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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Deployment and Marketplace Publishing	25%	- Distribution and lifecycle management 1. Marketplace listings and publishing 2. Version upgrades and release management
Native Application Design and Creation	35%	- Application development workflow 1. Building and versioning applications 2. Application roles and privileges
Installation, Testing and Troubleshooting	20%	- Validation and debugging 1. Tracing and troubleshooting workflows 2. Logging and event tables
Snowflake Native App Framework Overview	20%	- Native application concepts and architecture 1. Application packages and structure 2. Manifest files and setup scripts

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q294-Q299):

NEW QUESTION # 294
A Native Application is being developed that requires access to the consumer's Snowflake account for billing purposes. The application needs to record the query history of the consumer's account to estimate resource usage. Which is the MOST secure and efficient method for the Native App to access this data, minimizing the permissions granted to the app and considering the governance aspects?

A. Grant the ' MONITOR USAGE' privilege to the Native App's service account, allowing it to query the view.
B. Grant the 'ACCOUNTADMIN' role to the Native App's service account. This provides full access to the account's query history.
C. Use the 'READ SESSION' privilege to allow the application to read the current session context and infer the resource usage from it.
D. Create a stored procedure within the Native App that executes as the 'OWNER and queries the view. The stored procedure is granted to the Native App's service account with 'EXECUTE privileges.
E. Grant the ' USAGE privilege on the 'SNOWFLAKE' database to the Native App's service account, allowing it to query all tables and views in that database.

Answer: D

Explanation:
Granting 'ACCOUNTADMIN' is highly insecure and violates the principle of least privilege. 'MONITOR USAGE is not sufficient to query 'QUERY_HISTORY. 'READ SESSION' provides limited contextual information and wouldn't allow retrieval of full query history. Granting USAGE on the 'SNOWFLAKE database is too broad and exposes more data than necessary. A stored procedure executing as the 'OWNER allows controlled access to the query history while minimizing the permissions granted directly to the application's service account.

NEW QUESTION # 295
A Snowflake Native App developer is creating a new application database. They need to ensure that only the application itself and designated roles within the provider account can access the database. Which of the following CREATE DATABASE statements would BEST achieve this, adhering to best practices for application isolation and security?

Answer: E

Explanation:
The 'WITH MANAGED ACCESS clause is crucial for enforcing managed access to the database. This ensures that only the database owner (application) and explicitly granted roles have access to the objects within the database, promoting better security and control in a provider account. 'MANAGED SCHEMAS is schema level parameter not a DATABASE level parameter. Option A creates a database without managed access. Option B is syntactically incorrect. Option D is unrelated to access control. Option E is not the same as managed access.

NEW QUESTION # 296
A Snowflake Native Application provider is deploying their application in multiple regions (AWS US-East-l and AWS EU-Central-l). The application relies on external functions that interact with a third-party API. The provider wants to optimize for both latency and cost while ensuring high availability. Which of the following strategies represents the MOST effective approach for configuring and deploying these external functions to meet these requirements? Select two.

A. Create a single external function that uses a conditional statement to route requests to different API endpoints based on the Snowflake region where the function is being called. This approach reduces management overhead.
B. Utilize Snowflake's cross-region replication feature to automatically replicate the external functions between regions. This ensures that the functions are always available in both regions.
C. Host the external function code directly within the Snowflake application package and leverage Snowflake's serverless compute to execute the function logic without relying on external APIs.
D. Deploy separate external functions in each region, pointing to API endpoints hosted in the respective regions. Configure each external function with the same security integration to simplify access management.
E. Configure a global load balancer in front of the third-party API endpoints and point all external functions to the load balancer's endpoint. This allows the load balancer to route requests to the closest available API endpoint.

Answer: D,E

Explanation:
Options B and D are the most effective. Deploying separate external functions in each region (B) allows for regional optimization, reducing latency by calling API endpoints hosted in the same region. Configuring the same security integration simplifies access management. Using a global load balancer (D) adds another layer of resilience and allows for dynamic routing to the closest available API endpoint, improving availability and potentially reducing costs. Option A could introduce latency due to conditional logic and potentially suboptimal routing. Option C is not applicable as external functions are not replicated by Snowflake replication. E cannot be hosted directly to the Snowflake application package

NEW QUESTION # 297
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. Use Snowflake's 'GET_DDL' function to retrieve the SQL definition of the consumer's query and analyze it for potential errors.
B. 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.
C. Implement a retry mechanism with exponential backoff in the stored procedure to handle potential concurrency issues when writing to the temporary table.
D. Isolate the portion of the stored procedure that writes to the temporary table into a separate stored procedure with 'EXECUTE AS CALLER privileges.
E. 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.

Answer: B,C

Explanation:
Options A and D are correct. A retry mechanism can mitigate concurrency issues. Logging helps diagnose the race condition. Option B introduces a permanent table, which changes the app's architecture and might have unintended side effects. Option C examines the consumer's query, but the issue is within the provider's application. Option E is unlikely to resolve the race condition and can introduce security concerns. A session table ensures isolation and mitigates concurrency problems.

NEW QUESTION # 298
Consider the following scenario: You're developing a Snowflake Native Application that requires both data loading and complex analytical queries. You plan to use separate warehouses to optimize performance and manage resources effectively. Given the requirements, which of the following warehouse configurations is the MOST appropriate?

A. Two warehouses: one dedicated to data loading configured with "WAREHOUSE_SIZE = X-SMALL' and another for analytical queries configured with 'WAREHOUSE SIZE = LARGE and 'MAX CONCURRENCY LEVEL = 8'.
B. One large warehouse to handle both data loading and analytical queries, sharing resources to minimize costs.
C. Two warehouses: one dedicated to data loading, configured with to save costs and other warehouse for analytical queries.
D. Two warehouses: one with 'AUTO SUSPEND = 60' for data loading and another with 'AUTO SUSPEND = 3600' for analytical queries.
E. One warehouse sized 'X-SMALL' for data loading and another sized URGE' for analytical queries.

Answer: A

Explanation:
Option D provides the best configuration. Using separate warehouses allows you to optimize each workload independently. SMALL' is often sufficient for data loading tasks, while a 'LARGE warehouse provides better performance for analytical queries. Setting 'MAX CONCURRENCY LEVELS on the analytical warehouse allows for better handling of multiple concurrent users or queries. Option A does not isolate workloads and can lead to performance bottlenecks. Option B only addresses size but not concurrency. Option C focuses only on auto- suspend, ignoring other warehouse parameters for optimizing workload.Option E is partially correct, because Initially_Suspended is good idea but does not help in complete warehouse setting.

NEW QUESTION # 299
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