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Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. You are developing a Snowflake Native Application with a custom setup script. Within the setup script, you need to perform different actions based on whether the application is being installed for the first time in a consumer's account, or if it's an upgrade from a previous version. Which of the following functions or techniques can you reliably use within the setup script to determine if the current execution is a fresh installation vs. an upgrade? (Assume the app version is maintained and accessible as a variable 'current_version' .)

A) Query the 'INFORMATION_SCHEMAPPLICATIONS' view to check if the application name already exists in the consumer's account.
B) Attempt to read a known persistent setting from the application's metadata. If the setting exists, it's an upgrade; otherwise, it's a fresh install. (Requires metadata setup in a previous version)
C) Use 'SYSTEM$GET_PREVIOUS_VERSION()' function inside the setup script. If it returns NULL, it is the first install.
D) Check if the current version is '1.0', assuming the initial version of the application will always be '1.0'.
E) Use the table 'APPLICATION_REGISTRY' function to check for an existing entry for the application in the current account.

2. You are designing a Snowflake Native App that needs to store temporary state information specific to each consumer account. This state information should not be directly accessible to the consumer but must be persistent across application sessions. Which of the following approaches are valid and recommended for storing this data?

A) Store the state information in a private schema within the application package, ensuring that consumers do not have direct access.
B) Use external stages connected to a provider controlled AWS S3 bucket or similar.
C) Create secured views that expose the state data but control access through application roles.
D) Create a public schema in the application package and store the state information in tables within that schema. Grant SELECT access to the consumer's account on these tables.
E) Utilize internal stages within the application package to store the state data as files.

3. 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) Grant SELECT privileges on the Event Table to a role in the consumer account that is accessible by the provider's testing framework.
C) Directly query the Event Table from the provider's account using a cross-account secure data share.
D) Use the 'SHOW EXTERNAL TABLES command within the consumer account to inspect the Event Table's structure and contents.
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.

4. You are developing a Snowflake Native App that processes sensitive customer dat a. To comply with regulations, you need to ensure that data remains within the customer's Snowflake account and is not exposed to your provider account. Which of the following architectural approaches are MOST effective for achieving this goal?

A) Leverage external stages to store data outside of Snowflake, and use the app to access the data through the stage connection.
B) Employ data clean room functionality, leveraging agreed-upon procedures and technical controls to prevent inappropriate data disclosure.
C) Use secure UDFs deployed within the consumer's account, allowing the app to process data directly without moving it.
D) Utilize external functions with secure data sharing, ensuring all processing logic resides in the consumer's account.
E) Implement data masking policies within the provider account and share only the masked data with the consumer.

5. In a Snowflake Native Application, you are using Streamlit to present data to different user roles. You need to dynamically adjust the Streamlit UI based on the user's privileges. Specifically, if a user has the 'MODIFY' privilege on a particular table, you want to display an 'Edit' button. Otherwise, the button should be hidden. Assuming you are already connected to Snowflake via Streamlit and have the user's role information, which of the following approaches is the most secure and efficient way to determine if the current user's role has the 'MODIFY' privilege on the 'MY TABLE table in the 'MY SCHEMA' schema? (Select two)

A) If this hypothetical function return 'TRUE', then the user_role has privilege. Execute the SQL query: 'SELECT COUNT( ) FROM INFORMATION SCHEMA.TABLE PRIVILEGES WHERE GRANTEE = CURRENT ROLE() AND TABLE_SCHEMA = 'MY_SCHEMA' AND TABLE_NAME = 'MY_TABLE' AND PRIVILEGE = 'MODIFY". Check if the count is greater than 0.
B) Execute the SQL query SELECT HAS PRIVILEGE('MODIFY', 'TABLE', 'MY SCHEMA.MY TABLE')' as the application role. If the result is 'TRUE', then the application role has privilege.
C) Utilize the 'snowflake.permissions' module (if it existed) and call a hypothetical function like 'MY TABLE', 'MY_SCHEMA', user_role)'.
D) Implement a custom stored procedure in Snowflake that encapsulates the privilege check logic. Call this stored procedure from Streamlit, passing the schema, table, and privilege name as parameters. Ensure the stored procedure runs with caller's rights.
E) Execute the SQL query SELECT CURRENT ROLE()' to fetch the user's current role, then execute 'SHOW GRANTS TO ROLE and parse the output in Python to check for the 'MODIFY privilege on '

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