Snowflake SnowPro Core Certification NAS-C01

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Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. When designing the architecture of a Snowflake Native App, which of the following architectural considerations and trade-offs should you carefully evaluate to optimize performance, security, and cost-effectiveness? (Select all that apply)

A) Using secured API integration to call the external APIs to get real time details in the app to make the app more useful.
B) Storing all application data within the provider account and accessing it directly from the consumer account using data sharing to avoid data duplication.
C) Choosing the appropriate data access model (e.g., UDFs, stored procedures, Snowpark) based on the specific use case and performance requirements, considering the overhead associated with each approach.
D) Implementing robust error handling and logging mechanisms to facilitate debugging and monitoring of the application's behavior in both the provider and consumer environments.
E) Minimizing data transfer between the provider and consumer accounts by leveraging Snowpark and UDFs for data processing within the consumer's environment.

2. A Snowflake Native Application, leveraging Snowpark Container Services (SPCS), is designed to perform complex data transformations on data residing within the customer's Snowflake account. The transformations require significant computational resources, and the container occasionally encounters resource constraints, leading to performance degradation. Which of the following strategies can you employ to optimize resource utilization and ensure the container runs efficiently within the customer's SPCS environment?

A) Rewrite the data transformation logic to utilize Snowflake's built-in SQL functions and stored procedures whenever possible. Move the transformation workload out of the container.
B) Implement horizontal scaling within the container by deploying multiple replicas of the application and distributing the workload among them using a load balancer. The consumer must configure the number of replicas.
C) Increase the memory and CPU limits specified in the 'spec.yaml' file for the Snowpark Container Services deployment. This provides the container with more resources within the allocated compute pool.
D) Optimize the container image by removing unnecessary dependencies and libraries, reducing its overall size and startup time.
E) Increase the size of the virtual warehouse associated with the SPCS compute pool. This directly provides more computational resources to the container.

3. A provider is testing their Snowflake Native Application in a consumer environment. The application includes a Streamlit app that displays data from a table provisioned in the consumer account. The consumer reports that the Streamlit app is displaying an errorrelated to accessing the table. The 'streamlit.secretS dictionary is used to store the database connection details. The application role app_role' is designed to have access to the table. Which of the following could be potential causes of the problem, assuming the connection details are valid?

A) The consumer has not shared the database containing the table with the provider account.
B) The 'streamlit.secretS dictionary is not accessible to the application due to incorrect file permissions.
C) The 'app_role' does not have the privilege on the database containing the table.
D) The Streamlit app is not properly configured to assume the when executing queries.
E) The 'app_role' does not have the 'SELECT privilege on the table.

4. You are developing a Snowflake Native Application. You need to grant specific privileges on a warehouse named 'APP WH' to the application role 'app_public' to allow application users to execute queries within that warehouse. Which of the following SQL statements is the MOST secure and appropriate way to achieve this, adhering to the principle of least privilege?

A)

B)

C)

D)

E)

5. 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 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.
B) 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.
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 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.
E) The SNOWFLAKE DEPLOYMENT role is not granted access to the Integration object. Solution: Grant USAGE privilege on the Integration to the SNOWFLAKE DEPLOYMENT role.

Solutions: