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Snowflake SnowPro Specialty - Native Apps Sample Questions:

1. You are developing a Snowflake Native App that requires accessing sensitive user data within the consumer's account. To ensure data privacy and security, you need to implement appropriate access controls. Which of the following approaches is the MOST secure and recommended way to grant your app access to this data, assuming the data is stored in a table named 'user_data' ?

A) Defining a secure view that filters the table based on the application role and granting 'SELECT privilege on the secure view to the application role provided by Snowflake Native App Framework.
B) Granting 'SELECT privilege directly on the 'user_data' table to the application role provided by Snowflake Native App Framework.
C) Granting 'USAGE privilege on the 'user_data' table directly to the application role provided by Snowflake Native App Framework.
D) Creating a custom role in the consumer account with 'SELECT privilege on the 'user_data' table and granting that role to the application.
E) Using a stored procedure with 'EXECUTE AS CALLER that accesses the 'user_data' table. Grant 'EXECUTE privilege on the stored procedure to the application role.

2. You are designing the setup script for a Snowflake Native Application. This application requires the creation of several views based on data residing in the consumer's account. These views need to be dynamically created based on a configuration table that is part of your application package. The configuration table contains view names, the underlying tables in the consumer's account, and the specific SQL queries for each view. The design must adhere to best practices for security and data governance. Which approach would you use for designing this setup script, considering security vulnerabilities and execution context?

A) Create a series of static 'CREATE VIEW' statements within the setup script, each targeting a predefined table in the consumer's account. The application will handle data filtering within these views.
B) Use a stored procedure, owned by the application, to dynamically generate and execute the 'CREATE VIEW statements. The stored procedure reads the view definitions from the configuration table and creates the views using dynamic SQL.
C) Employ parameterized SQL (using '?' 7 placeholders) within the 'CREATE VIEW' statements, binding the view names and queries read from the configuration table. Execute these statements using 'EXECUTE IMMEDIATE to prevent SQL injection vulnerabilities.
D) Directly construct and execute the 'CREATE VIEW' statements within the setup script using string concatenation, reading the view definitions from the configuration table. This minimizes code complexity and ensures immediate view creation.
E) Use dynamic SQL generation with proper escaping functions (e.g., to prevent SQL injection. Store the generated SQL in a temporary table, and then execute each statement from the temporary table using 'EXECUTE IMMEDIATE

3. You are developing a Snowflake Native Application that provides data enrichment services. A consumer reports that a specific query against a view, 'ENRICHED DATA, occasionally returns incorrect results. You suspect a race condition in the underlying stored procedure that populates a temporary table used by the view. Which of the following strategies would be MOST effective in diagnosing and resolving this issue within the application ?

A) Replace the temporary table with a permanent table with appropriate locking mechanisms to prevent concurrent modifications. Consumers will need to be notified of a minor version update.
B) Use Snowflake's 'GET_DDL' function to retrieve the SQL definition of the consumer's query and analyze it for potential errors.
C) Isolate the portion of the stored procedure that writes to the temporary table into a separate stored procedure with 'EXECUTE AS CALLER privileges.
D) Implement a retry mechanism with exponential backoff in the stored procedure to handle potential concurrency issues when writing to the temporary table.
E) Implement logging within the stored procedure to capture the execution flow and intermediate data values. Use 'SYSTEM$GET PREDECESSORS to track dependencies. Analyze the logs to identify the race condition. Use a session table rather than a temp table.

4. You are developing a Snowflake Native Application for a data enrichment service and plan to list it on the Snowflake Marketplace. You want to control the costs incurred by consumers of your application while maximizing its accessibility. Which of the following strategies represent Snowflake Marketplace best practices for cost management and pricing?

A) Offer a free trial period with limited functionality to allow potential consumers to evaluate the application before committing to a paid subscription.
B) Provide detailed cost estimation documentation outlining the expected costs for different usage scenarios and data volumes.
C) Implement a tiered pricing model based on data volume processed, compute resources consumed, or number of users accessing the application. Offer a free basic tier with limited functionality.
D) Refrain from providing any cost-related information upfront to encourage broader adoption, deferring cost discussions until after installation and usage.
E) Use Snowflake's built-in resource monitors to proactively track application consumption and alert consumers when they approach predefined spending limits.

5. You are preparing a Snowflake Native Application for its initial release. You have a 'setup.sqP file that creates necessary tables and roles. You are also planning for future updates. Which of the following practices will BEST ensure smooth, version-upgrade compatible deployments for your application's consumers?

A) Avoid using 'CREATE OR REPLACE TABLE in 'setup.sqr and always use 'CREATE TABLE IF NOT EXISTS.
B) Always drop and recreate all application objects in each new version's 'setup.sqr to ensure a clean slate.
C) Use stored procedures within 'setup.sqr to encapsulate schema changes and data migrations, making them idempotent.
D) Include detailed comments in 'setup.sql' explaining the purpose of each SQL statement and the logic behind schema changes.
E) Use a consistent naming convention for all application objects and clearly document any breaking changes in release notes.

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