Valid Snowflake NAS-C01 Questions: 100% Authentic [2026]

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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. Application roles and privileges 2. Building and versioning applications
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. Manifest files and setup scripts 2. Application packages and structure

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Practice NAS-C01 Mock | Real NAS-C01 Exam Answers

The Pass4training offers desktop Snowflake NAS-C01 Practice Exam software for students to practice for the NAS-C01 exam. This software mimics the actual SnowPro Specialty - Native Apps (NAS-C01) exam and tracks the student's progress, records grades, and compares results. Available for Windows computers, it requires an internet connection only for license validation.

Snowflake SnowPro Specialty - Native Apps Sample Questions (Q353-Q358):

NEW QUESTION # 353
You're building a Streamlit application within a Snowflake Native App that uses the Permissions API (hypothetical) to control access to sensitive dat a. Your security team has mandated that any changes to data access privileges must be audited. How can you effectively log all privilege grant and revoke operations performed via the Permissions API within your Streamlit application running inside Snowflake, assuming you are given the hypothetical 'PermissionsClient' and methods as below?

A. Rely solely on the Permissions API's built-in audit trails, assuming it automatically logs all operations to a system table accessible only by Snowflake administrators.
B. Leverage Snowflake's built-in 'QUERY _ HISTORY' view to track all SQL commands executed by the Streamlit application. Filter for 'GRANT and 'REVOKE statements to identify privilege changes. Replicate to external storage for retention.
C. Use Snowflake's native logging capabilities in the application's setup script, logging directly to the Snowflake event log. However, these logs may require a system administrator to interpret and extract.
D. Configure Snowflake's event tables for security to track privilege grants and revokes. Create a Streamlit function that fetches and displays these audit events within the application's admin panel. Push data into separate staging area.
E. Implement a custom logging function that captures the API calls and their parameters. Use a try-except block around each API call, logging the details to a separate audit table in Snowflake, and pushing logs to external SIEM tools.

Answer: E

Explanation:
Option A is the most comprehensive approach. It provides the most flexibility and control. By implementing a custom logging function, you can capture the specific details of each API call (including parameters), handle exceptions, and store the audit logs in a dedicated table within Snowflake. This table can then be easily queried, reported on, or integrated with external SIEM (Security Information and Event Management) tools for further analysis and alerting. Option B could be part of the solution, but filtering the QUERY_HISTORY table may not capture all details, especially if using stored procedures. It requires parsing SQL text, which can be brittle. Option C could work for some audit events, but you'd still need to create and manage a process to send these events to an audit log. Option D has limited granularity and security. Relying on Snowflake's native logs provides little control. Option E is incorrect; the hypothetical Permissions API doesn't automatically log actions to a user-accessible system table.

NEW QUESTION # 354
You are creating a Snowflake Native Application that will be distributed to consumer accounts. As part of the installation process, you need to ensure that a specific database role, 'DATA READER, is created in the consumer account and granted 'SELECT' privileges on a specific table in the consumer's shared dat a. Which of the following code snippets, when placed within the application's setup script (install.sql), will correctly achieve this, assuming the application is granted 'CREATE DATABASE ROLE?

Answer: D

Explanation:
Option D correctly creates the database role, grants the necessary privileges, and associates it with the application. Here's a breakdown: 'CREATE OR REPLACE DATABASE ROLE DATA_READER;': creates or replaces the database role 'DATA_READER in the consumer account. 'GRANT SELECT ON TABLE CONSUMER DB.PUBLIC.MY TABLE TO DATABASE ROLE DATA READER;': Grants the 'SELECT privilege on the specified table to the 'DATA_READER role. It assumes that already exists in the consumer account through data sharing or some other mechanism. 'GRANT DATABASE ROLE DATA READER TO APPLICATION ROLE app_public;': This grants the database role to the application role, making the database role available to the application via the 'app_public' application role. 'GRANT APPLICATION ROLE app_public TO APPLICATION This is essential. This makes sure the application has the privileges from the application role granted. Without this, the database role is effectively useless to the application. In the consumer account, this means it will be able to use application. It should have an application object representing installed app in Consumer Account. Option A is incorrect because granting to 'SHARE is not the appropriate way to grant the role to the application. This is meant for granting to other accounts. Option B is incorrect because application will not be able to use app_public if not granted. Option C is incorrect because you need to assign database role to application role so it can be properly managed at the application level. You also need to grant the application role to the applicatiom Option E is incorrect because you should not grant the application role to SHARE; it will provide access to any accounts using the share, and can lead to over-privileged access.

NEW QUESTION # 355
An application provider creates a Snowflake Native App that needs to access sensitive data within the consumer's account. The provider has already defined an APPLICATION ROLE named Which of the following combination of actions are required to grant the 'app_role' the ability to select data from a table named 'customer_data' in schema of database 'consumer_db' within the consumer's account? (Choose two)

A. Grant the 'IMPORTED PRIVILEGES' privilege on the 'consumer_db' database to the 'APPLICATION PACKAGE.
B. Grant the 'USAGE privilege on the schema to the 'APPLICATION ROLE app_role' .
C. Grant the 'SELECT privilege on the 'consumer_db.app_schema.customer_data' table to the 'APPLICATION ROLE app_role'.
D. No privileges are needed as the Application already installed in consumer account.
E. Grant the 'SELECT privilege on the 'consumer_db.app_schema.customer_data' table to the 'APPLICATION PACKAGE

Answer: B,C

Explanation:
To enable an application role to access objects in the consumer account, SELECT access on the table, along with usage access to the schema, need to be granted to the APPLICATION ROLE. Granting privileges to the APPLICATION PACKAGE only makes the privileges available for granting to the application roles, it does not automatically provide access. SELECT privilege on the table and USAGE on the schema are both needed. The APPLICATION ROLE, not PACKAGE, needs the SELECT privilege to the table. IMPORTED PRIVILEGES is typically granted to share data across accounts, not within an account for a Native App.

NEW QUESTION # 356
You are developing a Snowflake Native Application using Scala for a financial institution. The application processes sensitive transaction dat a. During consumer-side testing, the consumer reports intermittent 'java.lang.NullPointerException' errors. You suspect the issue lies within your UDE How can you effectively trace and debug this issue, considering data privacy requirements and without directly exposing sensitive consumer data in your logs?

A. Utilize 'System.out.println' statements within the Scala UDF to print debug messages directly to the query result. The consumer can view these messages to identify the source of the error, with the provider having no visibility.
B. Use Snowflake's event table to capture all exceptions, filtering for the UDF name. Redact potentially sensitive fields in the logs after extraction using a Python script executed on the provider side.
C. Implement structured logging within the Scala UDF using SLF4J and Logback. Include contextual information (e.g., transaction IDs, timestamps) at various stages of the UDF execution. Use Snowflake's masking policies on the event table to protect sensitive data during logging. This is the best method as it's the more granular and effective
D. Implement a custom error handling mechanism in Scala that catches 'NullPointerException', logs a generic error message with a unique error code to the event table, and then re-throws a more descriptive exception to the consumer. The consumer can then report the error code to the provider for further investigation. The provider can analyze the code, without actual consumer sensitive data.
E. Rely solely on Snowflake's query history to identify failing queries. Analyze the input data and execution plan to infer the cause of the NullPointerException.

Answer: C,D

Explanation:
Options B and E provide effective and secure debugging strategies. B involves structured logging with masking policies to protect sensitive data, while E uses error codes for communication between consumer and provider without exposing raw data. Option A suggests post- extraction redaction which could be inefficient and prone to errors. Option C provides an insufficient approach. Option D is incorrect, and should never be used.

NEW QUESTION # 357
You are developing a Snowflake Native App that provides data enrichment services to consumer accounts. The app requires access to both a secure internal API (accessible only within your provider account) and the consumer's data warehouse. Which of the following components and configurations are necessary to facilitate this access while adhering to Snowflake's security best practices?

A. A Python UDF defined in the application package that connects to the secure internal API using a secured API integration with allowed egress network policy that only allows connections from the app's deployment region. The consumer shares their database with the provider account through a data sharing arrangement.
B. A Java UDF defined in the application package uses JDBC connection to access a secure internal API endpoint. The consumer grants USAGE privilege to the application on their schemas.
C. A Stored Procedure defined in the application package that invokes the secure internal API via network rule with outbound traffic allowed only for the app, and utilizes a reader account to securely query the consumer s data with the use of SNOWFLAKE.CORE.AUTHZ.PASS_PRIVILEGES().
D. A Snowpark function that leverages the SNOWFLAKCORE.AUTHZ.PASS PRIVILEGES() function with the application role executing the code. The app requires the consumer to create a shared secret to access their API.
E. A UDF (User-Defined Function) defined in the application package that invokes the secure internal API using a secured API integration, and grants OWNERSHIP on it to the APPLICATION role. The consumer grants USAGE on their database to the application role.

Answer: E

Explanation:
Option A is the most secure and correct approach. A UDF allows for encapsulated logic, a secured API integration handles authentication and authorization to the internal API, application role owns the function, and the consumer grants USAGE to the application, limiting access. Option B is less secure, reader account and SNOWFLAKE.CORE.AUTHZ.PASS_PRIVILEGES() are not required. Option C is flawed as data sharing is not the recommended way for native app to consume customer data. Option D - Java UDFs with JDBC is not best practice, not supported, not secure. Option E - shared secret and SNOWFLAKE.CORE.AUTHZ.PASS PRIVILEGES() are not the right approach.

NEW QUESTION # 358
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