Snowflake NAS-C01 : SnowPro Specialty - Native Apps

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Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. You are developing a Snowflake Native Application for a financial institution that needs to be deployed across multiple cloud providers (AWS, Azure, GCP) to minimize latency for their global customer base. The application relies on a secure and consistent method for accessing external services for real-time market dat a. Which of the following strategies would BEST ensure cross-cloud functionality and adherence to Snowflake Marketplace best practices for secure data access?

A) Use Snowflake's external functions with secure OAuth authentication to access the external services, leveraging Snowflake's built-in cross-cloud replication capabilities to ensure data consistency.
B) Hardcode cloud-specific endpoint URLs for the external services in your application code, using conditional statements to determine the correct endpoint based on the Snowflake cloud region.
C) Use Snowflake's Network Rules feature in conjunction with external functions that leverage API integration objects, storing the secret material necessary to authenticate with the external API. Leverage Snowflake's built-in cross-cloud replication capabilities to ensure data consistency.
D) Package the external service client libraries directly within the Native Application and configure the application to dynamically discover the nearest available endpoint at runtime, storing credentials within a Snowflake secret.
E) Create separate versions of the Native Application for each cloud provider, each with customized configurations for accessing the external services. Publish each version separately on the Snowflake Marketplace.

2. You are developing a Native App on Snowflake that needs to interact with an external REST API. To ensure proper security, you want to store the API key securely within the application package and use it for authentication. Which of the following is the MOST secure and RECOMMENDED method to accomplish this?

A) Store the API key as a secret using Snowflake's Secret Management feature and reference it within a secure UDE
B) Store the API key in a secure stage with encryption and grant SELECT privilege to the application role.
C) Hardcode the API key directly into the application code within a UDF (User-Defined Function).
D) Store the API key in a table within the application database with minimal access control, relying on Snowflake's data encryption at rest.
E) Create a key-pair stored procedure. Storing the API key as a secret, then decrypting the key during each API call.

3. You are designing a Snowflake Native Application using Snowpark Container Services to perform real-time sentiment analysis on streaming dat a. The application needs to subscribe to a Snowflake event table to receive incoming data, perform the analysis in the container, and store the results in another table in the consumer's account. Which of the following approaches represents the most efficient and scalable way to implement this data ingestion and processing pipeline?

A) Configure a Snowflake Task to periodically load data from the event table into an internal stage and then trigger the Snowpark Container Service to process the data from the stage.
B) Use a Snowflake Stream on the event table and continuously poll the Stream from within the Snowpark Container Service using the Snowpark API.
C) Utilize Snowflake Event Tables and subscribe the Snowpark Container Service to the event table. Process incoming events using a Snowpark Python function within the container, leveraging its ability to handle concurrent requests.
D) Implement a Snowpipe pipeline that continuously loads data from an external stage into the event table. Then use a database trigger on the event table to invoke a stored procedure that calls the Snowpark Container Service.
E) Create a Snowflake external table that directly reads data from the external source. Mount this external table within the container service and perform sentiment analysis directly on the external data.

4. A Snowflake Native App is designed to process data in a consumer's account. The application requires access to multiple shared databases provided by different providers. The application provider configures their application. Snowflake is configured so that the app can see all of these shared databases. Now, to enable the Native App with the privileges it requires, what are the necessary steps to allow the application's role, , to query tables in these shared databases?

A) Grant 'ALL PRIVILEGES on each shared database to the 'app_role'. This will allow the application to access all objects within the shared databases.
B) Grant 'IMPORTED PRIVILEGES' on each shared database to the 'app_role' . Additionally, grant 'SELECT privilege on each specific table or view the application needs to access in each shared database to the 'app_role' .
C) Grant USAGE on each shared database to the 'app_role' . Additionally, grant 'SELECT privilege on each specific table or view the application needs to access in each shared database to the 'app_role' .
D) Only grant 'IMPORTED PRIVILEGES on each shared database to the 'app_role' .
E) No additional steps are required. Once the application is installed, it automatically has access to all shared databases.

5. You've installed a Snowflake Native Application that provides advanced data analytics. The application requires a consumer-defined function (UDF), 'MASK SENSITIVE DATA, to be created in their account and used by the application. The application's setup script includes logic to check for the UDF's existence, but you want to ensure the application gracefully handles the case where the consumer has not yet created the UDF. Which of the following strategies can you implement to improve the application's resilience and provide a better user experience in this scenario? Select all that apply.

A) Implement error handling within the application's code to catch the 'SQL compilation error: UDF does not exists exception. Provide a user-friendly error message and instructions on how to create the UDF.
B) Within the application's SQL code, use the 'TRY FUNCTION' function to call 'MASK SENSITIVE DATA'. If the UDF does not exist, 'TRY FUNCTION' will return 'NULL' instead of raising an error.
C) Require the consumer to create the UDF before installing the application. The application setup script should fail if the UDF is not found, preventing installation.
D) Dynamically generate the application code using a stored procedure, only including the parts of the code that rely on if the function exists. Use 'SYSTEM$GET PRIVILEGES()' to check existence.
E) In the application's setup script, create a placeholder UDF with the same name and signature as 'MASK SENSITIVE DATA' that returns 'NULL'. The application logic can then handle 'NULL' values appropriately until the consumer provides the actual UDF.

Solutions: