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Snowflake NAS-C01 Exam Syllabus Topics:

Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. A Native Application developer is creating a data product to be sold on the Snowflake Marketplace. The application needs read access to a shared database called 'RETAIL DATA'. The application logic includes a function that reads a lookup table, 'PRODUCT CATEGORIES', within this shared database. Which sequence of actions, executed by the application provider, ensures the application can access this table at installation time and after updates, following least privilege principles?

A) Grant 'IMPORTED PRIVILEGES' on 'RETAIL DATA to the application role. Rely on the consumer to grant 'SELECT access to tables within 'RETAIL DATA' to the application role.
B) Grant 'IMPORTED PRIVILEGES' on 'RETAIL DATA' to the application role. The application setup script should also GRANT USAGE on database RETAIL_DATA and then GRANT SELECT on to the application role.
C) Grant 'SELECT on to the application role during the application's setup script. Do not grant 'IMPORTED PRIVILEGES' on the database.
D) Grant USAGE on ' RETAIL_DATX to the application role during the application's setup script. Do not grant 'IMPORTED PRIVILEGES' on the database.
E) Grant 'IMPORTED PRIVILEGES' on to the application role. Grant 'SELECT on to the application role during the application's setup script.

2. You are developing a Snowflake Native Application that processes customer dat a. To comply with data residency requirements, you need to ensure the application processes data within the customer's Snowflake account. The application logic resides in a Snowpark Python stored procedure. During development, you test this procedure using the 'CALL' command. However, after installing the application in a customer's account, the procedure fails with a 'privilege insufficient' error. What are the MOST likely reasons for this and how can you rectify them within the package definition?

A) The application manifest is missing the 'external_network_accesS property set to 'true'. Add this to the manifest and use network rules if the application requires access to external resources.
B) The procedure owner is not the application. This can be resolved by transferring ownership to the application role using 'ALTER PROCEDURE (...) OWNER TO APPLICATION ROLE in the setup script.
C) The stored procedure requires the 'IMPORTED PRIVILEGES on the database. Grant this using 'GRANT IMPORTED PRIVILEGES ON DATABASE TO APPLICATION ROLE in the setup script.
D) The application role lacks sufficient privileges on the data sources within the customer's account. Grant the appropriate privileges (e.g., 'SELECT , 'INSERT) on the required tables/views to the application role in the setup script using 'GRANT SELECT ON TABLE TO APPLICATION ROLE
E) The stored procedure is missing the EXECUTE MANAGED ACCOUNT privilege. Add 'GRANT EXECUTE MANAGED ACCOUNT ON PROCEDURE TO APPLICATION ROLE to the setup script.

3. You are developing a Snowflake Native Application that allows consumers to schedule data transformations using a stored procedure.
This stored procedure needs to be able to access and update a configuration table within your application package, as well as read data from the consumer's tables. Which of the following approaches are valid and secure ways to grant the stored procedure the necessary privileges?

A) Create a secure view that exposes only the necessary columns from the consumer's tables. Grant the stored procedure 'SELECT privilege on the secure view using the ' EXECUTE AS OWNER clause and the application role 'USAGE on the schema containing the stored procedure.
B) Create a custom role within the application package with the necessary privileges to access the configuration table and the consumer's data. Grant this custom role to the stored procedure using the 'EXECUTE AS OWNER clause and the application role 'USAGE' on the schema containing the stored procedure.
C) Use the 'EXECUTE AS CALLER clause when creating the stored procedure and grant the application role 'USAGE' on the schema containing the stored procedure. This allows the stored procedure to execute with the privileges of the user calling it.
D) Grant the application role 'SELECT' and 'UPDATE privileges directly on the configuration table within the application package and the consumer's tables. This allows the stored procedure to access and modify the data as needed using the ' EXECUTE AS OWNER clause.
E) Grant the 'OWNERSHIP' privilege on the application package to the role executing the stored procedure. This provides the stored procedure with full control over all objects within the package.

4. Your Snowflake Native App's setup script needs to create a new schema and grant specific privileges to a custom role defined within the application. However, the setup script is failing with an error related to insufficient privileges. You've verified that the application role has the OWNERSHIP privilege on the application package. What is the MOST likely cause of this issue and how can it be resolved?

A) Setup scripts cannot create schemas, as schemas are automatically provisioned. Only tables, views and other objects can be created by the script.
B) The application role lacks the CREATE SCHEMA privilege on the database. Grant the CREATE SCHEMA privilege on the database to the application role using 'GRANT CREATE SCHEMA ON DATABASE TO APPLICATION ROLE
C) The setup script is attempting to create a schema with the same name as an existing schema in the consumer account. Ensure the schema name is unique within the consumer account.
D) The setup script must explicitly activate the application role before creating the schema. Add the following line to the setup script: 'USE ROLE
E) The application role needs the USAGE privilege on the database. Grant USAGE on the database to the application role using 'GRANT USAGE ON DATABASE TO APPLICATION ROLE

5. You are developing a Snowflake Native Application that uses a Stored Procedure to orchestrate complex data processing tasks. This stored procedure is defined within the application package. When testing in test mode, which of the following security considerations are paramount to ensure the procedure executes correctly and securely, without unintentionally granting excessive privileges to the consumer?

A) Define the stored procedure with the 'EXECUTE AS OWNER clause. This ensures the procedure always runs with the privileges of the application owner, regardless of the caller's permissions.
B) Ensure that any roles granted to the application role also have the necessary privileges to execute the stored procedure, and access the objects it interacts with. The stored procedure must be defined with 'EXECUTE AS CALLER.
C) Create a dedicated service user specifically for the application and grant only the necessary privileges to this user. The stored procedure should then execute with the privileges of this service user using the 'EXECUTE AS CALLER clause. This allows granular access control.
D) Grant the 'EXECUTE' privilege on the stored procedure to the 'PUBLIC' role during test mode. This simplifies testing but should be revoked before publishing the application.
E) Since the application is running in test mode, security is not a major concern. Granting all necessary privileges directly to the application role simplifies testing without compromising the consumer's security.

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