Snowflake SnowPro Specialty - Native Apps - NAS-C01 Exam Questions [2026]

QUESTION NO: 1
You are developing a Snowflake Native Application that relies on external functions (UDFs or external functions using API integration) to enrich dat a. After installing the application in a customer's account, you observe that the external functions are failing intermittently. The error messages indicate network connectivity issues. Which of the following troubleshooting steps would be MOST effective in diagnosing and resolving this problem from the provider's perspective, assuming you cannot directly access the customer's network configuration?

A. Monitor the external functions calls from system $ table and analyze the latency and error codes. B. Migrate the external functions to use Snowflake's Snowpark Container Services to ensure they run within the Snowflake environment and bypass any network restrictions. C. Implement retry logic within the external function calls with exponential backoff. Log all failed attempts, including timestamps and error messages, within your provider's environment, for later analysis. Provide the customer with aggregated success/failure metrics from your logs. D. Create a separate Snowflake Native App that only tests network connectivity to the external API endpoint. Ask the consumer to install and run the application, and provide you with the results. E. Instruct the customer to check their network firewall rules to ensure that outbound traffic to your API endpoint is allowed. Provide them with a list of IP addresses for your service.

Correct Answer: C

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QUESTION NO: 2
You are developing a Snowflake Native App that processes sensitive customer dat a. To comply with regulations, you need to ensure that data remains within the customer's Snowflake account and is not exposed to your provider account. Which of the following architectural approaches are MOST effective for achieving this goal?

A. Leverage external stages to store data outside of Snowflake, and use the app to access the data through the stage connection. B. Utilize external functions with secure data sharing, ensuring all processing logic resides in the consumer's account. C. Employ data clean room functionality, leveraging agreed-upon procedures and technical controls to prevent inappropriate data disclosure. D. Implement data masking policies within the provider account and share only the masked data with the consumer. E. Use secure UDFs deployed within the consumer's account, allowing the app to process data directly without moving it.

Correct Answer: B,C,E

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QUESTION NO: 3
You are developing a Snowflake Native App that processes streaming data from a Kafka topic. The app needs to continuously ingest data, perform real-time transformations, and store the results in a Snowflake table within the app's managed database. Which Snowflake feature(s) and approach(es) are BEST suited for implementing this data ingestion and processing pipeline within the Native App?

A. Use Snowflake Pipes to continuously ingest data from the Kafka topic into a staging table and then use stored procedures to periodically transform and load the data into the target table. B. Implement a custom Kafka consumer within a Java User-Defined Function (UDF) to read data from the Kafka topic and directly insert it into the target table. C. Leverage Snowflake Snowpipe Streaming to ingest data directly from the Kafka topic into the target table, combined with Snowflake Tasks to handle any required data transformations. D. Employ a combination of Snowflake Snowpipe Streaming for data ingestion and Dynamic Tables for continuous, incremental data transformations within the application's managed database. E. Use a Snowflake Stream to capture changes in the Kafka topic and then use a Snowflake Task to periodically merge these changes into the target table.

Correct Answer: D

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QUESTION NO: 4
A Snowflake Native App provider is working on the consumer-side testing of their application. They need to verify that specific events are being recorded correctly in the Event Table within the consumer's account. They are using the Snowflake Native Apps framework's testing capabilities. Which of the following approaches would be MOST reliable for validating the contents of the Event Table during automated testing?

A. Grant SELECT privileges on the Event Table to a role in the consumer account that is accessible by the provider's testing framework. B. Use the 'SHOW EXTERNAL TABLES command within the consumer account to inspect the Event Table's structure and contents. C. Directly query the Event Table from the provider's account using a cross-account secure data share. D. Implement a stored procedure within the Native App that queries the Event Table and returns the results to the provider through a secure output parameter. E. Utilize the testing framework's built-in assertion capabilities to verify that specific events are present in the Event Table based on expected values.

Correct Answer: E

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QUESTION NO: 5
You are developing a Snowflake Native App that requires specific Snowflake features and functionalities. To ensure compatibility and proper execution across different consumer environments, you need to define the minimum required Snowflake version. Which section in the manifest file is used to specify the minimum Snowflake version required by the application and what is the correct syntax?

A. The 'configuration' section. Syntax: '"configuration": {"required_snowflake_version": "7.0"}' B. The 'api_version' section. Syntax: '"api_version": along with in the 'applications section. C. The 'setup' section. Syntax:

D. The 'dependencies' section. Syntax: '"dependencies": [{"snowflake_version":">=7.0"}] E. The 'application' section. Syntax: '"application": {"min_snowflake_version": "7.0"}'

Correct Answer: E

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QUESTION NO: 6
You are designing a Snowflake Native App that processes sensitive customer dat a. To comply with data residency requirements, you need to ensure the application processes data exclusively within the consumer's Snowflake account and does not transmit data outside.
Which features of the Snowflake Native App Framework support this requirement? (Select all that apply)

A. Snowflake Marketplace: Provides a secure and governed platform for distributing the application without requiring direct access to the consumer's account. B. External Functions: Enables the application to call external services for data processing and enrichment, ensuring all data remains within the Snowflake environment. C. Secure Data Sharing: Allows the application to access data directly within the consumer's account without copying or moving it. D. Stored Procedures: Allows the application to execute custom logic within the consumer's Snowflake environment, processing data locally. E. Application Packages: Package the entire application including code and configuration, ensuring data locality and not data transfer outside environment

Correct Answer: C,D,E

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QUESTION NO: 7
You are preparing a Snowflake Native Application for its initial release. You have a 'setup.sqP file that creates necessary tables and roles. You are also planning for future updates. Which of the following practices will BEST ensure smooth, version-upgrade compatible deployments for your application's consumers?

A. Include detailed comments in 'setup.sql' explaining the purpose of each SQL statement and the logic behind schema changes. B. Avoid using 'CREATE OR REPLACE TABLE in 'setup.sqr and always use 'CREATE TABLE IF NOT EXISTS. C. Use stored procedures within 'setup.sqr to encapsulate schema changes and data migrations, making them idempotent. D. Always drop and recreate all application objects in each new version's 'setup.sqr to ensure a clean slate. E. Use a consistent naming convention for all application objects and clearly document any breaking changes in release notes.

Correct Answer: A,C,E

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QUESTION NO: 8
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. 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. B. 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. C. 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. D. 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. E. 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.

Correct Answer: E

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QUESTION NO: 9
You are managing a Snowflake Native Application that allows consumers to configure certain aspects of its behavior through a dedicated configuration table. The application logic relies on specific values within this table to function correctly. During a new version deployment, you need to ensure that existing consumer configurations are migrated to the new version's configuration table structure without disrupting the application's availability. Which of the following strategies would you use to perform a zero-downtime configuration migration?

A. Drop the existing configuration table and recreate it with the new schema during the application upgrade process. The application will automatically adapt to the new schema once the upgrade is complete. B. Implement a parallel migration strategy. Create a new configuration table with the new schema alongside the existing one. Update the application code to read from both tables concurrently, prioritizing the new table if values are present. Schedule a background job to migrate data from the old table to the new table. Once the migration is complete and verified, switch the application to solely read from the new table and eventually drop the old one. C. Deploy the new application version with a feature flag that disables the configuration table dependency. Run a script in the background to migrate the data to the new table and then flip the feature flag to enable the new configuration. D. Rename the existing configuration table to a backup name. Create a new configuration table with the new schema. The application will start using the new empty table, and consumers can manually reconfigure their settings. E. Perform an in-place alteration of the existing configuration table to match the new schema. This might involve adding, dropping, or renaming columns. Update the application code to reflect these changes. If you need to rename tables, then use SALTER TABLE ... RENAME to minimize downtime.

Correct Answer: B,E

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QUESTION NO: 10
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. Only grant 'IMPORTED PRIVILEGES on each shared database to the 'app_role' . D. No additional steps are required. Once the application is installed, it automatically has access to all shared databases. E. 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' .

Correct Answer: B

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QUESTION NO: 11
You are managing a Snowflake Native Application that provides data enrichment services. Over time, you've accumulated several application package versions: v1 .0 (initial release), v1.1 (bug fixes), v2.0 (new features and schema changes), and v2.1 (performance improvements for v2.0). Some consumers are still using v1 .0, while others have upgraded to v2.1. You need to retire v1.0 to reduce maintenance overhead. Which of the following actions and considerations are MOST important when deprecating vl .0? Select TWO that apply.

A. Immediately drop version v1.0 from the application package to free up storage space. B. Automatically migrate all consumers still using v1.0 to the latest version (v2.1 ) without their consent to simplify management. C. Update the application's metadata in the Snowflake Marketplace to indicate that v1.0 is no longer supported. D. Keep v1.0 indefinitely to ensure compatibility with all existing application instances, regardless of usage. E. Identify consumers still using v1.0. Communicate the deprecation timeline and provide clear instructions on how to upgrade to a supported version. Offer support during the transition.

Correct Answer: C,E

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QUESTION NO: 12
Consider the following 'manifest.yml' file for a Snowflake Native App:

A. The application will fail to install because no 'privileges' are listed in the manifest file. All applications must declare the necessary privileges. B. The application version will default to '0.1.0' and the application can be installed successfully by any consumer account. C. The application version will default to '0.0.1'. If the application includes a view, then the view needs access to the user data and must have a privilege declared to allow users to view data from the application. D. The application will fail to install because the version property is missing. Each version must explicitly be specified in the manifest file. E. The application version will be automatically assigned by Snowflake during the installation process on the consumer side.

Correct Answer: D

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QUESTION NO: 13
You are developing a Snowflake Native Application designed to be deployed by various consumers from the Snowflake Marketplace. The application interacts with user-provided data through secure UDFs and external functions. To ensure minimal impact and prevent unintended data access, how should you configure the application's security context and privileges when creating the application package?

A. Use the 'CALL APPLICATION.API GRANT PRIVILEGE command, and grant only the 'USAGE privilege on the shared database containing consumer data, along with the ' EXECUTE privilege on the UDFs and external functions. B. Grant OWNERSHIP privilege on all schemas and tables to the application's service account. C. Grant 'ALL PRIVILEGES on the database containing consumer data to the application role. D. Define roles within the application and grant 'USAGE' on all schemas and 'SELECT on all tables to these roles. E. Create a separate application role with minimal privileges, and grant only 'USAGES on the database and 'EXECUTE' on the relevant functions to that role. Use 'CALL to grant USAGE on the share.

Correct Answer: E

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