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Snowflake NAS-C01 Exam Syllabus Topics:

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

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q97-Q102):

NEW QUESTION # 97
A Snowflake Native App includes a managed task 'app_db.app_schema.daily_data_processing'. You, as the application provider, need to ensure that consumer accounts can only execute this managed task and have no other privileges. You also need to implement robust error handling to log any failed execution attempts within the consumer account. Which of the following SQL statements, when executed within the application's installation script, provides the most secure and complete solution to achieve these requirements, including error logging within the consumer account (assuming an existing table exists)?

A.
B. GRANT EXECUTE MANAGED TASK ON MANAGED TASK TO APPLICATION ROLE app_public WITH GRANT OPTION;
C.
D.
E. GRANT EXECUTE MANAGED TASK ON MANAGED TASK TO APPLICATION ROLE app_public;

Answer: C

Explanation:
Option C is the most comprehensive. It grants the necessary USAGE privileges on the database and schema, which are prerequisites for the consumer account's application role to access the managed task. It also includes robust error handling using a BEGIN...EXCEPTION block, logging any errors encountered during the privilege granting process to the 'execution_log' table. Options A and D are missing the necessary USAGE privileges, which would prevent the task from executing. Option B lacks USAGE grants and only handles errors within the GRANT execution itself, not potential issues with missing database/schema access for the role. Option E includes 'WITH GRANT OPTION' , which is unnecessary and potentially insecure as it allows the consumer to further grant the EXECUTE MANAGED TASK privilege.

NEW QUESTION # 98
You are developing a Snowflake Native Application that uses Streamlit to provide a user interface for data analysts. The application accesses sensitive customer data residing in a managed database. To enhance security, you want to implement row-level security (RLS) based on the user's role. You have the following Streamlit code snippet:

Which of the following actions should you take to implement RLS in the Snowflake Native App, ensuring only authorized users can view specific rows of 'customer_data'? Assume the already contains necessary credentials. Choose the most secure and efficient method.

A. Modify the SQL query within the 'get_data' function to include a 'WHERE clause that filters data based on the current Streamlit user's username obtained using 'st.session_state.user.username' .
B. Implement a custom Python decorator that checks user roles before executing the 'get_data' function. Raise an exception if the user lacks the necessary role.
C. Create a secure view in Snowflake that implements RLS based on the role of the user executing the query. Grant the Streamlit user access to this view instead of the base table, and modify the 'get_data' function to query the view.
D. Implement RLS directly within the Streamlit application by filtering the 'data' DataFrame based on the user's role before displaying it using 'st.dataframe'. Store user roles in a separate table and fetch them using a different database connection.
E. Use Snowflake's masking policies combined with a secure view. The masking policy reveals data based on the user's role. Grant the Streamlit application's role access to the secure view.

Answer: E

Explanation:
Using Snowflake's masking policies and secure views is the most secure and efficient method. It centralizes RLS within Snowflake, leveraging its security features. Option A is vulnerable to SQL injection if 'st.session_state.user.username' is not properly sanitized. Option B is better, but masking policies provide more granular control and data obfuscation. Option C pushes security logic to the application layer, which is less secure. Option E adds unnecessary complexity and overhead.

NEW QUESTION # 99
You are designing a Snowflake Native App that needs to store temporary state information specific to each consumer account. This state information should not be directly accessible to the consumer but must be persistent across application sessions. Which of the following approaches are valid and recommended for storing this data?

A. Create a public schema in the application package and store the state information in tables within that schema. Grant SELECT access to the consumer's account on these tables.
B. Utilize internal stages within the application package to store the state data as files.
C. Use external stages connected to a provider controlled AWS S3 bucket or similar.
D. Create secured views that expose the state data but control access through application roles.
E. Store the state information in a private schema within the application package, ensuring that consumers do not have direct access.

Answer: B,E

Explanation:
Options B and D are the correct approaches. Option D: Private schema, Consumers should not have direct access to the app's internal data. Storing state information in a private schema within the application package ensures that consumers cannot directly query or modify this data, preserving the application's internal state and security. Option B: Internal Stages, offer a way to store file-based data that is tightly coupled with the application package. It enables you to persist the state information for each consumer securely. Option A is incorrect as it gives consumers direct access. Option C is incorrect because the requirement says the data cannot be accessible, not that it should be controlled. Option E creates dependency on external infrastructure.

NEW QUESTION # 100
A Snowflake Native Application provider is troubleshooting an issue reported by a consumer during testing. The application uses a UDF to process dat a. The error message suggests the UDF is failing due to insufficient permissions to access a secure view owned by the application. The UDF and view are defined as follows:

Which of the following steps are MOST likely to resolve the permission issue without compromising security principles?

A. Grant the ' SELECT privilege on 'app_db.app_schema.secure_view' to the consumer's account.
B. Grant the 'IMPORTED PRIVILEGES privilege on the application database to the application's 'app_role' .
C. No further action is required. Secure views and UDFs automatically inherit the necessary privileges within the application container.
D. Ensure the UDF is declared as 'SECURE and the view is also declared as 'SECURES. No explicit grants are required.
E. Grant the ' SELECT' privilege directly on 'app_db.app_schema.internal_table' to the 'app_role' .

Answer: D

Explanation:
Option B is the correct answer. When both the UDF and the view are declared as 'SECURE, Snowflake handles the privilege inheritance automatically within the application container. No explicit grants are required, and the application maintains its security posture. Option A is incorrect because granting access directly to internal tables violates the principle of least privilege and exposes underlying data structures. Option C is incorrect as the view is for internal use, not direct access. Option D is incorrect. 'IMPORTED PRIVILEGES are used for sharing data outside of the application container, not for access within the application. Option E is partially correct, but incomplete. Both need to be declared as 'SECURE.

NEW QUESTION # 101
A Snowflake Native App installed in a consumer account needs to access data in a specific table within the consumer's account to perform its core functionality. Which of the following is the MOST secure and recommended way for the application to gain access to this data? (Assume the application developer does not have direct access to the consumer's Snowflake account.)

A. The consumer shares the table directly with the application provider's Snowflake account.
B. The application provider requests the 'IMPORTED PRIVILEGES on the consumer account, allowing the application to access any object within the account.
C. The consumer grants the "GLOBAL' privilege 'SELECT on the table directly to the application package name.
D. The application prompts the consumer for their Snowflake account credentials and uses those credentials to access the data.
E. The consumer creates a secure view on top of the table and grants 'SELECT privilege on the secure view to the application's installed application object (application instance).

Answer: E

Explanation:
The MOST secure approach is to create a secure view on top of the table and grant 'SELECT privilege on the secure view to the installed application. This limits the application's access to only the data exposed by the view, minimizing the potential security risk. Granting access directly to the application package (option A) is not supported. Requesting 'IMPORTED PRIVILEGES (option B) is too broad and insecure. Sharing the table with the provider (option D) is not necessary and adds complexity. Asking for credentials (option E) is a major security violation. Secure Views prevent direct access to underlying tables while still allowing applications to function as intended.

NEW QUESTION # 102
......

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