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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Snowflake Native Applications Deployment	25%	- Build, version, and release native applications 1. Use data sharing for app interoperability 2. Use Snowflake's marketplace
Snowflake Native Applications Installation and Testing	20%	- Install and test native applications 1. Validate application functionality and performance
Snowflake Native App Framework Overview	20%	- Understand Snowflake architecture, features, tools, and best practices 1. Data sharing and protection mechanisms 2. Cloud-based computing and storage concepts 3. Account security and access management
Snowflake Native Applications Design and Creation	35%	- Apply Snowflake best practices while building native application workloads 1. Build, distribute, and monetize apps in Snowflake 2. Design scalable applications - Create and manage billing events and cost monitoring techniques 1. Formulate Snowflake native application workflows and procedures

Snowflake SnowPro Specialty - Native Apps Sample Questions:

Question #1
You are creating a Snowflake Native Application that includes a stored procedure to process sensitive dat a. The procedure needs to access data from a table owned by the application package and write processed data to a table in the consumer's account. The data in the consumer's table must only be accessible by authorized roles within the consumer's account, not directly by the application itself. Which of the following approaches ensures the MOST secure and controlled access to the consumer's data?

A. Use the EXECUTE AS CALLER clause for the stored procedure, requiring the consumer to grant the necessary privileges to a role that executes the procedure.
B. Create a secure view on the consumer's table and grant the APPLICATION' role 'SELECT privileges on the view.
C. Store the processed data in an intermediate stage accessible to both the application and the consumer.
D. Implement an API endpoint within the application package that the consumer can call to retrieve the processed data.
E. Grant the 'APPLICATION' role direct 'SELECT and 'INSERT privileges on the consumer's table.

Question #2
You are developing a Snowflake Native App that needs to be configurable by the consumer during installation. You define parameters in the 'manifest.ymr file. During application installation, the consumer provides values for these parameters. How can you access these parameter values within your application's setup script ('setup.sql')?

A. You must use the 'GET_DDL' function to retrieve the parameter values from the application object definition. The returned DDL string will contain the parameter values, which you need to parse.
B. Use the ' SYSTEM$GET PARAMETER function within the 'setup.sqr script, passing the parameter name as an argument. This function retrieves the current value of the specified parameter for the application.
C. Parameter values are automatically available as global variables within the 'setup.sqr script. You can reference them directly by their name as defined in the 'manifest.yml'.
D. Parameter values are stored in a dedicated table automatically created by Snowflake during application installation. You can query this table using standard SQL to retrieve the parameter values.
E. Parameter values are passed as arguments to the 'setup.sqr script. You need to define input parameters in the script declaration and then access them by their position or name.

Question #3
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.

Question #4
A software company, 'Datalnsights', is developing a Snowflake Native Application that requires restricted access to a source data table in the consumer's account. Datalnsights wants to ensure that only the application can access the data, and the consumer cannot directly query it. What is the MOST secure and recommended approach Datalnsights should use within their application package to grant access?

A. Granting the ' USAGE privilege on the database and schema containing the source data table directly to the application role.
B. Creating a secure view on top of the source data table and granting 'SELECT privilege to the application role on the view.
C. Granting 'SELECT privilege directly on the source data table to the application role.
D. Exposing the table directly through the application's setup script using 'GRANT SELECT ON TABLE TO APPLICATION ROLE app_role' .
E. Using a secure UDF within the application to access the source data table, ensuring data masking and redaction, with only the UDF being granted SELECT privileges on the table.

Question #5
You're developing a Snowflake Native Application that stores user preferences in a table named 'USER PREFERENCES'. In version 1.0, this table only contained 'USER ID and 'THEME' columns. In version 2.0, you need to add a new 'LOCALE' column with a default value of 'en-CIS'. However, existing users should retain their existing preferences and not have the new 'LOCALE' column set to 'NULL'. Which of the following 'setup.sql' scripts correctly implements this requirement during the version upgrade?

A.

B.

C.

D.

E.