SnowPro Specialty - Native Apps cexamkiller Praxis Dumps & NAS-C01 Test Training Überprüfungen

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Snowflake NAS-C01 Exam Syllabus Topics:

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

>> NAS-C01 Fragen&Antworten <<

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Snowflake SnowPro Specialty - Native Apps NAS-C01 Prüfungsfragen mit Lösungen (Q174-Q179):

174. Frage
You are developing a Snowflake Native App that needs to access a secured external API to enrich customer dat a. The API requires an OAuth 2.0 token stored securely. Which of the following approaches would you use within the application manifest and Snowflake objects to securely store and access this token, minimizing exposure and adhering to best practices?

A. Hardcode the OAuth 2.0 token within the application's stored procedures. This ensures the token is readily available.
B. Store the OAuth 2.0 token directly in the application's manifest file as a PARAMETER. This simplifies access within the application code.
C. Store the OAuth 2.0 token as a masked comment within the application's SQL code. This will provide sufficient obfuscation.
D. Use Snowflake's SECRET object type to securely store the OAuth 2.0 token. Reference the SECRET object within the application using PARAMETERS in the manifest and utilize function in application code to retrieve it at runtime.
E. Store the OAuth 2.0 token as a cleartext secret in a Snowflake stage and access it using external functions.

Antwort: D

Begründung:
Storing secrets like OAuth tokens directly in the manifest or hardcoding them is a significant security risk. Using Snowflake SECRET objects is the recommended approach for securely managing sensitive information. The 'SYSTEM$GET SECRET function provides a secure way to retrieve the secret at runtime without exposing it in the code or manifest. Snowflake stages shouldn't be used to store secrets in clear text.

175. Frage
You are developing a Snowflake Native App that requires specific database privileges to be granted to the application role during installation. Which sections of the 'manifest.yml' file are primarily responsible for defining these required privileges, and how does Snowflake interpret and enforce them during the installation process?

A. The 'setup.script' section defines the privileges needed. The application setup code must explicitly grant these privileges using 'GRANT statements to a specific application role. Snowflake does not automatically grant any privileges, so you have full control over permission management.
B. The 'application.initial_version.artifacts' section is used to define the privileges. Snowflake parses this section to identify required privileges and grants them dynamically to the application role whenever a function or procedure is called that requires them.
C. A combination of the 'application.initial_version.privileges' and 'setup.script' sections. 'application.initial_version.privileges' defines initial static privileges, while 'setup.script' can grant additional privileges dynamically during installation if needed. Snowflake ensures that all specified privileges are granted before the application is fully operational.
D. The 'application.initial_version.privileges' section defines the privileges needed. Snowflake automatically grants these privileges to the application role defined in 'application.initial_version.role' before the setup script runs. This ensures the application has the necessary permissions to create objects and execute code within the consumer's account.
E. The 'application.initial_version.parameters' section. While parameters can control behavior, they do not define or manage privileges. Privileges must be manually configured by the consumer post-installation.

Antwort: C

Begründung:
The correct answer is D. The 'application.initial_version.privileges' section is used to define static privileges that the application role should have from the start. The 'setup.script' allows for more dynamic privilege granting, enabling the application to adjust permissions based on the consumer's environment or configuration. Snowflake ensures these privileges are in place to enable the application to function correctly.

176. Frage
You are developing a Snowflake Native Application and need to track changes made to the application code across different versions. You want to leverage Snowflake's built-in capabilities for version control and auditing. Which of the following approaches is the MOST suitable and efficient for achieving this?

A. Use Snowflake's Time Travel feature to query historical versions of application code objects (e.g., stored procedures, UDFs) and compare differences between versions.
B. Manually maintain a change log in a separate Snowflake table, documenting each code modification with associated version numbers and timestamps.
C. Utilize Snowflake's Information Schema views (e.g., 'INFORMATION_SCHEMA.PROCEDURES, 'INFORMATION SCHEMA.FUNCTIONS) in conjunction with Time Travel to query historical metadata and code definitions.
D. Use Snowflake's Streams feature to capture changes made to application code objects and store them in a separate change table for auditing.
E. Integrate with an external version control system (e.g., Git) and store application code and deployment scripts in the repository. Use CI/CD pipelines to manage deployments to Snowflake.

Antwort: C

Begründung:
Option E is the most suitable and efficient solution. Combining Snowflake's Information Schema views with Time Travel provides a comprehensive and native way to track changes to application code objects. The Information Schema provides metadata about database objects, and Time Travel allows you to query historical versions of those objects. This approach leverages Snowflake's built-in capabilities without requiring external tools or manual change logging. Options A and B requires extra configuration of the whole process. Option C while feasible, Time Travel has to be enabled on each component, which makes option E superior. Option D is designed for data and not code auditing.

177. Frage
A Snowflake Native App developer is designing the upgrade process for their application. They need to ensure that data stored in the application's managed tables is preserved during the upgrade and that the application remains functional throughout the upgrade process. Which of the following strategies should the developer implement to achieve these goals? (Select TWO)

A. Before upgrading, unload all data from the application's tables to cloud storage, and then reload the data into the new version after the upgrade is complete.
B. Design the application's data model to be backward-compatible, allowing the new version to read and write data in the format used by previous versions. Use 'ALTER TABLE to add new columns or modify existing ones without breaking existing functionality.
C. Use the 'DROP TABLE command with the 'CASCADE' option to remove all tables and views before deploying the new version of the application.
D. Utilize Snowflake's data sharing capabilities to create a read-only replica of the application's data for the new version to access during the upgrade.
E. Implement a versioning system for the application's metadata using the ' APPLICATION VERSION' construct, ensuring that the new version can handle data from previous versions.

Antwort: B,E

Begründung:
Option B correctly describes the use of 'APPLICATION VERSION' to manage metadata compatibility between versions. Option D correctly emphasizes designing for backward compatibility in the data model using 'ALTER TABLE for schema changes, which avoids data loss and ensures a smoother upgrade process.

178. Frage
A Snowflake Native App developer is creating an application that accesses a secured table 'CUSTOMER DATA' within the provider's account. The developer wants to grant the consumer read-only access to this table through the application, but only after the application is installed and the consumer has accepted the terms and conditions. Which of the following steps are necessary to achieve this goal? (Choose two)

A. Define a stored procedure within the application package that, upon execution in the consumer account (post-installation), executes a 'GRANT SELECT ON TABLE CUSTOMER_DATA TO APPLICATION ROLE app_role' statement. The application itself doesn't directly share the data; the procedure manages the access.
B. Define a manifest file within the application package that specifies the 'CUSTOMER DATA' table as a resource and declares the 'SELECT privilege required by the application. Snowflake automatically grants this privilege to the application's default role upon installation.
C. The provider creates a versioned schema in the listing and shares it with the consumer account. Once the consumer accepts the terms and conditions, the provider executes 'GRANT SELECT ON TABLE CUSTOMER_DATA TO APPLICATION ROLE app_role' within the consumer account using a secure UDF.
D. Create an outbound share within the application that shares the 'CUSTOMER DATA' table with a specific application role. Configure an activation hook that runs post-installation to grant the 'SELECT' privilege on the table to the application role using the 'GRANT' command.
E. Create a share from the provider account containing the 'CUSTOMER_DATA table and grant the consumer account access to this share using the Snowsight UI, specifically setting the ' READ ONLY' privilege on the table after the application is installed.

Antwort: A,D

Begründung:
Option B is correct because it leverages a stored procedure executed in the consumer account to grant the required privilege to the application role. This allows for conditional granting post-installation. Option D is also correct because it uses an outbound share and activation hook, which is a standard mechanism for granting access to objects in the provider account to application roles in the consumer account after the application is installed.

179. Frage
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