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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Snowflake Native App Framework Overview	20%	- Understand Snowflake architecture, features, tools, and best practices 1. Cloud-based computing and storage concepts 2. Account security and access management 3. Data sharing and protection mechanisms
Snowflake Native Applications Installation and Testing	20%	- Install and test native applications 1. Validate application functionality and performance
Snowflake Native Applications Design and Creation	35%	- Apply Snowflake best practices while building native application workloads 1. Design scalable applications 2. Build, distribute, and monetize apps in Snowflake - Create and manage billing events and cost monitoring techniques 1. Formulate Snowflake native application workflows and procedures
Snowflake Native Applications Deployment	25%	- Build, version, and release native applications 1. Use Snowflake's marketplace 2. Use data sharing for app interoperability

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q99-Q104):

NEW QUESTION # 99
Your Snowflake Native App's setup script needs to create a new schema and grant specific privileges to a custom role defined within the application. However, the setup script is failing with an error related to insufficient privileges. You've verified that the application role has the OWNERSHIP privilege on the application package. What is the MOST likely cause of this issue and how can it be resolved?

A. The setup script is attempting to create a schema with the same name as an existing schema in the consumer account. Ensure the schema name is unique within the consumer account.
B. The setup script must explicitly activate the application role before creating the schema. Add the following line to the setup script: 'USE ROLE
C. The application role lacks the CREATE SCHEMA privilege on the database. Grant the CREATE SCHEMA privilege on the database to the application role using 'GRANT CREATE SCHEMA ON DATABASE TO APPLICATION ROLE
D. Setup scripts cannot create schemas, as schemas are automatically provisioned. Only tables, views and other objects can be created by the script.
E. The application role needs the USAGE privilege on the database. Grant USAGE on the database to the application role using 'GRANT USAGE ON DATABASE TO APPLICATION ROLE

Answer: B,C

Explanation:
The application role needs the CREATE SCHEMA privilege on the database to create new schemas (A). Additionally, the setup script must activate the application role before executing any commands that require that role's privileges (D). Schema creation is allowed by setup scripts. USAGE privilege and schema uniqueness issues are less relevant if CREATE SCHEMA is missing and the role is not activated within the setup script.

NEW QUESTION # 100
Consider the following Snowflake Native App setup script snippet. The intention is to create an application role and grant it the necessary privileges to execute a stored procedure named 'MY PROCEDURE' within the application's data container. However, the script is not working as expected, and the stored procedure is failing with permission errors. Identify ALL of the issues in the following code.

A. The application role 'app_public' cannot be created inside the setup script.
B. The 'EXECUTE' privilege on the stored procedure should be granted to the 'application' role, not 'app_public' .
C. The 'USAGE privilege on the schema containing the stored procedure is missing.
D. The setup script does not require any additional privileges to assign 'EXECUTE on PROCEDURE
E. The application role must be granted the 'USAGE privilege on the database that contains the schema.

Answer: C,E

Explanation:
The 'app_public' role is a valid role that applications can create inside of the setup script. (A) is not correct. The application role Capp_public' in this case) requires USAGE' on the schema containing the stored procedure to be able to access objects within it. (B) is correct. EXECUTE on the procedure should be granted to 'app_public' if that is the role designated for executing it, so (C) is incorrect. The application role also needs USAGE' on the database to access the schema and its objects, so (D) is correct. (E) is incorrect because 'EXECUTE' privilege can only be granted once you have access to the schema where the procedure resides. Therefore, access to database and schema are necessary to grant privilege to any object.

NEW QUESTION # 101
You are managing versions of a Snowflake Native App that persists data to tables within the consumer's account. You want to provide consumers with the ability to rollback to a previous version of the application without losing dat a. Which combination of Snowflake features and practices would best support this requirement?

A. Store data version history within the application and reconstruct historical states on demand. This requires complex data modeling and coding.
B. Combine Snowflake's Time Travel feature with automated scripts within your application that identify and restore tables affected by the rollback to the specific point in time when the previous version was active. Provide users with a simplified rollback process.
C. Require consumers to manually back up their data before each application upgrade and provide instructions on how to restore it.
D. Implement a backup and restore mechanism within your application, creating regular snapshots of the consumer's tables and storing them in a secured location. Provide a rollback procedure that restores data from the appropriate snapshot.
E. Rely solely on Snowflake's Time Travel feature on the consumer's tables, instructing users to manually restore data to the desired point in time after rolling back the application.

Answer: B,D

Explanation:
Combining Time Travel with automated scripts (D) gives consumers a simple process and maintains data integrity. The backup and restore mechanism (B) adds an extra layer of protection, and could potentially allow for longer retention than the standard Time Travel configuration. (A) places too much burden on the consumer. (C) is too complex. (E) is not user friendly and prone to errors. Implementing scripts to manage time travel on the consumers' data warehouse is more effective than relying on them to do it themselves.

NEW QUESTION # 102
You are designing a Snowflake Native Application that uses Streamlit for its user interface. The application requires users to authenticate with their Snowflake credentials before accessing any dat a. The application also implements Role Based Access Control (RBAC) using application roles. After successful authentication, you need to securely determine the user's current role within the application and store it for subsequent authorization checks within Streamlit. Which of the following represents the most secure and reliable approach to achieve this?

A. After successful authentication using Snowflake credentials, configure the Streamlit application to execute 'SELECT CURRENT ROLE()' and immediately create temporary tables and views based on this role with session control. Let Snowflake control RBAC.
B. Fetch the user's Snowflake username using 'SELECT after successful authentication. Create a mapping table within the application that associates usernames with roles. Lookup the role based on the username from this table.
C. Execute 'SELECT after successful authentication and store the role name in a Streamlit session state variable Cst.session_state' ). Retrieve the role name from the session state for authorization checks.
D. Rely on Snowflake's built-in auditing features to implicitly track user access and role assignments. Avoid storing the role within the Streamlit application.
E. Use a custom authentication system that bypasses Snowflake's native authentication. Store user roles directly within the application's metadata. Use this system when you need more control over roles.

Answer: C

Explanation:
Option A is the most secure and reliable approach. Using 'SELECT after successful authentication ensures that you are retrieving the role that Snowflake has currently assigned to the user in that session. Storing it in allows you to reuse this information throughout the Streamlit application without repeatedly querying Snowflake, improving performance. Session state is also secure, as it's tied to the user's session. Option B is less secure because managing a separate mapping table introduces redundancy and potential inconsistencies with Snowflake's role management. It also adds complexity to user management. Option C should not be adopted. Bypassing Snowflake's native authentication significantly weakens the application's security posture. Snowflake provides robust authentication mechanisms, and there is generally no need to bypass them. Option D is insufficient as a standalone solution because it doesn't provide the application with real- time access to the user's role for authorization checks. Option E is complex and can create unnecessary overhead with temporary objects. It doesn't directly address the need to store and reuse the role for various authorization checks within the Streamlit application.

NEW QUESTION # 103
You are designing the 'privileges.sqr file for a Snowflake Native App. The app requires the ability to create and manage internal stages within the consumer's account to store temporary dat a. Which of the following SQL statements in 'privileges.sqr would correctly grant the necessary privileges to the application role (assuming the application role is named 'APP ROLE)?

Answer: D

Explanation:
To create stages, the application role needs the 'CREATE STAGE' privilege. This privilege needs to be granted on the schema where the stages will be created, and usage privilege is also needed. Granting it at the database level is too broad (B, C, E), and only granting warehouse usage (A) doesn't address the requirement of creating stages.

NEW QUESTION # 104
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