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Snowflake NAS-C01 Exam Syllabus Topics:

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

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q58-Q63):

NEW QUESTION # 58
You are developing a Snowflake Native App that requires specific privileges to be granted to the consumer account. These privileges are necessary for the app to access and process data within the consumer's Snowflake environment. Which section of the manifest file is primarily used to declare these required consumer-side privileges?

Answer: D

Explanation:
The application.privileges section in the manifest file is specifically designed to declare the privileges required by the Native App in application . privileges the consumer's account. This ensures that the app has the necessary permissions to function correctly within the consumer's Snowflake environment. The other options are related to different aspects of the app's behavior, resources, and setup but not the declaration of required privileges.

NEW QUESTION # 59
You are developing a Snowflake Native Application that processes customer dat a. To comply with data residency requirements, you need to ensure the application processes data within the customer's Snowflake account. The application logic resides in a Snowpark Python stored procedure. During development, you test this procedure using the 'CALL' command. However, after installing the application in a customer's account, the procedure fails with a 'privilege insufficient' error. What are the MOST likely reasons for this and how can you rectify them within the package definition?

A. The procedure owner is not the application. This can be resolved by transferring ownership to the application role using 'ALTER PROCEDURE (...) OWNER TO APPLICATION ROLE in the setup script.
B. The application manifest is missing the 'external_network_accesS property set to 'true'. Add this to the manifest and use network rules if the application requires access to external resources.
C. The application role lacks sufficient privileges on the data sources within the customer's account. Grant the appropriate privileges (e.g., 'SELECT , 'INSERT) on the required tables/views to the application role in the setup script using 'GRANT SELECT ON TABLE TO APPLICATION ROLE
D. The stored procedure is missing the EXECUTE MANAGED ACCOUNT privilege. Add 'GRANT EXECUTE MANAGED ACCOUNT ON PROCEDURE TO APPLICATION ROLE to the setup script.
E. The stored procedure requires the 'IMPORTED PRIVILEGES on the database. Grant this using 'GRANT IMPORTED PRIVILEGES ON DATABASE TO APPLICATION ROLE in the setup script.

Answer: C,D

Explanation:
When a Snowflake Native Application runs in a customer's account, it operates under the security context of an application role defined within the application package. The 'privilege insufficient error suggests the application role lacks the necessary permissions to execute the stored procedure or access underlying data. Option A correctly identifies the need for the EXECUTE MANAGED ACCOUNT privilege for stored procedures. Option B highlights the importance of granting specific data access privileges to the application role on the customer's data sources. Option C is incorrect because the procedure owner doesn't need to be changed for correct application working. Option D pertains to access to external networks, not internal privileges. Option E is incorrect because imported privileges are not required to execute stored procedure.

NEW QUESTION # 60
A Native Application provider is developing an application that relies on data residing in a shared database, 'EXTERNAL DATA'. They want to ensure that their application role 'app_role' only has access to specific tables and views within 'EXTERNAL DATA', and they also want to minimize the need for future privilege grants as new tables are added to 'EXTERNAL DATA. Which combination of SQL statements below achieves these goals with the principle of least privilege in mind? Assume all tables are in the PUBLIC schema.

Answer: D

Explanation:
The correct answer is C. First, IMPORTED PRIVILEGES is required so that the Native App can see the database. Next, GRANT SELECT ON FUTURE TABLES IN SCHEMA EXTERNAL DATA.PUBLIC limits the scope of future grants only to the PUBLIC schema. The other options do not provide future grants scoped to the Public schema, or they grant ALL access. Options B and D require that the database USAGE privilege be explicitly granted in addition to IMPORTED PRIVILEGES, which are granted automatically when a database is shared. Option E is incorrect because 'ALL TABLES does not cover tables that will be created in the future.

NEW QUESTION # 61
You are the provider of a Snowflake Native Application. After releasing version '1.0' of your application, a security vulnerability is discovered. You quickly develop a fix in version '1.1 What steps should you take to ensure that all consumer accounts are promptly and securely upgraded to the fixed version, minimizing disruption to their operations and ensuring their data security?

A. Use the 'ALTER APPLICATION PACKAGE ... SET DEFAULT VERSION = '1.1" command. This will automatically upgrade all existing installations to the new version during their next scheduled refresh.
B. Immediately revoke 'USAGE privileges on version '1 .C for all consumer accounts, forcing them to contact you for an upgrade to '1.1'. Provide upgrade instructions in the application's documentation.
C. Announce the security vulnerability and the availability of version '1.1 through the Snowflake Marketplace. Rely on consumer accounts to self-upgrade based on their awareness and urgency.
D. Grant 'USAGE' privilege to all consumer accounts on version '1.1 Monitor consumer adoption of the newer version, and after a reasonable period, revoke 'USAGE on version '1.0'. Communicating the importance of upgrading.
E. Contact Snowflake Support to request a forced upgrade of all consumer accounts to version ' 1.1 due to the security vulnerability.

Answer: D

Explanation:
Option E is the best approach. Granting USAGE privilege to the new version allows consumers to seamlessly transition. After monitoring and a communication period, revoking USAGE on the old version ensures complete adoption without abruptly disrupting operations. Option A is too disruptive. Option B relies on consumer awareness which is unreliable. Option C affects only the new installations. Option D is not a standard procedure and unlikely to be supported by Snowflake in most scenarios.

NEW QUESTION # 62
You are developing a Snowflake Native Application that manages customer dat a. You need to ensure that updates to customer records are idempotent. Your application uses a stored procedure 'update_customer(customer_id INT, new_email VARCHAR)' to update customer emails. How can you modify this procedure to guarantee idempotency, assuming that customer data changes are tracked with a 'last_updated' column of type TIMESTAMP NTZ?

A. Enclose the entire stored procedure within a 'TRY...CATCH' block and retry if any exception occurs.
B. Add a 'COMMIT statement at the end of the stored procedure to ensure all changes are persisted immediately.
C. Use ' MERGE statement, comparing the new email with the existing email and updating only if they are different, while also ensuring that the update only happens if the new ' last_updated' timestamp is later than the stored one.
D. Create a separate table to store only the changes to customer emails and query this table to determine the latest email.
E. Implement optimistic locking using a version number for each customer record and checking the version before updating.

Answer: C

Explanation:
Option C leverages the 'MERGES statement for idempotent updates. By comparing the existing and new email and only updating if different, and comparing the Alast_updated' timestamp, it prevents redundant updates if the procedure is called multiple times with the same input. Optimistic locking (A) is a valid concurrency control mechanism but doesn't directly guarantee idempotency in this scenario. 'COMMIT (B) affects transaction behavior, not idempotency. Creating a separate table (D) adds complexity but doesn't inherently ensure idempotency of the update_customer' procedure itself. 'TRY...CATCH& (E) provides error handling but doesn't address idempotency.

NEW QUESTION # 63
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