Snowflake SnowPro Specialty - Native Apps - NAS-C01

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Snowflake NAS-C01 Exam Syllabus Topics:

Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. You're tasked with designing a Snowflake Native Application that leverages Snowpark Container Services (SPCS). The application's backend service, 'my service' , requires several environment variables to function correctly (e.g., API keys, database connection strings). These variables must be securely managed and accessible within the containen You've already created the compute pool and service. Which of the following approaches represent the BEST practices for securely injecting these environment variables into in a way that aligns with Snowflake's recommended security model?

A) Utilize Snowflake's external functions to retrieve environment variables directly from a secure third-party vault during container runtime.
B) Store the environment variables in a publicly accessible cloud storage bucket (e.g., AWS S3) and have the container download them at startup.
C) Pass the environment variables as plain text arguments to the container's entrypoint script via the 'command' or Sargs section of the 'service.yamr file.
D) Use Snowflake's Secrets feature to store the environment variables and reference them in the 'service.yamr file used to define the SPCS service.
E) Hardcode the environment variables directly into the container image during the Docker build process.

2. You're developing a Snowflake Native App that includes a function, , which retrieves sensitive customer dat a. You want to ensure that this data is only accessible by authorized roles within the consumer's account, even after the application is installed. Which of the following strategies are appropriate for securing the application's data and function access? (Choose two)

A) Use a secure UDF to encapsulate the data retrieval logic, preventing direct access to the underlying tables.
B) Implement a masking policy on the underlying customer data table that restricts access based on the current role.
C) Grant the 'EXECUTE privilege on the function to the 'application role'.
D) Grant the 'EXECUTE privilege on the function to specific, consumer-defined roles within the consumer's account via the provider's setup script.
E) Rely solely on the consumer's account administrator to manage access to the function and data after installation.

3. You are developing a Snowflake Native App that needs to be configurable by the consumer during installation. You define parameters in the 'manifest.ymr file. During application installation, the consumer provides values for these parameters. How can you access these parameter values within your application's setup script ('setup.sql')?

A) Use the ' SYSTEM$GET PARAMETER function within the 'setup.sqr script, passing the parameter name as an argument. This function retrieves the current value of the specified parameter for the application.
B) Parameter values are automatically available as global variables within the 'setup.sqr script. You can reference them directly by their name as defined in the 'manifest.yml'.
C) You must use the 'GET_DDL' function to retrieve the parameter values from the application object definition. The returned DDL string will contain the parameter values, which you need to parse.
D) Parameter values are passed as arguments to the 'setup.sqr script. You need to define input parameters in the script declaration and then access them by their position or name.
E) Parameter values are stored in a dedicated table automatically created by Snowflake during application installation. You can query this table using standard SQL to retrieve the parameter values.

4. You are developing a Snowflake Native App that requires specific database privileges to be granted to the application role during installation. Which sections of the 'manifest.yml' file are primarily responsible for defining these required privileges, and how does Snowflake interpret and enforce them during the installation process?

A) The 'application.initial_version.artifacts' section is used to define the privileges. Snowflake parses this section to identify required privileges and grants them dynamically to the application role whenever a function or procedure is called that requires them.
B) A combination of the 'application.initial_version.privileges' and 'setup.script' sections. 'application.initial_version.privileges' defines initial static privileges, while 'setup.script' can grant additional privileges dynamically during installation if needed. Snowflake ensures that all specified privileges are granted before the application is fully operational.
C) The 'application.initial_version.privileges' section defines the privileges needed. Snowflake automatically grants these privileges to the application role defined in 'application.initial_version.role' before the setup script runs. This ensures the application has the necessary permissions to create objects and execute code within the consumer's account.
D) The 'application.initial_version.parameters' section. While parameters can control behavior, they do not define or manage privileges. Privileges must be manually configured by the consumer post-installation.
E) The 'setup.script' section defines the privileges needed. The application setup code must explicitly grant these privileges using 'GRANT statements to a specific application role. Snowflake does not automatically grant any privileges, so you have full control over permission management.

5. A data engineer, Alice, is developing a Snowflake Native Application. She wants to implement event sharing to notify consumers when certain data thresholds are breached within the application's managed tables. What is the MOST effective and secure approach for implementing this event sharing mechanism, ensuring that consumers can subscribe to these events without direct access to the application's internal tables?

A) Use Snowflake Streams and Tasks within the provider account to continuously monitor the managed tables and create events that are pushed to a shared data lake. Consumers then access the data lake.
B) Grant SELECT privileges on the managed tables directly to consumer accounts, using secure views to filter data.
C) Leverage Snowflake's event tables (using EVENT TABLES) to capture significant data changes, then create an API function using 'CREATE FUNCTION' with 'RETURNS TABLE' in the application package to expose these events to consumers through a secure share. Implement RBAC within the API function to manage access.
D) Implement a Python UDF that queries the managed tables and sends email notifications to consumers whenever a threshold is breached.
E) Create a series of external functions that are called when the application's data changes. These functions will call an external notification service that alerts consumers.

Solutions: