Quiz Useful Snowflake - NAS-C01 - Study SnowPro Specialty - Native Apps Demo

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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Snowflake Native Applications Design and Creation	35%	- Create and manage billing events and cost monitoring techniques 1. Formulate Snowflake native application workflows and procedures - Apply Snowflake best practices while building native application workloads 1. Design scalable applications 2. Build, distribute, and monetize apps in Snowflake
Topic 2: Snowflake Native Applications Installation and Testing	20%	- Install and test native applications 1. Validate application functionality and performance
Topic 3: Snowflake Native App Framework Overview	20%	- Understand Snowflake architecture, features, tools, and best practices 1. Account security and access management 2. Cloud-based computing and storage concepts 3. Data sharing and protection mechanisms
Topic 4: Snowflake Native Applications Deployment	25%	- Build, version, and release native applications 1. Use Snowflake's marketplace 2. Use data sharing for app interoperability

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q213-Q218):

NEW QUESTION # 213
A company is developing a Snowflake Native Application that will be distributed through the Snowflake Marketplace. The application uses internal stages to store intermediate data processing results. Which of the following methods is the MOST secure and recommended way to manage the application's internal stages?

A. Create an internal stage owned by the application database role. The application framework automatically grants necessary permissions.
B. Create an internal stage owned by a custom role created specifically for stage management within the application, granting only necessary permissions.
C. Create an internal stage owned by the ACCOUNTADMIN role and grant usage to the application database role.
D. Create an internal stage owned by the application database role and grant usage to all roles within the application.
E. Create an external stage in AWS S3 or Azure Blob Storage and grant access to the application database role.

Answer: B

Explanation:
Creating a custom role specifically for stage management and granting only the necessary permissions (such as READ and WRITE) follows the principle of least privilege and enhances security. The ACCOUNTADMIN role is overly privileged. Relying on the application framework to automatically grant permissions may not provide sufficient control. External stages introduce dependencies and require managing external credentials. The database role may not be granular enough; a dedicated role is more secure.

NEW QUESTION # 214
You are developing a Snowflake Native App that requires accessing a specific table within the consumer's account. The consumer should not have direct access to this table. Which of the following is the MOST secure and appropriate method to grant the necessary access?

A. Granting direct SELECT access to the consumer role on the table in the provider account, ensuring to revoke access after the app is installed.
B. Granting the CONSUMPTION usage privilege on the provider account database to the consumer account, and then granting SELECT on the specific table to a role that the app assumes.
C. Creating a Snowflake Secure UDF that queries the table within the provider account and exposing the UDF to the consumer account through a package.
D. Creating a Snowflake Secure View on the table in the provider account and sharing this view with the consumer account using Data Sharing.
E. Employing a Stored Procedure owned by the application role that queries the table in the provider account, and allowing access to the procedure via API integration.

Answer: C

Explanation:
Secure UDFs allow you to execute queries in the provider account without exposing the underlying table directly to the consumer. This isolates the data and minimizes the risk of unauthorized access. Stored procedures offer similar functionality, but UDFs are generally simpler and more performant for basic data retrieval. Secure Views via data sharing expose the structure to the consumer account, and granting direct access is a major security risk.

NEW QUESTION # 215
You've installed a Snowflake Native Application that provides advanced data analytics. The application requires a consumer-defined function (UDF), 'MASK SENSITIVE DATA, to be created in their account and used by the application. The application's setup script includes logic to check for the UDF's existence, but you want to ensure the application gracefully handles the case where the consumer has not yet created the UDF. Which of the following strategies can you implement to improve the application's resilience and provide a better user experience in this scenario? Select all that apply.

A. Dynamically generate the application code using a stored procedure, only including the parts of the code that rely on if the function exists. Use 'SYSTEM$GET PRIVILEGES()' to check existence.
B. Within the application's SQL code, use the 'TRY FUNCTION' function to call 'MASK SENSITIVE DATA'. If the UDF does not exist, 'TRY FUNCTION' will return 'NULL' instead of raising an error.
C. Implement error handling within the application's code to catch the 'SQL compilation error: UDF does not exists exception. Provide a user-friendly error message and instructions on how to create the UDF.
D. In the application's setup script, create a placeholder UDF with the same name and signature as 'MASK SENSITIVE DATA' that returns 'NULL'. The application logic can then handle 'NULL' values appropriately until the consumer provides the actual UDF.
E. Require the consumer to create the UDF before installing the application. The application setup script should fail if the UDF is not found, preventing installation.

Answer: B,C

Explanation:
Options B and C are the best strategies for handling the missing UDF gracefully. 'TRY_FUNCTION' allows the application to continue running even if the UDF is not present, while error handling provides a clear and informative message to the user. Option A is problematic because it introduces a UDF that is not the intended function, potentially leading to data inconsistencies. Option D creates a rigid dependency and a poor user experience. Option E adds unnecessary complexity.

NEW QUESTION # 216
Consider the following 'manifest.yml' file for a Snowflake Native App:

A. The application version will be automatically assigned by Snowflake during the installation process on the consumer side.
B. The application version will default to '0.1.0' and the application can be installed successfully by any consumer account.
C. The application will fail to install because no 'privileges' are listed in the manifest file. All applications must declare the necessary privileges.
D. The application version will default to '0.0.1'. If the application includes a view, then the view needs access to the user data and must have a privilege declared to allow users to view data from the application.
E. The application will fail to install because the version property is missing. Each version must explicitly be specified in the manifest file.

Answer: E

Explanation:
A valid version is mandatory in 'manifest.yml' to install native apps. When version is missing, the installation will fail.

NEW QUESTION # 217
You are tasked with publishing a Snowflake Native Application to the Snowflake Marketplace. Your application relies on specific external packages available through Anacond a. You've already built your application and are preparing to create the listing. Which steps are NECESSARY to ensure that consumer accounts can successfully install and use your application, considering external package dependencies?

A. Explicitly import all required external packages within the application's setup script using 'import
B. When creating the Snowflake Marketplace listing, specify the required external packages under the 'External Packages' section using the fully qualified package name (e.g., 'snowflake.ml.modeling').
C. Consumers are automatically prompted to install any missing external packages upon installing the application; no specific action is required during listing creation.
D. Distribute the packages directly as part of the application code. This avoids external dependencies.
E. Include a 'requirements.txt file within your application package listing all required Python packages and their versions.

Answer: B

Explanation:
Option C is correct. The Snowflake Marketplace listing requires you to explicitly declare the external packages your application depends on in the 'External Packages' section. This allows Snowflake to automatically handle the package installation in the consumer's account. Options A and B are relevant during application development, not listing creation. Option D is not scalable for commonly used packages. Option E is incorrect because consumer intervention may be necessary but Snowflake must be aware of dependencies to guide them.

NEW QUESTION # 218
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