscated.

4. You are developing a Snowflake Native Application that needs to be deployed across multiple Snowflake accounts. The application includes a setup script that creates several tables and stored procedures. However, some consumers might have naming conflicts with the objects created by your setup script. Which of the following strategies can you use to minimize naming conflicts and ensure smooth application deployment? (Select all that apply)

A) Prefix all objects created by the setup script with a unique, application-specific identifier.
B) Dynamically generate object names within the setup script using the application's name and a random suffix.
C) Utilize the 'CREATE OR REPLACE syntax for all objects in the setup script to overwrite any existing objects.
D) Instruct consumers to drop any conflicting objects before installing the application.
E) Package all application objects into a dedicated schema within the consumer's database.

5. You are developing a Snowflake Native Application that provides data enrichment services. A consumer reports that a specific query against a view, 'ENRICHED DATA, occasionally returns incorrect results. You suspect a race condition in the underlying stored procedure that populates a temporary table used by the view. Which of the following strategies would be MOST effective in diagnosing and resolving this issue within the application ?

A) Implement a retry mechanism with exponential backoff in the stored procedure to handle potential concurrency issues when writing to the temporary table.
B) Use Snowflake's 'GET_DDL' function to retrieve the SQL definition of the consumer's query and analyze it for potential errors.
C) Replace the temporary table with a permanent table with appropriate locking mechanisms to prevent concurrent modifications. Consumers will need to be notified of a minor version update.
D) Implement logging within the stored procedure to capture the execution flow and intermediate data values. Use 'SYSTEM$GET PREDECESSORS to track dependencies. Analyze the logs to identify the race condition. Use a session table rather than a temp table.
E) Isolate the portion of the stored procedure that writes to the temporary table into a separate stored procedure with 'EXECUTE AS CALLER privileges.

Solutions: