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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Application Deployment & Distribution	25%	- Listing types and monetization - Publishing to Snowflake Marketplace - Upgrades and lifecycle management - Versioning and release management
Application Design & Creation	35%	- Security and access control - Application packages and objects - Native App Framework architecture - Manifest files and configuration - Setup scripts and application logic
Application Installation & Testing	20%	- Installation procedures and dependencies - Testing strategies and validation - Debugging and troubleshooting - Provider and consumer workflows
Advanced Features & Management	20%	- Event logging and telemetry - Governance and compliance - Billing events and cost monitoring - Integration with Snowpark and external services

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q14-Q19):

NEW QUESTION # 14
A team developing a Snowflake Native Application is encountering performance issues. They suspect that the warehouse configuration might be suboptimal. They want to dynamically adjust the warehouse size based on the CPU utilization. Which of the following approaches can effectively address these performance concerns and allow dynamic warehouse resizing while adhering to security best practices?

A. Develop a Snowflake script that queries the view, calculates the average CPU utilization over a period, and then executes 'ALTER WAREHOUSE' statement through the 'SYSTEM$WAIT' function to prevent resource contention. Assign the script's ownership to a dedicated application role.
B. Use an external task scheduling system (e.g., Airflow) to query the 'SNOWFLAKE.ACCOUNT USAGE.WAREHOUSE LOAD HISTORY view, calculate the average CPU utilization, and then execute ' ALTER WAREHOUSE using a Snowflake connector with credentials for a user with the ACCOUNTADMIN role.
C. Manually monitor warehouse CPU utilization and execute 'ALTER WAREHOUSE statements to resize the warehouse based on observed metrics. Use a dedicated Snowflake user for this purpose with the ACCOUNTADMIN role.
D. Directly use Snowflake's in-built auto-scaling features to dynamically resize based on load, if available, with appropriate resource monitors setup to control costs. Also, develop a Snowflake Script owned by a dedicated application role, that queries the view to determine average CPU utilization and dynamically resizes the warehouse using 'ALTER WAREHOUSE based on predefined thresholds. Grant the 'MODIFY privilege on the warehouse to the application role.
E. Develop a Snowflake Script owned by a dedicated application role. The script queries the view to determine average CPU utilization and dynamically resizes the warehouse using SALTER WAREHOUSE based on predefined thresholds. Grant the 'MODIFY privilege on the warehouse to the application role.

Answer: D,E

Explanation:
Option D offers a secure and automated approach. A Snowflake Script owned by an application role can safely query performance data and resize the warehouse. Granting 'MODIFY privilege is the correct way to allow an application role to alter the warehouse. Option A is manual and uses the powerful ACCOUNTADMIN role, which is not a best practice. Option B uses 'SYSTEM$WAIT which is not related to warehouse resizing and might be a anti-pattern and bad design. Option C uses an external system with the ACCOUNTADMIN role, which is less secure and complex. Option E utilizes both Snowflake's native auto-scaling and a custom script for a robust solution. It uses resource monitors which helps control costs and limits warehouse usages. This adds extra layer of protection and optimal utilization of resources, and is thus most correct and complete response.

NEW QUESTION # 15
You are developing a Snowflake Native Application that needs to be deployed across multiple consumer accounts. The application relies on a secure external function (SEF) for real-time data enrichment. The SEF interacts with a third-party API secured with OAuth 2.0. What are the MOST important considerations when designing the setup script for this application to ensure seamless deployment and security in the consumer accounts?

A. The setup script should explicitly create a new API integration with the consumer's credentials, separate from the provider's account. Consumer will manually update credentials.
B. The setup script should include instructions for the consumer to manually create and configure the API integration using their own OAuth 2.0 credentials after the application is installed.
C. The setup script should attempt to automatically create the API integration using the provider's credentials, but gracefully handle failures if the consumer's account lacks necessary privileges.
D. The setup script should create an API integration referencing a secret object in the consumer account, allowing the consumer to inject their own credentials post- installation.
E. The setup script should pre-configure the API integration in the provider account and securely share the credentials with consumer accounts during the installation process.

Answer: B,D

Explanation:
Options C and E are the most secure and practical. Option C gives the consumer full control of the OAuth credentials. Option E uses secure secret objects, providing a way for consumers to inject their credentials post-installation without exposing them directly in the setup script, adhering to the principle of least privilege and enhancing security. Options A and B represent poor security practice. Option D is unreliable.

NEW QUESTION # 16
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 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.
B. To ensure that the 'INSERT statement only executes if the table is empty.
C. To optimize the performance of the 'INSERT statement by avoiding unnecessary insertions when the configuration parameter already exists.
D. To handle potential errors that may occur if the 'api_endpoint' parameter is already defined in the consumer's account.
E. To guarantee that the 'app_data.configuration' table always contains the latest version of the 'api_endpoint' parameter, overwriting any existing value.

Answer: A

Explanation:
Option B is correct. The 'WHERE NOT EXISTS clause prevents duplicate entries for the 'api_endpoint' parameter. The setup script might run multiple times during application installations or upgrades, and without this clause, it would insert duplicate rows. Option A is incorrect, as the clause doesn't check if the entire table is empty. Option C is true to some extent, performance is one of the reasons but not the primary reason. Option D, The consumer account has no role to play here. Option E is wrong because it will do opposite as intended.

NEW QUESTION # 17
A data analytics company, 'Data Insights Pro', is developing a Snowflake Native Application to provide advanced customer segmentation analysis. They plan to monetize this application through the Snowflake Marketplace. They want to ensure that only a specific set of customer accounts can access and install their application during the initial beta testing phase. Which of the following steps must they perform to achieve this?

A. Create a private listing on the Snowflake Marketplace and share it with the specific customer accounts by explicitly granting access to their Snowflake account identifiers.
B. Create a public listing with a very high price to deter unintended installations, then manually adjust the price to zero for beta testers.
C. Use Snowflake's data sharing feature to share the application package with the customer accounts.
D. Publish the application directly to the Snowflake Marketplace without creating a listing, and then share the installation URL with the selected customer accounts.
E. Create a public listing on the Snowflake Marketplace and rely on Snowflake's built-in usage monitoring to identify the intended customer accounts.

Answer: A

Explanation:
A private listing allows you to control exactly which Snowflake accounts can see and install your application. Public listings are visible to everyone, and other options don't provide the necessary control over access during beta testing. Data sharing isn't used for native app distribution.

NEW QUESTION # 18
A data science team within your organization is developing a Snowflake Native App that needs to access and process customer data stored in a Snowflake database. The app must only access data for customers residing in the 'USA' region. The team has created a custom role 'APP ROLE for the app to use. Which of the following is the MOST secure and efficient way to grant the app the necessary permissions to read the filtered data? Assume a secure view approach is preferred over direct table access.

A. Create a secure view that filters customer data to include only customers in the 'USA' region and grant the SAPP ROLE the 'SELECT privilege on the secure view.
B. Grant the 'APP_ROLE the 'SELECT privilege on the base customer data table and rely on row-level security policies defined on that table.
C. Grant the 'APP_ROLE the 'USAGE privilege on the database and schema containing the customer data table. Data filtering should still be handled by the app.
D. Grant the SAPP ROLE the 'OWNERSHIP' privilege on the base customer data table and implement data filtering logic within the app itself.
E. Create a standard view (non-secure) that filters customer data to include only customers in the 'USA' region and grant the 'APP_ROLE the 'SELECT' privilege on this view.

Answer: A

Explanation:
Secure views offer a crucial security advantage: they hide the underlying table structure and any associated metadata from the app, only exposing the filtered data. Row-level security (RLS) can work (A), but secure views provide an extra layer of abstraction and security, hiding the existence of other rows. Granting ownership (C) is highly insecure and unnecessary. Non-secure views (D) do not offer the security benefits required for sensitive data. USAGE privilege alone (E) doesn't grant any data access without SELECT.

NEW QUESTION # 19
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