NAS-C01 Prüfungsaufgaben, NAS-C01 Praxisprüfung

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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Installation, Testing and Troubleshooting	20%	- Validation and debugging 1. Tracing and troubleshooting workflows 2. Logging and event tables
Topic 2: Snowflake Native App Framework Overview	20%	- Native application concepts and architecture 1. Manifest files and setup scripts 2. Application packages and structure
Topic 3: Deployment and Marketplace Publishing	25%	- Distribution and lifecycle management 1. Marketplace listings and publishing 2. Version upgrades and release management
Topic 4: Native Application Design and Creation	35%	- Application development workflow 1. Building and versioning applications 2. Application roles and privileges

>> NAS-C01 Prüfungsaufgaben <<

Snowflake NAS-C01 Praxisprüfung - NAS-C01 Dumps Deutsch

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Snowflake SnowPro Specialty - Native Apps NAS-C01 Prüfungsfragen mit Lösungen (Q267-Q272):

267. Frage
Your Snowflake Native App's setup script needs to create a new schema and grant specific privileges to a custom role defined within the application. However, the setup script is failing with an error related to insufficient privileges. You've verified that the application role has the OWNERSHIP privilege on the application package. What is the MOST likely cause of this issue and how can it be resolved?

A. The application role lacks the CREATE SCHEMA privilege on the database. Grant the CREATE SCHEMA privilege on the database to the application role using 'GRANT CREATE SCHEMA ON DATABASE TO APPLICATION ROLE
B. The setup script must explicitly activate the application role before creating the schema. Add the following line to the setup script: 'USE ROLE
C. Setup scripts cannot create schemas, as schemas are automatically provisioned. Only tables, views and other objects can be created by the script.
D. The application role needs the USAGE privilege on the database. Grant USAGE on the database to the application role using 'GRANT USAGE ON DATABASE TO APPLICATION ROLE
E. The setup script is attempting to create a schema with the same name as an existing schema in the consumer account. Ensure the schema name is unique within the consumer account.

Antwort: A,B

Begründung:
The application role needs the CREATE SCHEMA privilege on the database to create new schemas (A). Additionally, the setup script must activate the application role before executing any commands that require that role's privileges (D). Schema creation is allowed by setup scripts. USAGE privilege and schema uniqueness issues are less relevant if CREATE SCHEMA is missing and the role is not activated within the setup script.

268. Frage
You are developing a Snowflake Native App that needs to perform asynchronous tasks in the consumer's account. Which of the following approaches is the MOST suitable and secure way to achieve this, ensuring minimal impact on the consumer's resources and maintaining data integrity?

A. Implement a scheduled stored procedure that polls for new tasks every minute and processes them, potentially consuming significant compute resources in the consumer's account. The stored procedure is deployed in the consumer's account using CREATE APPLICATION.
B. Implement a Snowpark UDF that starts a new thread to handle the asynchronous task within the consumer's compute environment.
C. The Native App can create task and warehouse in the consumer account to execute the code using CREATE APPLICATION command. The application uses SNOWFLAKE.CORE.AUTHZ.PASS PRIVILEGES() to execute these tasks.
D. Utilize an external message queue (e.g., AWS SQS, Azure Queue Storage) to offload asynchronous tasks, requiring the consumer to configure network policies to allow egress traffic to the queue.
E. Create a Snowflake Task that is executed within the consumer's account, triggered by events within the application, and configured to run on a Snowflake-managed compute pool.

Antwort: E

Begründung:
Using Snowflake Tasks (Option A) is the recommended approach for asynchronous task execution within a Snowflake Native App. The task is managed within the consumer's account but still deployed as part of app package, avoiding the need for external dependencies or extensive consumer configuration. Option B introduces complexity and security concerns with external message queues. Option C can be resource-intensive and inefficient. Option D is incorrect as apps are not allowed to create warehouses. Option E is not supported, UDFs do not run in separate threads.

269. Frage
You are designing a Streamlit application within a Snowflake Native App package. This application displays data from a customer's Snowflake account. The application needs to enforce strict data governance policies, ensuring that users only see the data they are authorized to view based on their roles and permissions within the customer's account. Which strategies and Snowflake features should be employed to achieve this?

A. Use Snowflake's masking policies to redact sensitive data based on the user's role and context at the database level.
B. Leverage Snowflake's row access policies to automatically filter data based on the user's role and context at the database level.
C. Create separate Streamlit applications for each user role, each with its own data access configuration.
D. Use external tables to fetch the data.
E. Implement row-level security policies directly within the Streamlit application using Python code to filter the data.

Antwort: A,B

Begründung:
Row access policies (B) are the recommended approach for implementing row-level security in Snowflake, as they are applied at the database level and ensure consistent enforcement regardless of the application accessing the data. Masking policies (D) are crucial for redacting sensitive information based on user roles. Implementing data filtering within the Streamlit application (A) is less secure and harder to maintain. Creating separate applications for each role (C) is inefficient and not scalable. External tables are for accessing data outside of Snowflake not controlling access to existing data.

270. Frage
You are setting up an external stage to host your Snowflake Native Application Package on AWS S3. You've created an IAM role and Snowflake integration. However, when you try to create the application package with 'EXTERNAL STAGE , you receive an error indicating that Snowflake cannot access the S3 bucket. Which of the following could be the potential causes and solutions?

A. The Snowflake integration object is not correctly configured with the IAM role ARN. Solution: Verify the parameter in the integration object matches the IAM role ARN.
B. The SNOWFLAKE DEPLOYMENT role is not granted access to the Integration object. Solution: Grant USAGE privilege on the Integration to the SNOWFLAKE DEPLOYMENT role.
C. The external stage URL is incorrect. Solution: Ensure the URL provided in the 'CREATE APPLICATION PACKAGE EXTERNAL STAGE command is the correct S3 bucket URL.
D. The S3 bucket policy does not allow access from the Snowflake AWS account. Solution: Update the bucket policy to explicitly allow access from the Snowflake AWS account, using the IAM role's principal.
E. The IAM role does not have sufficient permissions to access the S3 bucket. Solution: Update the IAM role's policy to grant 's3:GetObject' and 's3:ListBuckeV permissions on the bucket.

Antwort: A,C,D,E

Begründung:
Several issues can prevent Snowflake from accessing the S3 bucket. A,B,C, and D all represent potential problems. If the IAM role lacks the necessary permissions (A), Snowflake won't be able to retrieve the application package. If the integration object has an incorrect IAM role ARN (B), Snowflake won't be able to assume the correct role. If the S3 bucket policy doesn't allow access from Snowflake's AWS account (C), access will be denied. An incorrect stage URL (D) will also prevent access. SNOWFLAKE_DEPLOYMENT role is not related to accessing Integrations, so option E is irrelevant here.

271. Frage
You are designing a Snowflake Native App that needs to store temporary state information specific to each consumer account. This state information should not be directly accessible to the consumer but must be persistent across application sessions. Which of the following approaches are valid and recommended for storing this data?

A. Create a public schema in the application package and store the state information in tables within that schema. Grant SELECT access to the consumer's account on these tables.
B. Store the state information in a private schema within the application package, ensuring that consumers do not have direct access.
C. Use external stages connected to a provider controlled AWS S3 bucket or similar.
D. Utilize internal stages within the application package to store the state data as files.
E. Create secured views that expose the state data but control access through application roles.

Antwort: B,D

Begründung:
Options B and D are the correct approaches. Option D: Private schema, Consumers should not have direct access to the app's internal data. Storing state information in a private schema within the application package ensures that consumers cannot directly query or modify this data, preserving the application's internal state and security. Option B: Internal Stages, offer a way to store file-based data that is tightly coupled with the application package. It enables you to persist the state information for each consumer securely. Option A is incorrect as it gives consumers direct access. Option C is incorrect because the requirement says the data cannot be accessible, not that it should be controlled. Option E creates dependency on external infrastructure.

272. Frage
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