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Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. You are tasked with creating a new version (2.0) of a Snowflake Native Application. This new version introduces significant schema changes and requires data migration from the old schema in version 1.0 to the new schem a. You need to write the 'setup.sqr script for version 2.0. Which of the following steps or considerations are MOST critical to ensure a smooth and successful upgrade for existing customers? (Select TWO)

A) Use external stages for data backup, and leverage Snowflake Data Sharing to provide access to the older version data for consumers after upgrade.
B) Include only the schema changes in 'setup.sql' without any data migration logic. Assume users will manually migrate the data.
C) Use 'setup.sqr to perform a direct 'INSERT INTO ... SELECT FROM operation to move data from the old tables to the new tables after the new tables are created.
D) Implement robust error handling and logging within the 'setup.sqr script to capture any issues during schema migration or data transfer.
E) Before applying schema changes, backup the existing data using 'CREATE TABLE AS SELECT to safeguard against data loss during the upgrade process.

2. You are setting up an external stage to host your Snowflake Native Application Package on AWS S3. You've created an IAM role and Snowflake integration. However, when you try to create the application package with 'EXTERNAL STAGE , you receive an error indicating that Snowflake cannot access the S3 bucket. Which of the following could be the potential causes and solutions?

A) The SNOWFLAKE DEPLOYMENT role is not granted access to the Integration object. Solution: Grant USAGE privilege on the Integration to the SNOWFLAKE DEPLOYMENT role.
B) The Snowflake integration object is not correctly configured with the IAM role ARN. Solution: Verify the parameter in the integration object matches the IAM role ARN.
C) The IAM role does not have sufficient permissions to access the S3 bucket. Solution: Update the IAM role's policy to grant 's3:GetObject' and 's3:ListBuckeV permissions on the bucket.
D) The external stage URL is incorrect. Solution: Ensure the URL provided in the 'CREATE APPLICATION PACKAGE EXTERNAL STAGE command is the correct S3 bucket URL.
E) The S3 bucket policy does not allow access from the Snowflake AWS account. Solution: Update the bucket policy to explicitly allow access from the Snowflake AWS account, using the IAM role's principal.

3. You are tasked with publishing a Snowflake Native Application to the Snowflake Marketplace. Your application relies on specific external packages available through Anacond a. You've already built your application and are preparing to create the listing. Which steps are NECESSARY to ensure that consumer accounts can successfully install and use your application, considering external package dependencies?

A) Distribute the packages directly as part of the application code. This avoids external dependencies.
B) Include a 'requirements.txt file within your application package listing all required Python packages and their versions.
C) Consumers are automatically prompted to install any missing external packages upon installing the application; no specific action is required during listing creation.
D) When creating the Snowflake Marketplace listing, specify the required external packages under the 'External Packages' section using the fully qualified package name (e.g., 'snowflake.ml.modeling').
E) Explicitly import all required external packages within the application's setup script using 'import

4. You are deploying a containerized application within a Snowflake Native App using Snowpark Container Services (SPCS). This application needs to interact with Snowflake's metadata, specifically retrieving information about tables and views within the customer's account. Which of the following methods is the MOST appropriate and secure way to achieve this?

A) Using the 'snowflake-jdbc' driver directly within the container, configured with the customer's Snowflake account credentials, which are passed as environment variables.
B) Creating a REST endpoint within the container that accepts SQL queries as input and executes them against Snowflake using the application's internal service account, then returns the results as JSON.
C) Exposing a Snowflake UDF as an API endpoint that the container can call to retrieve metadata. The UDF executes the SQL queries against the INFORMATION SCHEMA.
D) Leveraging the Snowpark Python API within the container to execute SQL queries against the Snowflake INFORMATION_SCHEMA views.
E) Using the Snowflake CLI (snowsql) within the container, configured with the application's service account credentials, to execute queries against the INFORMATION SCHEMA.

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

Solutions: