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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Native Application Design and Creation	35%	- Application development workflow 1. Application roles and privileges 2. Building and versioning applications
Topic 2: Snowflake Native App Framework Overview	20%	- Native application concepts and architecture 1. Application packages and structure 2. Manifest files and setup scripts
Topic 3: Deployment and Marketplace Publishing	25%	- Distribution and lifecycle management 1. Marketplace listings and publishing 2. Version upgrades and release management
Topic 4: Installation, Testing and Troubleshooting	20%	- Validation and debugging 1. Logging and event tables 2. Tracing and troubleshooting workflows

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q218-Q223):

NEW QUESTION # 218
You are developing a Snowflake Native Application that uses a UDF to process data in the consumer's account. The UDF needs to access a specific table in the consumer's account but the UDF is running as Invoker's Rights (IR). Select all that apply to securely configure data access for this scenario using a data access framework and least privilege principles:

A. Create an API integration that enables the UDF to securely authenticate and access the data through an external service.
B. Create a secure view that exposes only the necessary columns of the table, granting 'SELECT privilege on the secure view to the application's invoker role. Configure the UDF to select from this secure view.
C. Grant 'SELECT privilege on the specific table directly to the application's invoker role.
D. Grant 'SELECT privilege on the specific table to the application's service user role. Configure the UDF to run as OWNER, and use 'EXECUTE AS OWNER.
E. Create a stored procedure running as OWNER, grant necessary privileges, then call this SP from UDF running as Invoker.

Answer: B,E

Explanation:
Options B and E are correct. Option B implements the data access framework with least privilege using secure views. Granting direct SELECT access (Option C) to the table to the invoker role is not recommended because it exposes the entire table and it will not work as IR UDF cannot directly access consumer data. Using external services(Option D) is an option, but not the most efficient for accessing local data. Option A won't work directly without proper data access framework as it is. Data access framework will solve this issue. Using an intermediate SP as OWNER called by the UDF as INVOKER is a valid approach.

NEW QUESTION # 219
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. 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').
B. Explicitly import all required external packages within the application's setup script using 'import
C. Include a 'requirements.txt file within your application package listing all required Python packages and their versions.
D. Consumers are automatically prompted to install any missing external packages upon installing the application; no specific action is required during listing creation.
E. Distribute the packages directly as part of the application code. This avoids external dependencies.

Answer: A

Explanation:
Option C is correct. The Snowflake Marketplace listing requires you to explicitly declare the external packages your application depends on in the 'External Packages' section. This allows Snowflake to automatically handle the package installation in the consumer's account. Options A and B are relevant during application development, not listing creation. Option D is not scalable for commonly used packages. Option E is incorrect because consumer intervention may be necessary but Snowflake must be aware of dependencies to guide them.

NEW QUESTION # 220
You are the developer of a Snowflake Native Application. You've created a new version of your application package, v2.0. You want to perform a controlled rollout, first releasing it to a subset of your consumers for testing before making it generally available. Which sequence of steps, leveraging Snowflake's lifecycle management features, would you use to achieve this?

A. 1. Instruct consumers to use the 'ALTER APPLICATION' command to upgrade to v2.0. 2. Monitor consumer feedback on the upgraded version.
B. 1. Create a dedicated APPLICATION role for the application. 2. Grant OWNERSHIP on the application package to the application's APPLICATION role. 3. Update the default version of the application package to v2.0.
C. 1. Create a new APPLICATION role for beta testers. 2. Grant USAGE privilege on the application package to the beta testers APPLICATION role. 3. Grant USAGE privilege on version v2.0 to the beta testers APPLICATION role. 4. Update the default version of the application package to v2.0.
D. 1. Create a new APPLICATION role for beta testers. 2. Grant USAGE privilege on version v2.0 to the beta testers APPLICATION role. 3. Instruct beta testers to manually specify VERSION = 'v2.0' when creating their application instances.
E. 1. Create a new APPLICATION role for beta testers. 2. Grant USAGE privilege on version v2.0 to the beta testers APPLICATION role. 3. Update the default version of the application package to v2.0.

Answer: D

Explanation:
The correct answer is C because creating a dedicated role, granting usage on the specific version, and instructing beta testers to specify the version during application instance creation allows for controlled access to the new version. Option A and B would expose the new version after setting default version. Option D only grants ownership and does not control version access for consumers. Option E requires manual intervention from all consumers which defeats controlled rollout purpose.

NEW QUESTION # 221
You are designing a Snowflake Native Application that requires managing application roles and permissions. Which of the following best practices should be followed regarding application roles and permissions in a Snowflake Native Application?

A. Define granular application roles with specific permissions, and provide documentation to the consumer on how to grant these roles to their users.
B. Bundle all application logic within a single stored procedure owned by the 'APPLICATION' role.
C. Grant all necessary privileges to the 'APPLICATION' role during setup, as this simplifies permission management for consumers.
D. Use the 'EXECUTE AS OWNER clause for all stored procedures to avoid granting explicit privileges to the application roles.
E. Avoid using application roles altogether and rely solely on the consumer's existing roles and permissions.

Answer: A

Explanation:
Defining granular application roles is crucial for security and maintainability. Consumers need to grant these roles to their users, so clear documentation is essential. Granting all privileges to the 'APPLICATION' role is overly permissive. 'EXECUTE AS OWNER can introduce complexities and might not always be appropriate. Relying solely on the consumer's roles limits the application's ability to control access. Bundling all logic into a single procedure hinders modularity and maintainability.

NEW QUESTION # 222
An application provider wants to grant the 'EXECUTE MANAGED TASK' privilege to a consumer account for a specific managed task within their Snowflake Native App. The provider uses the following SQL statement:

However, when the consumer account attempts to execute the managed task, they encounter an error indicating insufficient privileges. Which of the following reasons could explain why the consumer account is unable to execute the task, and how could the provider resolve the issue? Select two correct answers.

A. The 'EXECUTE MANAGED TASK' privilege must be granted directly to the consumer account's user role, not the application role. The provider needs to identify the user role used by the consumer and grant the privilege to that specific role.
B. The application role 'app_public' might not be activated within the consumer account's session. The consumer needs to ensure the application role is active using 'USE ROLE app_public;' before attempting to execute the managed task.
C. The managed task owner (the application) does not have the OWNERSHIP privilege on the database and schema where the managed task resides. The application must have OWNERSHIP on these objects.
D. The consumer account needs to explicitly grant the 'USAGE' privilege on the application database and schema to the application role 'app_public'. The provider needs to provide SQL to facilitate this in their setup script for consumer.
E. The 'EXECUTE MANAGED TASK' privilege needs to be granted with the 'WITH GRANT OPTION' clause to allow the consumer to further grant the privilege to other roles within their account.

Answer: B,D

Explanation:
Option B is correct because the application role needs to be activated in the consumer's session to use the granted privilege. Option D is correct because even with the EXECUTE MANAGED TASK privilege, the application role needs USAGE privileges on the database and schema containing the task to access it. Option A is incorrect because granting to the application role is the correct method. Option C focuses on the provider's application setup, which does not directly relate to the consumer's inability to execute after a successful grant. Option E isn't applicable since the consumer is attempting to execute, not grant privileges to others.

NEW QUESTION # 223
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