NAS-C01題庫分享 & NAS-C01考試資料

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Snowflake NAS-C01 Exam Syllabus Topics:

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

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NAS-C01考試資料 & NAS-C01考試重點

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最新的 SnowPro Core Certification NAS-C01 免費考試真題 (Q318-Q323):

問題 #318
You are building a Snowflake Native Application that needs to store configuration data within the application package. This configuration data needs to be accessible by all components of the application, but should not be directly exposed to the consumer. What is the RECOMMENDED approach to securely store and access this configuration data?

A. Store the configuration data in a JSON file within a stage in the provider account and grant the application role USAGE privilege to the stage.
B. Encrypt the configuration data and store it in a named internal stage within the application package. Create a UDF within the application to decrypt and retrieve the data when needed.
C. Store the configuration in a file within the application package and load it into a temporary table during application initialization. Only grant access to the application role.
D. Store the configuration data as environment variables within the application's setup script.
E. Store the configuration data in a dedicated table within the application database and grant SELECT privilege only to the application role.

答案：B

解題說明：
Encrypting the configuration data and storing it in a named internal stage (Option D) provides the highest level of security. The encryption ensures that the data is protected even if the application package is compromised. The UDF allows controlled access to the decrypted data within the application, preventing direct exposure to the consumer. Option A exposes data outside of the application, option B provides more access then needed. Options C and E are not appropriate. Option C is volatile, option E stores data outside of the install package.

問題 #319
A provider is developing a Snowflake Native Application that uses a managed task to perform critical data transformations. The provider wants to ensure the managed task is only ever executed when the application is in a 'RUNNING' state. They have defined a secure view which returns a single row and a column named 'status' of type VARCHAR. The provider intends to use the 'EXECUTE MANAGED TASK' privilege in conjunction with a user-defined function (UDF) to control task execution. Which of the following approaches, utilizing a UDF and the 'EXECUTE MANAGED TASK' privilege, will correctly and securely prevent the managed task from running unless the application status is 'RUNNING'? Assume the UDF is created with the 'SECURE keyword.

A. Create a UDF that returns TRUE only if 'SELECT status FROM app_db.app_schema.app_status_view' returns 'RUNNING'. Then, in the managed task definition, use the WHEN clause with the UDF. Grant 'EXECUTE MANAGED TASK' on the managed task to the application role. Do not grant SELECT on the view.
B. Create a UDF that executes ' if 'SELECT status FROM app_db.app_schema.app_status_view' returns 'RUNNING'. Grant 'EXECUTE MANAGED TASK' on the managed task to the application role. Grant SELECT on the view.
C. Create a UDF that returns TRUE only if 'SELECT status FROM app_db.app_schema.app_status_view' returns 'RUNNING'. Then, in the managed task definition, use the WHEN clause with the UDF. Grant 'EXECUTE MANAGED TASK' on the managed task and 'SELECT on the to the application role.
D. create a UDF that executes if 'SELECT status FROM app_db.app_schema.app_status_view' does not return 'RUNNING'. Grant 'EXECUTE MANAGED TASK' on the managed task to the application role. Do not grant SELECT on the view.
E. Create a UDF that executes 'SYSTEM$TASK SUSPEND('app_db.app_schema.my_managed_task'Y if 'SELECT status FROM app_db.app_schema.app_status_view' does not return 'RUNNING', otherwise executes Grant 'EXECUTE MANAGED TASK' on the managed task to the application role. Grant 'SELECT on the view.

答案：A

解題說明：
Option C is the most secure and correct approach. By using a UDF within the 'WHEN' clause of the managed task definition, the execution of the task is conditionally dependent on the output of the UDF, which in turn checks the application status view. Crucially, it avoids granting direct SELECT access to the consumer for the status view, preserving application data security. SYSTEM$TASK_SUSPEND/RESUME should be used as the last resource, if other things are failing. Option A incorrectly grants select access to the consumer. Options B, D and E attempt to directly manipulate the task state, this not secure and reliable. The correct solution is to use a UDF with the 'WHEN' clause to achieve conditional task execution without granting unnecessary privileges.

問題 #320
You are developing a Snowflake Native Application that uses a UDF (User-Defined Function) to process dat a. The UDF needs to be updated with new logic to handle a specific edge case. You want to ensure a smooth transition for existing consumers of your application. Which of the following strategies should you consider to avoid breaking changes? (Select TWO)

A. Implement versioning within the existing UDF to handle the new logic based on a version parameter passed by the consumer.
B. Remove the existing UDF and provide instructions for consumers to recreate it with the new logic.
C. Modify the existing UDF in place and notify consumers about the change after deployment.
D. Package new version and then call patch method.
E. Create a new UDF with a different name, implement the new logic, and update the application to use the new UDF, while keeping the old UDF for backward compatibility.

答案：A,E

解題說明：
Options B and C provide strategies to avoid breaking changes. Creating a new UDF (B) allows existing consumers to continue using the old UDF while new consumers can use the updated one. Implementing versioning within the existing UDF (C) allows the UDF to behave differently based on the version parameter, providing backward compatibility. A and D are disruptive, and E is vague and unspecific.

問題 #321
You are developing a Snowflake Native App that requires specific Snowflake features and functionalities. To ensure compatibility and proper execution across different consumer environments, you need to define the minimum required Snowflake version. Which section in the manifest file is used to specify the minimum Snowflake version required by the application and what is the correct syntax?

A. The 'configuration' section. Syntax: '"configuration": {"required_snowflake_version": "7.0"}'
B. The 'setup' section. Syntax:
C. The 'dependencies' section. Syntax: '"dependencies": [{"snowflake_version":">=7.0"}]
D. The 'application' section. Syntax: '"application": {"min_snowflake_version": "7.0"}'
E. The 'api_version' section. Syntax: '"api_version": along with in the 'applications section.

答案：D

解題說明：
The 'application' section within manifest file is used to specify minimum snowflake version required by Snowflake Native Application with the syntax '"application": {"min_snowflake_version": "7.0"}'. This attribute ensures that app installed is compatible with consumer account.

問題 #322
You've built a Snowflake Native Application that processes data and exposes a set of stored procedures to the consumer. You're implementing a CI/CD pipeline using GitLab CI/CD for deploying updates. Your pipeline includes the following stages: linting, unit testing, integration testing, and deployment to a staging environment. During the integration testing stage, you want to verify that the exposed stored procedures function correctly against a representative dataset. What is the MOST effective approach for performing these integration tests?

A. Execute the stored procedures directly from the GitLab CIICD runner using a Snowflake connection established with hardcoded credentials in the CI/CD configuration.
B. Use the application's setup script to automatically create a test database populated with sample data when the application is installed. Integration tests can then run queries in this database to ensure the application functions correctly.
C. Provision a dedicated Snowflake testing account with a representative dataset. Install the application version in this account and execute the stored procedures from within the account using Snowflake's SQL API or a Snowpark Python test framework.
D. Mock the Snowflake environment entirely within the GitLab CI/CD runner and execute the stored procedures against the mock environment. This eliminates the need for a live Snowflake connection during testing.
E. Create a separate set of stored procedures within the application package specifically for testing purposes. These procedures should mimic the functionality of the production stored procedures and assert their behavior.

答案：C

解題說明：
Option C is the MOST effective. It closely simulates the production environment by installing the application in a dedicated testing account with a representative dataset. This allows for realistic integration tests that verify the stored procedures' functionality. Option A is insecure due to hardcoded credentials. Option B is redundant and might not accurately reflect the behavior of the production stored procedures. Option D is difficult to implement accurately and might not catch all potential issues. Option E, while helpful for initial testing, doesn't provide the same level of confidence as testing against a fully installed application in a dedicated account.

問題 #323
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