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Snowflake NAS-C01 Exam Syllabus Topics:

Snowflake SnowPro Specialty - Native Apps Sample Questions:

Question 1

A Snowflake Native Application provider is deploying their application in multiple regions (AWS US-East-l and AWS EU-Central-l). The application relies on external functions that interact with a third-party API. The provider wants to optimize for both latency and cost while ensuring high availability. Which of the following strategies represents the MOST effective approach for configuring and deploying these external functions to meet these requirements? Select two.

A. Host the external function code directly within the Snowflake application package and leverage Snowflake's serverless compute to execute the function logic without relying on external APIs.
B. Create a single external function that uses a conditional statement to route requests to different API endpoints based on the Snowflake region where the function is being called. This approach reduces management overhead.
C. Utilize Snowflake's cross-region replication feature to automatically replicate the external functions between regions. This ensures that the functions are always available in both regions.
D. Deploy separate external functions in each region, pointing to API endpoints hosted in the respective regions. Configure each external function with the same security integration to simplify access management.
E. Configure a global load balancer in front of the third-party API endpoints and point all external functions to the load balancer's endpoint. This allows the load balancer to route requests to the closest available API endpoint.

Question 2

You are developing a Snowflake Native Application that leverages Snowpark Python for data transformation. Your CI/CD pipeline utilizes GitHub Actions for automated testing and deployment. One of your Snowpark functions relies on a UDF that reads data from an external stage. To ensure seamless integration testing in different environments (development, staging, production), you need to dynamically configure the stage URL during the test execution. Consider that you're using environment variables to store environment-specific values. Which of the following approaches provides the MOST secure and maintainable way to configure the stage URL in your Snowpark test code?

A. Create a Snowflake Secret object to store the stage URL. Within your Snowpark Python code, use the function to retrieve the secret value and pass it to the UDF.
B. Define the stage URL as a global variable within your Snowpark session. Set the global variable to the correct URL at the beginning of the test script, using 'os.environ.get()'.
C. Hardcode the stage URL directly within the Snowpark Python code. Use different code branches for each environment to manage the different URLs.
D. Store the stage URL in a configuration file (e.g., JSON or YAML) within the application package. Read the configuration file during test execution and pass the URL to the UDE
E. Use the 'os.environ' module in Python to read the stage URL from the environment variable. Pass the URL directly to the UDF as a string argument.

Question 3

You are developing a Snowflake Native Application that relies on external Python packages. You've successfully added the necessary packages to the stage associated with your application package using 'snowflake-cli' during development. However, when testing the application in a consumer account, you encounter errors indicating that these packages are not found. What are the most likely reasons for this issue and how can you resolve them?

A. The packages were not correctly added to the stage. Verify that the packages are in the stage specified in the 'snowflake.yml' file, and that the application has the necessary permissions to read from the stage within the setup script.
B. The consumer account's Python environment is incompatible with the packages used by the application. Instruct the consumer to update their Python environment to match the application's requirements.
C. The consumer account does not have access to the Snowflake Marketplace where the packages are hosted. Request the consumer to enable access to the required marketplace listings.
D. The stage is not automatically shared with the consumer account as part of the application package. Ensure that your setup script includes a step to create a share and grant usage on the stage to the consumer account.
E. The 'snowflake.yml' file does not correctly specify the stage where the Python packages are located. Update the 'snowflake.yml' file to include the correct stage URL and ensure the application's setup script creates the stage and uploads the packages.

Question 4

You are developing a Snowflake Native Application that requires access to a specific stage in the consumer's account to read configuration files. The application needs to be able to create temporary files in the same stage during its execution. Which set of privileges needs to be granted on the stage to the application's service account, and how do you grant them?

A. Grant READ and WRITE privileges on the stage using Snowsight, and ensure the application uses a service integration with appropriate permissions.
B. Grant READ and WRITE privileges on the stage to the application's service account using the 'GRANT USAGE ON INTEGRATION TO APPLICATION command.
C. Grant OWNERSHIP on the stage to the application's service account. No other privileges are required.
D. Grant USAGE on the database, USAGE on the schema containing the stage, and READ and WRITE privileges on the stage to the application's service account using a combination of SQL commands and Snowsight.
E. Grant USAGE and READ privileges on the stage and CREATE FILE on the schema containing the stage to the application's service account using Snowsight.

Question 5

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

Solutions: