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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Application Installation & Testing	20%	- Provider and consumer workflows - Installation procedures and dependencies - Debugging and troubleshooting - Testing strategies and validation
Topic 2: Application Deployment & Distribution	25%	- Upgrades and lifecycle management - Versioning and release management - Publishing to Snowflake Marketplace - Listing types and monetization
Topic 3: Application Design & Creation	35%	- Application packages and objects - Native App Framework architecture - Security and access control - Manifest files and configuration - Setup scripts and application logic
Topic 4: Advanced Features & Management	20%	- Event logging and telemetry - Governance and compliance - Billing events and cost monitoring - Integration with Snowpark and external services

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q238-Q243):

NEW QUESTION # 238
You are building a Snowflake Native Application that needs to store configuration data within the application package. This configuration data needs to be accessible by all components of the application, but should not be directly exposed to the consumer. What is the RECOMMENDED approach to securely store and access this configuration data?

A. Store the configuration in a file within the application package and load it into a temporary table during application initialization. Only grant access to the application role.
B. Encrypt the configuration data and store it in a named internal stage within the application package. Create a UDF within the application to decrypt and retrieve the data when needed.
C. Store the configuration data as environment variables within the application's setup script.
D. Store the configuration data in a JSON file within a stage in the provider account and grant the application role USAGE privilege to the stage.
E. Store the configuration data in a dedicated table within the application database and grant SELECT privilege only to the application role.

Answer: B

Explanation:
Encrypting the configuration data and storing it in a named internal stage (Option D) provides the highest level of security. The encryption ensures that the data is protected even if the application package is compromised. The UDF allows controlled access to the decrypted data within the application, preventing direct exposure to the consumer. Option A exposes data outside of the application, option B provides more access then needed. Options C and E are not appropriate. Option C is volatile, option E stores data outside of the install package.

NEW QUESTION # 239
You are developing a Snowflake Native Application that requires robust role-based access control. The application provides data transformation services to consumer accounts. You want to define distinct roles for different levels of access: 'TRANSFORMER_ADMIW (full control), 'TRANSFORMER USER (execute transformations), and 'TRANSFORMER OBSERVER (read-only access to metadata). In the setup script, which SQL statements are the MOST secure and efficient way to achieve this while adhering to Snowflake's recommended practices for application roles?

Answer: D

Explanation:
Option E is the MOST secure and recommended approach. It explicitly grants ownership to the role on the 'DATABASE and the 'SCHEMA' named 'app_stage' within the 'DATABASE. 'REVOKE CURRENT GRANTS' ensures that any previously granted privileges are removed, preventing unintended access. All roles are created within the 'app_public' schema to ensure they are application roles. All other roles are granted usage on the database and application schema in the 'app_db' database. Option A uses a naming convention where the schema names are identical to the role names, which is unusual and doesn't represent standard practices for Snowflake native applications. Options B lacks the important practice of creating the roles within the 'app_public' schema, rendering them non-application roles. Options C and D incorrectly refers to 'app_stage' outside the 'app_db' database, as it is not an fully qualified name.

NEW QUESTION # 240
You are developing a Snowflake Native App that requires accessing sensitive user data within the consumer's account. To ensure data privacy and security, you need to implement appropriate access controls. Which of the following approaches is the MOST secure and recommended way to grant your app access to this data, assuming the data is stored in a table named 'user_data' ?

A. Granting 'USAGE privilege on the 'user_data' table directly to the application role provided by Snowflake Native App Framework.
B. Using a stored procedure with 'EXECUTE AS CALLER that accesses the 'user_data' table. Grant 'EXECUTE privilege on the stored procedure to the application role.
C. Granting 'SELECT privilege directly on the 'user_data' table to the application role provided by Snowflake Native App Framework.
D. Creating a custom role in the consumer account with 'SELECT privilege on the 'user_data' table and granting that role to the application.
E. Defining a secure view that filters the table based on the application role and granting 'SELECT privilege on the secure view to the application role provided by Snowflake Native App Framework.

Answer: E

Explanation:
The most secure approach is to use a secure view. This allows you to control which rows and columns the application can access. Granting 'SELECT directly to the application role is generally discouraged as it exposes the entire table. Using 'EXECUTE AS CALLER has security implications and might not be desirable. Creating custom roles in the consumer account adds complexity to the application deployment.

NEW QUESTION # 241
You are developing a Snowflake Native Application that processes customer order dat a. As part of the setup script, you need to create a shared database and a secure view to expose aggregated order statistics to consumer accounts. Which of the following is the MOST secure and efficient way to achieve this, considering data governance and performance?

A. Create a regular view in the provider account and grant SELECT privileges to the application role. Then, create a shared database and share this view.
B. Create a secure materialized view in the provider account and grant SELECT privileges to the application role. Then, create a shared database and share this materialized view.
C. Create a secure view in the application database using the APPLICATION role. Create a shared database and share the APPLICATION database. The consumer account then uses a local view pointing to the shared secure view.
D. Create a regular view in the application database using the APPLICATION role. Create a shared database and share the APPLICATION database. The consumer account then uses a local view pointing to the shared view.
E. Create a secure view in the provider account and grant SELECT privileges to the application role. Then, create a shared database and share this view.

Answer: C

Explanation:
Creating a secure view in the application database with the APPLICATION role and then sharing the application database is the most secure option. Using the APPLICATION role ensures only the application can access the underlying data. Secure views ensure that data is masked according to the view's definition when accessed by consumers. Consumer accounts use a local view to interact with the shared data, providing an abstraction layer. Materialized views are generally not shared directly because they represent pre-computed data and may not reflect the latest changes.

NEW QUESTION # 242
You are managing the release of a new version (v2.0) of your Snowflake Native Application that introduces significant schema changes to shared tables accessed by consumer accounts. To minimize disruption during the upgrade, you want to implement a phased rollout while ensuring backward compatibility for consumers who haven't yet upgraded. Which of the following strategies would allow you to achieve this goal effectively? (Select TWO)

A. Publish v2.0 without any schema changes and rely on consumers to manually migrate their data to new tables after upgrading.
B. Implement API versioning within your application code and provide compatibility layers to handle requests from consumers running older versions.
C. Use dynamic SQL within stored procedures to conditionally access either the old or new schema based on the consumer's account ID, identified through a custom configuration table.
D. Create views on top of the new schema in v2.0 that emulate the old schema from vl .0. Grant consumers 'USAGE' on these views until they upgrade.
E. Create separate versions of the shared tables for vl .0 and v2.0, using views to present a unified interface. Grant consumer 'USAGE on view after upgrading.

Answer: B,D

Explanation:
Options A and D are both viable strategies. Creating views on top of the new schema that emulate the old schema provides backward compatibility by maintaining the expected data structure for consumers who have not yet upgraded. Implementing API versioning within the application code allows you to handle requests from consumers running older versions, ensuring that their existing integrations continue to function. Option B introduces unnecessary complexity and performance overhead with dynamic SQL. Option C relies on manual data migration by consumers, which is prone to errors and delays. Option E doubles the storage requirements by creating separate table copies.

NEW QUESTION # 243
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