Snowflake SnowPro Specialty - Native Apps : NAS-C01 Exam Questions

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Snowflake NAS-C01 Exam Syllabus Topics:

Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. You are tasked with deploying a Snowflake Native Application that performs real-time data analysis. The application requires a warehouse to run and a user with specific privileges to access dat a. You want to automate the deployment process as much as possible, including warehouse creation, user provisioning, and privilege granting, all within the application package. Given the security considerations and best practices for Snowflake Native Applications, which of the following approaches is the MOST secure and recommended?

A) Request the consumer to manually create the warehouse and user with the required privileges before installing the application. Provide detailed instructions in the application documentation.
B) Employ a secure deployment pipeline that leverages a separate, pre-authorized Snowflake account to provision the warehouse and useL The application package then only includes the application logic, assuming the resources already exist.
C) Utilize the 'INSTALL' privilege when creating the application package and execute the SQL script (containing 'CREATE WAREHOUSE, 'CREATE USER , and 'GRANT) within the application's setup script using the 'EXECUTE IMMEDIATE command. This allows the application to create resources within the consumer's account.
D) Include a SQL script within the application package that uses the 'CREATE WAREHOUSE, 'CREATE USER , and 'GRANT commands to create the warehouse, user, and grant necessary privileges. The script will be executed by the consumer upon installation.
E) Use a setup script within the application package, granting it the 'APPLY APPLICATION PASSTHROUGH PRIVILEGES privilege. This will enable the application to inherit the privileges of the user who installed the application, allowing it to create the warehouse and user on their behalf.

2. Consider the following snippet from a Snowflake Native App manifest file (application.yaml):

Which of the following statements are TRUE regarding how these parameters can be accessed and used within the application's SQL code?

A) Option D
B) Option B
C) Option C
D) Option A
E) Option E

3. An application provider wants to grant usage privileges on a warehouse named 'APP WAREHOUSE to a consumer account so their application can use the warehouse's compute resources. Which of the following SQL statements would correctly accomplish this goal, ensuring only the necessary privileges are granted to the consumer's application role 'APP ROLE?

A)

B)

C)

D)

E)

4. You have created a Snowflake Native Application that includes a User-Defined Function (UDF) written in Python. The UDF processes JSON data and performs complex calculations. During testing in a consumer's account, you discover that the UDF is running slower than expected. What steps can you take to optimize the UDF's performance? (Select TWO)

A) Switch the UDF implementation from Python to SQL, as SQL UDFs are generally faster than Python UDFs.
B) Reduce the complexity of the UDF by simplifying the calculations and minimizing the amount of data processed.
C) Increase the warehouse size allocated to the consumer's account, as this directly impacts UDF execution speed.
D) Leverage vectorization techniques within the Python UDF using libraries like NumPy to perform operations on entire arrays instead of individual elements.
E) Recompile the UDF with the latest version of the Snowflake runtime environment.

5. You are designing a Snowflake Native Application that uses Streamlit for its user interface. The application requires users to authenticate with their Snowflake credentials before accessing any dat a. The application also implements Role Based Access Control (RBAC) using application roles. After successful authentication, you need to securely determine the user's current role within the application and store it for subsequent authorization checks within Streamlit. Which of the following represents the most secure and reliable approach to achieve this?

A) After successful authentication using Snowflake credentials, configure the Streamlit application to execute 'SELECT CURRENT ROLE()' and immediately create temporary tables and views based on this role with session control. Let Snowflake control RBAC.
B) Execute 'SELECT after successful authentication and store the role name in a Streamlit session state variable Cst.session_state' ). Retrieve the role name from the session state for authorization checks.
C) Rely on Snowflake's built-in auditing features to implicitly track user access and role assignments. Avoid storing the role within the Streamlit application.
D) Fetch the user's Snowflake username using 'SELECT after successful authentication. Create a mapping table within the application that associates usernames with roles. Lookup the role based on the username from this table.
E) Use a custom authentication system that bypasses Snowflake's native authentication. Store user roles directly within the application's metadata. Use this system when you need more control over roles.

Solutions: