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Snowflake NAS-C01 Exam Syllabus Topics:

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

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최신 SnowPro Core Certification NAS-C01 무료샘플문제 (Q12-Q17):

질문 # 12
You are developing a Snowflake Native Application that interacts with a user-provided data source. The application needs to validate that the user has granted the necessary permissions on their dat a. The application package contains the following setup script:

Which of the following approaches is the MOST secure and reliable way to check for SELECT privileges within the procedure?

A. Use 'SHOW GRANTS TO ROLE app_role' and parse the output to see if SELECT privilege on 'user_schema.user_table' exists.
B. Assume SELECT privileges are granted as part of the application installation process without explicit validation.
C. Use function with appropriate parameters to directly check if the 'app_role' has SELECT privilege on 'user schema.user table'.
D. Query the 'INFORMATION SCHEMA.TABLE PRIVILEGES' view to check if 'app_role' has SELECT privilege on 'user_schema.user_table'.
E. Attempt a 'SELECT COUNT( ) FROM within a "TRY...CATCH' block and infer permissions based on the error message.

정답：C

설명：
'SYSTEM$PRIVILEGE_CHECK' is the recommended and most secure method. It directly checks for the existence of a specified privilege for a role on an object. Parsing the output of 'SHOW GRANTS' is less reliable and prone to errors. 'TRY...CATCH' is inefficient and relies on error message parsing, which is discouraged. provides metadata but not a definitive check in the context of the application role having the necessary grants made by the consumer. Assuming privileges are granted is a security risk.

질문 # 13
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. Consumers are automatically prompted to install any missing external packages upon installing the application; no specific action is required during listing creation.
D. Include a 'requirements.txt file within your application package listing all required Python packages and their versions.
E. Distribute the packages directly as part of the application code. This avoids external dependencies.

정답：A

설명：
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.

질문 # 14
You are developing a Snowflake Native Application that requires fine-grained control over data access for its users. You plan to use Streamlit within the application and leverage the Permissions API to manage these privileges. Assume you have successfully established a connection to Snowflake within your Streamlit app. Which of the following code snippets accurately demonstrate how to grant the 'SELECT privilege on a table named 'APP DATA in the application's schema to a specific role, 'APP USER, using the Permissions API, and then verify if that privilege has been granted?

정답：D

설명：
Option E is correct because it accurately grants the SELECT privilege and then uses the 'SHOW GRANTS TO ROLE' command to verify the privilege. It also includes a check to ensure the schema, table, and privilege all match the expected values, handling upper/lower case variations. Option A is similar, but has inconsistent index access in the SHOW GRANT results, and its check might be too strict by requiring the role to match. Option B incorrectly accesses the results of SHOW GRANTS, checking the wrong indices. Option C mentions a hypothetical PermissionsClient which is NOT available in Snowflake. The Permissions API does not have 'grant_select' or 'check_privilege' methods like that. Option D uses INFORMATION_SCHEMA which is less reliable in the context of Snowflake Native Applications. The table name case-sensitivity matters with INFORMATION SCHEMA. The Information Schema is dependent on the privileges of the session role.

질문 # 15
You are designing a Snowflake Native Application that performs sentiment analysis on customer reviews. The application needs to store intermediate results and provide aggregated sentiment scores to the consumer. You are considering using either temporary tables or regular tables within your application package. Which of the following considerations are most important when deciding between these two options?

A. Temporary tables are automatically dropped at the end of each session, ensuring that no sensitive data is persisted longer than necessary. This is crucial for maintaining data privacy and compliance.
B. Regular tables require specifying a data retention period, which adds complexity to the application's setup script and can potentially lead to data loss if not configured correctly.
C. Regular tables are persisted across sessions and can be queried by the consumer after the application has completed its processing. This allows the consumer to analyze the intermediate results and gain further insights.
D. Temporary tables are visible to all roles within the application package, simplifying data access and management for different components of the application.
E. The data retention period for regular tables can be used to implement data versioning and auditing within the application package.

정답：A,C,E

설명：
Options A, C, and E are correct. Temporary tables ensure data privacy by being session-bound. Regular tables allow consumers access to results and enable data versioning. Option B is incorrect because temporary tables are only available to the session that created them. Option D is partially correct, but the benefit of data versioning outweigh the cost of implementing retention period.

질문 # 16
You are building a Snowflake Native App that aggregates data across multiple consumer accounts. Your app needs to securely access data in each consumer's Snowflake account without requiring them to share their credentials directly. You are evaluating different options for secure data access. Which of the following strategies are viable and recommended to implement this, maximizing security and minimizing administrative overhead for the consumer?

A. Use Snowflake Data Clean Rooms to allow the app to query data from the consumers accounts.
B. Implement a data sharing agreement where consumers create a share from their account and grant usage to your application's account using secure data sharing. The application account can then create a database from this share.
C. Have consumers create and share a JWT (JSON Web Token) with your application. The JWT will be used to authenticate against their Snowflake instance via an external function.
D. Require consumers to grant SELECT privileges on their tables directly to the application's account. This necessitates the consumer to manage grants directly.
E. Utilize Snowflake's Native App data sharing capabilities where the provider app shares data products back to the consumer account and the consumer account can use this inside their apps.

정답：B,E

설명：
Granting SELECT directly (A) requires the consumer to manage grants directly, which is not ideal for scalability or security. Passing JWT tokens (D) is complex and requires careful management of keys. Snowflake Data Clean Rooms(B) are not the correct solution to get consumer data in Provider App.. Secure data sharing (C) is a viable and secure option, as it allows consumers to share data without exposing credentials. Snowflake's Native App sharing Data Products back to the consumer account (E) is the best option for secure data access.

질문 # 17
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