NAS-C01 Prüfungsaufgaben - NAS-C01 Pruefungssimulationen

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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Installation, Testing and Troubleshooting	20%	- Validation and debugging 1. Logging and event tables 2. Tracing and troubleshooting workflows
Native Application Design and Creation	35%	- Application development workflow 1. Building and versioning applications 2. Application roles and privileges
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. Marketplace listings and publishing 2. Version upgrades and release management

>> NAS-C01 Prüfungsaufgaben <<

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Snowflake SnowPro Specialty - Native Apps NAS-C01 Prüfungsfragen mit Lösungen (Q166-Q171):

166. Frage
A Snowflake Native App developer is creating an application that needs to access data from multiple tables within a provider account. The developer wants to ensure the principle of least privilege and minimize the surface area for potential security vulnerabilities. Which approach is the MOST secure and efficient for granting the necessary privileges to the application?

A. Grant the USAGE privilege on all relevant databases and schemas, and the 'SELECT privilege on only the tables required by the application to the application role.
B. Grant the 'ALL PRIVILEGES privilege on all relevant tables to the application role. This provides the application with all possible privileges, simplifying privilege management.
C. Create a custom role in the provider account, grant the required privileges on the tables to this role, and then grant the 'USAGE privilege on this custom role to the application role.
D. Grant the 'SELECT privilege on all tables in the provider account to the application role.
E. Grant the 'OWNERSHIP privilege on all relevant databases to the application role. This provides the application with full control over the data, ensuring it can perform any necessary operations.

Antwort: A

Begründung:
Option B is the MOST secure and efficient. Granting 'USAGE' on databases and schemas allows the application to access these containers, while granting 'SELECT only on the necessary tables adheres to the principle of least privilege, minimizing potential security risks. Options A, C, and E grant overly broad privileges, which is not a secure practice. Option D, while seemingly applying least privilege, creates unnecessary role complexity and doesn't directly link the application role to the required object privileges.

167. Frage
A Native Application provider has created a database named 'app_db' using 'CREATE DATABASE app_db WITH MANAGED ACCESS;'. They now need to create a secure view that exposes a subset of data from an underlying table 'sensitive_data' within the schema 'internal_schema' of 'app_db' to a consumer's role named 'consumer role'. They wish to minimize data exposure while adhering to managed access principles. Which set of SQL statements represents the MOST secure and correct approach?

A. CREATE OR REPLACE SECURE VIEW app_db.internal_schema.consumer_view AS SELECT coll , c012 FROM app_db.internal_schema.sensitive_data; GRANT SELECT ON VIEW TO ROLE consumer_role; REVOKE ALL PRIVILEGES ON VIEW app_db.internal_schema.consumer_view FROM ROLE PUBLIC;
B. CREATE OR REPLACE VIEW app_db.internal_schema.consumer_view AS SELECT coll , c012 FROM app_db.internal_schema.sensitive_data; GRANT ALL PRIVILEGES ON VIEW TO ROLE consumer_role;
C. CREATE VIEW app_db.internal_schema.consumer_view AS SELECT coll , c012 FROM app_db.internal_schema.sensitive_data; GRANT SELECT ON VIEW app_db.internal_schema.consumer_view TO ROLE consumer_role;
D. CREATE OR REPLACE SECURE VIEW app_db.internal_schema.consumer_view AS SELECT coll , c012 FROM app_db.internal_schema.sensitive_data; GRANT ALL PRIVILEGES ON VIEW TO ROLE consumer_role;
E. CREATE OR REPLACE SECURE VIEW app_db.internal_schema.consumer_view AS SELECT coll , c012 FROM app_db.internal_schema.sensitive_data; GRANT SELECT ON VIEW TO ROLE consumer_role;

Antwort: E

Begründung:
Creating a 'SECURE VIEW is essential. A secure view hides the underlying data and implementation details from the consumer. The 'OR REPLACE clause ensures idempotency. Granting only 'SELECT is the principle of least privilege. Secure views ensure data security and integrity while working within the constraints of MANAGED ACCESS. Option A, missing the SECURE keyword, doesn't hide the underlying data. C and D have grant all, which goes against least privilege. E, while attempting to add more security with REVOKE ALL, is unnecessary given the 'WITH MANAGED ACCESS property. B is the most secure and appropriate solution.

168. Frage
You are packaging a Snowflake Native App and need to ensure that consumer accounts can only access specific data views you've created within your application schem a. You want to prevent consumers from directly querying the underlying tables. Which of the following security measures, when implemented together, BEST achieve this objective? (Choose two)

A. Grant 'SELECT' privilege on the underlying tables to the 'application role' within the application package.
B. Grant "OWNERSHIP' on the views to the 'application role' within the application package.
C. Use secure views to expose data, ensuring data access is controlled through the view's definition.
D. Grant 'SELECT privilege only on the views to the 'application role' within the application package.
E. Do not grant any privileges on the underlying tables to the 'application role' within the application package.

Antwort: C,D

Begründung:
The combination of granting ' SELECT only on the views (Option B) and using secure views (Option E) provides the strongest data security. Granting select on the views allows consumers to see the data you want them to see. Secure views prevent consumers from circumventing the view definition to access underlying tables, even if they had theoretical privileges (which they shouldn't). Not granting any privileges on tables(C) is correct in conjunction with (B&E), but on its own consumers will not see any data as they can't select from any object. Giving application role ownership to View(D) is not necessary to give consumer access to view the data.

169. Frage
You are developing a Snowflake Native Application designed to audit user activity within a consumer's Snowflake account. Your application needs to store audit logs persistently and efficiently. You anticipate high write volumes and require the ability to query these logs effectively for compliance purposes. Which of the following strategies is the MOST appropriate for storing and managing audit logs within your native application?

A. Store audit logs directly in a Snowflake table, leveraging clustering keys and partitioning for efficient querying and maintenance.
B. Store audit logs in an external stage, leveraging cloud storage. Implement periodic data loading from the stage into a Snowflake table for querying.
C. Write audit logs to a Snowflake queue. Configure a Snowpipe to load the data continuously into a Snowflake table.
D. Store audit logs as JSON files in a variant column within a Snowflake table.
E. Send audit logs to a third-party logging service via external functions. Maintain a summary table within Snowflake containing aggregated audit data.

Antwort: A

Begründung:
Storing audit logs directly in a Snowflake table, leveraging clustering keys and partitioning, is the most efficient and manageable solution for high write volumes and efficient querying. Clustering keys optimize query performance based on frequently used filter criteria, while partitioning improves data pruning and maintenance operations. Options A introduces complexity with external stages and data loading. Option C utilizes Snowpipe and queues, which while viable, adds more moving pieces without significant benefit over direct table insertion, especially when proper optimization is applied (clustering, partitioning). Option D suffers performance issues with large JSON files, and Option E adds external dependency. Therefore, storing logs directly in a well-designed Snowflake table is the most efficient and suitable choice.

170. Frage
You are developing a Native App on Snowflake that needs to interact with an external REST API. To ensure proper security, you want to store the API key securely within the application package and use it for authentication. Which of the following is the MOST secure and RECOMMENDED method to accomplish this?

A. Store the API key in a table within the application database with minimal access control, relying on Snowflake's data encryption at rest.
B. Hardcode the API key directly into the application code within a UDF (User-Defined Function).
C. Store the API key as a secret using Snowflake's Secret Management feature and reference it within a secure UDE
D. Store the API key in a secure stage with encryption and grant SELECT privilege to the application role.
E. Create a key-pair stored procedure. Storing the API key as a secret, then decrypting the key during each API call.

Antwort: C

Begründung:
Snowflake's Secret Management offers the most secure way to store and manage sensitive information like API keys. It allows you to store secrets securely and reference them within UDFs, preventing direct exposure. Options A, B and D introduce security risks by storing the API key in less secure ways or directly in code. Option E introduces unnessary complexity.

171. Frage
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