Snowflake NAS-C01考古题推薦 - NAS-C01熱門認證

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Snowflake NAS-C01 Exam Syllabus Topics:

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

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最新的 SnowPro Core Certification NAS-C01 免費考試真題 (Q93-Q98):

問題 #93
A developer is building a Snowflake Native App that requires secure storage of sensitive application configuration dat a. Which of the following Snowflake features is the MOST appropriate to use within the application package to manage and secure this data?

A. Snowflake Secrets, accessed via SQL commands and managed through object privileges.
B. Storing the data in a standard Snowflake table within the application package, relying on Snowflake's built-in encryption.
C. Snowflake Stored Procedures with 'CALLER rights, encrypting the data within the procedure.
D. Encrypting the data with a customer-managed key (CMK) stored outside of Snowflake and decrypting it within a UDF.
E. Using a Stage to store encrypted configuration files, accessible by the application using external functions.

答案：A

解題說明：
Snowflake Secrets are specifically designed for storing sensitive information like API keys and passwords within Snowflake. They provide a secure way to manage and access this data without exposing it directly in code. They leverage Snowflake's object privileges to control access.

問題 #94
You are designing a Snowflake Native Application that uses Snowpark Container Services to process dat a. The application needs to store intermediate results in a Snowflake table. You have the following requirements: 1. The table should only be accessible to the Native App. 2. The table schema should be automatically updated when the application is upgraded. 3. You want to minimize the privileges granted to the container service's service account. Which of the following approaches should you use? (Select TWO)

A. Create the table within the application's package using a setup script. Grant the 'USAGE privilege on the application's schema to the Native App's service account.
B. Create the table within the application's package using a setup script. The setup script should execute during the application installation and upgrade process.
C. Create the table manually in the consumer's account and grant 'USAGE' and 'SELECT privileges on the table to the Native App's service account.
D. Grant 'ALL PRIVILEGES on the database containing the table to the Native App's service account. This allows the application to manage the table and its schema.
E. Create a separate database for the Native App's internal data and grant the 'OWNERSHIP' privilege on this database to the Native App's service account.

答案：A,B

解題說明：
Option A grants excessive privileges. Option C requires manual intervention and doesn't guarantee schema updates on upgrade. Option E is also too permissive. Option B is correct because creating the table within the application's package ensures that it's automatically created and updated during installation and upgrade. Option D is correct because we only need to grant USAGE on the application's schema to allow the Native App's service account to access the objects within the application. This follows least privilege and makes schema updates possible.

問題 #95
You are managing a Snowflake Native Application that allows consumers to configure certain aspects of its behavior through a dedicated configuration table. The application logic relies on specific values within this table to function correctly. During a new version deployment, you need to ensure that existing consumer configurations are migrated to the new version's configuration table structure without disrupting the application's availability. Which of the following strategies would you use to perform a zero-downtime configuration migration?

A. Deploy the new application version with a feature flag that disables the configuration table dependency. Run a script in the background to migrate the data to the new table and then flip the feature flag to enable the new configuration.
B. Perform an in-place alteration of the existing configuration table to match the new schema. This might involve adding, dropping, or renaming columns. Update the application code to reflect these changes. If you need to rename tables, then use SALTER TABLE ... RENAME to minimize downtime.
C. Implement a parallel migration strategy. Create a new configuration table with the new schema alongside the existing one. Update the application code to read from both tables concurrently, prioritizing the new table if values are present. Schedule a background job to migrate data from the old table to the new table. Once the migration is complete and verified, switch the application to solely read from the new table and eventually drop the old one.
D. Rename the existing configuration table to a backup name. Create a new configuration table with the new schema. The application will start using the new empty table, and consumers can manually reconfigure their settings.
E. Drop the existing configuration table and recreate it with the new schema during the application upgrade process. The application will automatically adapt to the new schema once the upgrade is complete.

答案：B,C

解題說明：
Options B and D offer the best approaches for zero-downtime configuration migration. Option B enables the application to read from both the old and new schema during the migration period. Option D provides that the application changes the schema and adapts to the new version, with using 'ALTER TABLE ... RENAME TO to prevent downtime. Option A will cause downtime, since the application has to be upgraded and recreated. Option C will also cause downtime, where the new configuration is empty and needs to be reconfigured. Option E can be used for the actual deployment process, but its best utilized with Option B or D for optimal results.

問題 #96
You are designing a Snowflake Native App that includes a managed task. This managed task updates several tables in a secured schema within the consumer account. To comply with strict security requirements, you need to minimize the privileges granted to the application role while ensuring the managed task executes successfully. Which combination of privileges is absolutely necessary for the application role to successfully execute the managed task and update the tables in the secured schema, assuming the application role already has USAGE on the database and schema?

A. EXECUTE MANAGED TASK, SELECT, INSERT, UPDATE, DELETE on the tables.
B. EXECUTE MANAGED TASK, SELECT, INSERT, UPDATE, DELETE on the tables AND MODIFY on the schema.
C. EXECUTE MANAGED TASK, MODIFY on the secured schema.
D. EXECUTE MANAGED TASK, OWNERSHIP on the secured schema.
E. EXECUTE MANAGED TASK, OWNERSHIP on the tables.

答案：B

解題說明：
Option D represents the minimum necessary privileges. 'EXECUTE MANAGED TASK' allows the application to run the managed task. 'SELECT , 'INSERT, 'UPDATE', and 'DELETE are required to perform data manipulation operations on the tables. 'MODIFY on the schema allows the application to modify objects within the schema, which is required for updating tables. OWNERSHIP grants excessive privileges and is not required for simply updating data. MODIFY on the schema alone is insufficient without the data manipulation privileges on the table.

問題 #97
You've identified a critical security vulnerability in your Snowflake Native Application that requires immediate remediation. You need to release a patch, but you want to minimize the impact on consumers who are already using your application. Which of the following approaches is MOST suitable for deploying this patch? Select TWO that apply.

A. Create a new version of the application package with the patch applied, and immediately update the default version of the application package to the new version.
B. Leverage zero-downtime patching (if supported by Snowflake in future) by updating internal objects without requiring consumers to update or redeploy their installed application instances.
C. Issue an official announcement to all consumers that they need to uninstall and reinstall the application to receive the security fix.
D. Develop a SQL script containing the necessary fixes and provide it to consumers with instructions on how to apply it manually to their installed application instances.
E. Create a new version of the application package containing the patch. Ensure the new version addresses the vulnerability while maintaining backward compatibility with existing application interfaces and data formats, and then gradually roll out the new version to consumers using APPLICATION roles and grants.

答案：B,E

解題說明：
Options C and E are the most suitable. Option C prioritizes security while minimizing disruption by maintaining backward compatibility and rolling out the patch gradually. Consumers can update at their own pace without breaking existing workflows. Option E (if it were a feature) is optimal for security patching as it does not require any end-user action at all. Option A immediately updating default version could disrupt those not prepared for change. Option B places a burden on the consumer and opens the door for manual errors. Option D is disruptive and inconvenient for consumers.

問題 #98
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