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Snowflake NAS-C01 Exam Syllabus Topics:

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

>> NAS-C01的中合格問題集 <<

Snowflake NAS-C01日本語、NAS-C01的中問題集

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Snowflake SnowPro Specialty - Native Apps 認定 NAS-C01 試験問題 (Q282-Q287):

質問 # 282
You are tasked with developing a Snowflake Native App that leverages a Partner provided secret using an external function which will send the processed data to their system. You plan to store the OAuth information to be used by the external function in a secret object managed by Snowflake. Which of the following steps are NECESSARY to ensure secure and correct setup of this app? Select all the options that apply.

A. Grant the 'USAGE privilege on the API integration to the application role if the external function requires an API integration. GRANT USAGE ON API INTEGRATION TO APPLICATION ROLE
B. Store the OAuth token directly within the external function's definition as a variable, ensuring it is encrypted using AES ENCRYPT before deployment.
C. Create a Secret object in Snowflake to store the OAuth token securely and reference it within the external function using 'SYSTEM$GET_SECRET function. Ensure proper access rights on the Secret object.
D. Grant the 'IMPORTED PRIVILEGES privilege on the database containing the Secret object to the application role. GRANT IMPORTED PRIVILEGES ON DATABASE TO APPLICATION ROLE '
E. Bypass storing the OAuth token in Snowflake and instead rely on passing it as a parameter to the external function from the consumer account, documented clearly for the consumer's security responsibilities.

正解：A、C、D

解説：
Storing the OAuth token directly in the function (A) is insecure. Passing the OAuth token from the consumer (E) is not a recommended practice. The correct approach is to use Snowflake's Secret object (B) to store the token securely. The application role needs 'IMPORTED PRIVILEGES on the database containing the secret (C) to access the secret. The 'USAGE privilege on the API integration(D) is also needed if the external function leverages an API integration.

質問 # 283
You are developing a Snowflake Native Application that allows customers to enrich their dat a. The application involves executing Javascript UDFs. Which of the following practices are considered unacceptable regarding code practices within the UDFs to ensure the Native App complies with Snowflake's requirements and security best practices?

A. Relying solely on the consumer's network policy to manage external network access from the UDFs.
B. Using Javascript UDFs to access data not needed by the application to save on querying costs.
C. Directly embedding secrets (e.g., API keys, passwords) within the Javascript UDF code itself, even if obfuscated.
D. Using JavaScript's eval() function to dynamically execute code based on user input or data retrieved from external sources.
E. Using the SYSTEM$ALLOWLIST function to restrict external network access from the Javascript UDFs to a specific set of approved domains. Using Snowflake's network rules is also acceptable for newer accounts.

正解：A、B、C、D

解説：
Options B, C, D and E are all unacceptable. Embedding secrets (B) directly in code is a major security risk. Using 'eval()' (C) opens the door to code injection vulnerabilities. Relying solely on the consumer's network policy (D) is insufficient; the application provider must also implement security measures. Javascript UDFs should only access required data by the application as this is also one of best practices regarding code practices within the UDFs. Option A is acceptable as it implements whitelisting of external network access.

質問 # 284
You are developing a subscription-based Snowflake Native Application that offers tiered pricing (Basic, Premium, Enterprise) based on resource consumption (e.g., compute hours, data storage). Consumers select their desired tier during the subscription process. Your application needs to dynamically adjust resource limits based on the selected tier. Which combination of the following actions should you take to correctly implement this?

A. Leverage Snowflake's data governance features, creating row access policies for each tier and assigning them based on the consumer's subscription status
B. Use 'ALTER WAREHOUSE commands within the application to dynamically adjust warehouse sizes based on the selected tier, after retrieving the selected tier information via the application's configuration metadata.
C. Implement role-based access control (RBAC) using different roles for each tier, granting each role appropriate privileges for data access and compute resources. Assign users to roles based on their subscription tier.
D. Store tier-specific resource limits (e.g., compute hours, data storage limits) in a configuration table within the application. Implement stored procedures that enforce these limits during runtime using custom logic.
E. Create separate resource monitors for each tier and associate the consumer's account with the appropriate resource monitor based on their selected tier during application installation.

正解：B、D

解説：
The correct answers are A and D. Option A: Adjusting warehouse sizes dynamically with 'ALTER WAREHOUSE allows you to provide different compute resources based on the tier. Option D: Storing tier-specific resource limits in a configuration table and enforcing them in stored procedures allows for granular control over resource consumption. Option B is not a suitable solution for controlling resources within an application container. Resource monitors are more suited for organization-level control. Option C (RBAC) controls data access but doesn't inherently limit resource consumption. Option E is focused on row-level security and not relevant for governing overall resource limits.

質問 # 285
A Snowflake Native Application is being developed. The application requires access to a third-party API to enrich dat a. To securely store the API key, the developer plans to use a Secret object within Snowflake. Which of the following steps are necessary to grant the application, specifically an application role named 'data_processor' , the ability to read this Secret object? (Choose three)

A. Grant the USAGE privilege on the Secret object to the 'data_processor' application role.
B. Grant the USAGE privilege on the secret object to the 'APPLICATION PACKAGE.
C. The 'data_processor' application role automatically inherits privileges for accessing Secrets defined within the application package.
D. Grant the OWNERSHIP privilege on the Secret object to the 'data_processor' application role.
E. Grant the READ privilege on the Secret object to the 'data_processor' application role.

正解：A、E

解説：
To allow an application role to access a Secret object, you must explicitly grant the READ privilege on the secret to that application role. Additionally, you must also explicitly grant the USAGE privilege on the secret to that application role. OWNERSHIP grants all privileges and is not necessary in this scenario. Granting privileges to the APPLICATION PACKAGE only allows those privileges to be granted to application roles, not directly used by the application.

質問 # 286
A consumer reports that your Snowflake Native Application is consistently failing with an 'Insufficient privileges' error when attempting to execute a specific function. As the provider, you need to diagnose the issue. Which of the following steps should you perform FIRST, considering the principles of least privilege and secure data access in Snowflake Native Apps?

A. Temporarily disable all security policies (e.g., row access policies, masking policies) in the consumer's account to isolate the problem.
B. Request the consumer to grant 'OWNERSHIP of the target database to your application's service user.
C. Grant the 'USAGE privilege on the entire application package to the consumer's account, ensuring they have access to all components.
D. Examine the function's definition and the objects it accesses to ensure that the necessary privileges are granted to the application's invoker's rights (IR) role or owner's rights (OR) role, and that a data access framework is in place when needed.
E. Grant the "APPLY MASKING POLICY privilege on the database to the application invoker role.

正解：D

解説：
The correct approach is to examine the function's permissions and the underlying objects (Option B). It is crucial to identify the specific privileges required by the function and grant them to the appropriate role (IR/OR). This approach adheres to the principle of least privilege. Granting broad privileges like in Options A, C, and E is a security risk. Disabling security policies (Option D) is a debugging tactic but should not be a long-term solution and could expose sensitive data.

質問 # 287
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