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Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. Consider the following setup script snippet for a Snowflake Native Application:

What is the primary purpose of the 'WHERE NOT EXISTS' clause in the 'INSERT' statement within this setup script?

A) To ensure that the 'INSERT statement only executes if the table is empty.
B) To guarantee that the 'app_data.configuration' table always contains the latest version of the 'api_endpoint' parameter, overwriting any existing value.
C) To handle potential errors that may occur if the 'api_endpoint' parameter is already defined in the consumer's account.
D) To optimize the performance of the 'INSERT statement by avoiding unnecessary insertions when the configuration parameter already exists.
E) To prevent duplicate rows with the same 'param_name' from being inserted into the 'app_data.configuration' table during subsequent installations or upgrades of the application.

2. You are the provider of a Snowflake Native Application built with Scal
a. Consumers are reporting that a specific UDF, 'calculate_risk' , occasionally returns incorrect results for certain input datasets. You suspect an issue with the UDF's logic but struggle to reproduce the problem in your development environment. Given that you cannot directly access the consumer's data, what are the most effective strategies for diagnosing this issue?

A) Modify the UDF to include a 'debug' mode that performs additional checks and assertions. The consumer can enable this mode to collect diagnostic information and report any failures back to the provider. Consumer shares the error logs/code
B) Implement comprehensive unit tests for the 'calculate_risk' UDF, covering a wide range of input values and edge cases. Ensure these tests pass before deploying new versions of the application.
C) Implement logging within the 'calculate_risk' UDF to capture input parameters and output values for a sample of executions. Store these logs in a secure table accessible only to the provider, subject to data governance policies. Utilize Snowflake's masking policies to mask the sensitive data and allow the provider to see only masked version, not the actual sensitive data.
D) Request the consumer to provide anonymized sample data that triggers the issue. Use this data in your development environment to debug the UDF.
E) Request the consumer to execute the UDF with the problematic datasets and provide the resulting incorrect output. Then, use Snowflake's query history and lineage features to trace the data flow and identify potential issues in the UDF's logic.

3. You are developing a Snowflake Native Application that uses a Stored Procedure to orchestrate complex data processing tasks. This stored procedure is defined within the application package. When testing in test mode, which of the following security considerations are paramount to ensure the procedure executes correctly and securely, without unintentionally granting excessive privileges to the consumer?

A) Create a dedicated service user specifically for the application and grant only the necessary privileges to this user. The stored procedure should then execute with the privileges of this service user using the 'EXECUTE AS CALLER clause. This allows granular access control.
B) Since the application is running in test mode, security is not a major concern. Granting all necessary privileges directly to the application role simplifies testing without compromising the consumer's security.
C) Ensure that any roles granted to the application role also have the necessary privileges to execute the stored procedure, and access the objects it interacts with. The stored procedure must be defined with 'EXECUTE AS CALLER.
D) Define the stored procedure with the 'EXECUTE AS OWNER clause. This ensures the procedure always runs with the privileges of the application owner, regardless of the caller's permissions.
E) Grant the 'EXECUTE' privilege on the stored procedure to the 'PUBLIC' role during test mode. This simplifies testing but should be revoked before publishing the application.

4. You are developing a Snowflake Native Application that provides data transformation services. You want to provide example SQL scripts to consumers within the application package to showcase how to use the application's functions. Where should these example scripts be stored to ensure they are accessible to consumers upon installation?

A) Store the example SQL scripts in a table within the application database and provide a view to access them.
B) Store the example SQL scripts as files within the application package itself (e.g., in a 'scripts' directory) and use relative paths to access them from within the application code.
C) Store the example SQL scripts in a separate stage within the provider account and grant USAGE on the stage to the application role.
D) Store the example SQL scripts in an external stage (e.g., AWS S3) and provide instructions to the consumer to load them.
E) Embed the example SQL scripts directly as string literals within the setup script.

5. You are the provider of a Snowflake Native Application. After releasing version '1.0' of your application, a security vulnerability is discovered. You quickly develop a fix in version '1.1 What steps should you take to ensure that all consumer accounts are promptly and securely upgraded to the fixed version, minimizing disruption to their operations and ensuring their data security?

A) Grant 'USAGE' privilege to all consumer accounts on version '1.1 Monitor consumer adoption of the newer version, and after a reasonable period, revoke 'USAGE on version '1.0'. Communicating the importance of upgrading.
B) Announce the security vulnerability and the availability of version '1.1 through the Snowflake Marketplace. Rely on consumer accounts to self-upgrade based on their awareness and urgency.
C) Immediately revoke 'USAGE privileges on version '1 .C for all consumer accounts, forcing them to contact you for an upgrade to '1.1'. Provide upgrade instructions in the application's documentation.
D) Use the 'ALTER APPLICATION PACKAGE ... SET DEFAULT VERSION = '1.1" command. This will automatically upgrade all existing installations to the new version during their next scheduled refresh.
E) Contact Snowflake Support to request a forced upgrade of all consumer accounts to version ' 1.1 due to the security vulnerability.

Solutions: