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Snowflake NAS-C01 Exam Syllabus Topics:

Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. You have listed a Snowflake Native Application on the Marketplace. Several customers have installed your application and are actively using it. You discover a critical bug that requires an immediate fix. What is the MOST effective approach to deploy this fix to all existing installations of your application with minimal disruption to the consumers?

A) Create a new version of the application package with the fix. Consumers will be notified of the available update and can choose when to upgrade.
B) Use the 'ALTER APPLICATION ... UPGRADE' command in the provider account to forcibly upgrade all consumer installations to the latest version.
C) Update the listing on the Marketplace with the corrected version of the application. Snowflake will automatically push the update to all consumers during their next maintenance window.
D) Create a new version of the application package with the fix. Then send a notification to all consumers with instructions on how to manually upgrade their applications to the new version.
E) Unlist the current application version from the Marketplace and relist the new, corrected version. This will force consumers to reinstall the application.

2. You are designing the setup script for a Snowflake Native Application. This application requires the creation of several views based on data residing in the consumer's account. These views need to be dynamically created based on a configuration table that is part of your application package. The configuration table contains view names, the underlying tables in the consumer's account, and the specific SQL queries for each view. The design must adhere to best practices for security and data governance. Which approach would you use for designing this setup script, considering security vulnerabilities and execution context?

A) Create a series of static 'CREATE VIEW' statements within the setup script, each targeting a predefined table in the consumer's account. The application will handle data filtering within these views.
B) Use a stored procedure, owned by the application, to dynamically generate and execute the 'CREATE VIEW statements. The stored procedure reads the view definitions from the configuration table and creates the views using dynamic SQL.
C) Directly construct and execute the 'CREATE VIEW' statements within the setup script using string concatenation, reading the view definitions from the configuration table. This minimizes code complexity and ensures immediate view creation.
D) Use dynamic SQL generation with proper escaping functions (e.g., to prevent SQL injection. Store the generated SQL in a temporary table, and then execute each statement from the temporary table using 'EXECUTE IMMEDIATE
E) Employ parameterized SQL (using '?' 7 placeholders) within the 'CREATE VIEW' statements, binding the view names and queries read from the configuration table. Execute these statements using 'EXECUTE IMMEDIATE to prevent SQL injection vulnerabilities.

3. A software company, 'Datalnsights', is developing a Snowflake Native Application that requires restricted access to a source data table in the consumer's account. Datalnsights wants to ensure that only the application can access the data, and the consumer cannot directly query it. What is the MOST secure and recommended approach Datalnsights should use within their application package to grant access?

A) Using a secure UDF within the application to access the source data table, ensuring data masking and redaction, with only the UDF being granted SELECT privileges on the table.
B) Creating a secure view on top of the source data table and granting 'SELECT privilege to the application role on the view.
C) Granting the ' USAGE privilege on the database and schema containing the source data table directly to the application role.
D) Granting 'SELECT privilege directly on the source data table to the application role.
E) Exposing the table directly through the application's setup script using 'GRANT SELECT ON TABLE TO APPLICATION ROLE app_role' .

4. Consider the following Snowflake Native App setup script snippet. The intention is to create an application role and grant it the necessary privileges to execute a stored procedure named 'MY PROCEDURE' within the application's data container. However, the script is not working as expected, and the stored procedure is failing with permission errors. Identify ALL of the issues in the following code.

A) The 'EXECUTE' privilege on the stored procedure should be granted to the 'application' role, not 'app_public' .
B) The application role 'app_public' cannot be created inside the setup script.
C) The 'USAGE privilege on the schema containing the stored procedure is missing.
D) The setup script does not require any additional privileges to assign 'EXECUTE on PROCEDURE
E) The application role must be granted the 'USAGE privilege on the database that contains the schema.

5. You are designing a Snowflake Native Application that allows consumer accounts to customize certain aspects of its behavior. Specifically, the application needs to support consumer-defined thresholds for alerting, stored as parameters. You want to allow consumers to set these thresholds through the 'ALTER APPLICATION' command. How can you achieve this MOST effectively while ensuring that these parameters are securely managed and accessible within your application code?

A) Define parameters within the application manifest (manifest.yml) with mutable set to True. Use the APPLICATION PARAMETER function within your application logic to retrieve these consumer-configurable values.
B) Use 'ALTER APPLICATION' to modify session variables, which are then accessible within the application code via 'SYSTEM$GET_VARIABLE'.
C) Define parameters within the application manifest (manifest.yml) with mutable set to True. Use the SYSTEM$GET PARAMETER function within your application logic to retrieve these consumer-configurable values.
D) Use 'ALTER APPLICATION' to directly modify values within a consumer-managed table, reading values from that table in your stored procedures.
E) Define parameters using the 'USING' clause during application deployment in the provider account. Then, use 'ALTER APPLICATION' to modify these parameters in the consumer account.

Solutions: