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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Snowflake Native Applications Deployment	25%	- Build, version, and release native applications 1. Use data sharing for app interoperability 2. Use Snowflake's marketplace
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. Data sharing and protection mechanisms 2. Account security and access management 3. Cloud-based computing and storage concepts
Topic 4: 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

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q335-Q340):

NEW QUESTION # 335
A consumer wants to install a Snowflake Native App. They have already identified the app in the Snowflake Marketplace. After attempting to install the application, they receive an error stating 'Insufficient privileges to install application'. Which of the following steps are MOST likely required to resolve this issue? (Select Two)

A. The application provider needs to grant the 'IMPORTED PRIVILEGES to the consumer account.
B. The consumer's account administrator needs to grant the 'APPLY APPLICATION' privilege to the role used by the consumer attempting to install the application.
C. The application provider needs to explicitly share the application package with the specific role the consumer is using for installation.
D. The consumer needs to have the 'CREATE APPLICATION PACKAGE privilege on the target account.
E. The consumer's account administrator needs to grant the 'CREATE APPLICATION' privilege to the role used by the consumer attempting to install the application.

Answer: B,E

Explanation:
The 'APPLY APPLICATIONS privilege is required to install an application from the Snowflake Marketplace. The 'CREATE APPLICATION' privilege is needed to create the application object in the consumer account during installation. Option B is incorrect because 'IMPORTED PRIVILEGES is used by the provider to grant access. Option C is wrong because 'CREATE APPLICATION PACKAGE is for providers. Option E is incorrect; applications are shared via the marketplace.

NEW QUESTION # 336
You are the provider of a Snowflake Native Application built with Scal
a. Consumers are reporting that a specific UDF, 'calculate_risk' , occasionally returns incorrect results for certain input datasets. You suspect an issue with the UDF's logic but struggle to reproduce the problem in your development environment. Given that you cannot directly access the consumer's data, what are the most effective strategies for diagnosing this issue?

A. Request the consumer to execute the UDF with the problematic datasets and provide the resulting incorrect output. Then, use Snowflake's query history and lineage features to trace the data flow and identify potential issues in the UDF's logic.
B. Request the consumer to provide anonymized sample data that triggers the issue. Use this data in your development environment to debug the UDF.
C. Modify the UDF to include a 'debug' mode that performs additional checks and assertions. The consumer can enable this mode to collect diagnostic information and report any failures back to the provider. Consumer shares the error logs/code
D. Implement comprehensive unit tests for the 'calculate_risk' UDF, covering a wide range of input values and edge cases. Ensure these tests pass before deploying new versions of the application.
E. Implement logging within the 'calculate_risk' UDF to capture input parameters and output values for a sample of executions. Store these logs in a secure table accessible only to the provider, subject to data governance policies. Utilize Snowflake's masking policies to mask the sensitive data and allow the provider to see only masked version, not the actual sensitive data.

Answer: C,D,E

Explanation:
Options B, C, and D are all valid strategies. Robust unit testing (B) helps prevent future issues. Logging input/output (C) provides valuable insights into UDF behavior. A debug mode (D) allows consumers to assist in diagnostics without exposing their data directly. Option A could violate data privacy, and option E is less effective as query history might not reveal the root cause within the UDF's logic.

NEW QUESTION # 337
Consider the following scenario: You are tasked with designing a setup script for a Snowflake Native Application. This script needs to perform several tasks including creating a database role, granting privileges to the role, and creating a schem a. Your application also provides a configuration table that needs to be populated during the setup process. Which of the following set of statements are true regarding the order of operations and security best practices within the setup script? (Choose all that apply)

A. The setup script should always be designed to be idempotent, meaning it can be executed multiple times without causing errors or unintended side effects. Use 'CREATE ... IF NOT EXISTS' where appropriate.
B. Setup Scripts should be designed in a way that it requires multiple manual interventions during execution.
C. Populating the configuration table should be done before creating any other objects, as other parts of the application might rely on the configuration during object creation.
D. It is best practice to create the database role before creating the schema, to immediately grant ownership on the schema to the created role.
E. When granting privileges to the database role, use the 'APPLICATION' keyword to grant privileges on application objects, enhancing security and control.

Answer: A,D,E

Explanation:
Option A is correct because creating the role first allows for immediate ownership and control over the newly created schema. Option B is correct as using the 'APPLICATIONS keyword when granting privileges is a key security best practice in Snowflake Native Apps. It allows for controlled access to the data within the Application. Option D is correct because idempotency ensures the setup process can be retried if interrupted without causing issues. Option C is incorrect because, While application configuration is important, object creation, like defining schemas and roles usually must preceed loading configuration, and depend on the existence of these core components. Option E is wrong since It should require minimal to zero manual intervension.

NEW QUESTION # 338
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. 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.
B. 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.
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. 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.
E. 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.

Answer: B

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 # 339
A data engineering team is developing a Snowflake Native Application that processes sensitive PII dat a. They need to update the application frequently with bug fixes and performance improvements without disrupting user access. Which of the following strategies BEST balances rapid iteration with data security and minimal downtime? Consider that the application uses a secure UDF that needs to be updated in conjunction with other application code.

A. Use versioning, creating a new version of the application package for each set of changes, and instruct consumers to manually update their application instances to the latest version.
B. Release patches as separate SQL scripts that consumers must manually apply to their installed application instances using the ACCOUNTADMIN role.
C. Completely rebuild the application package for each release, pushing a new application to Snowflake Marketplace, forcing users to uninstall and reinstall. This guarantees a clean state but may cause disruptions.
D. Use versioning, leveraging application roles and grants to control access to specific application versions. Employ automated rollout procedures to progressively expose new versions to consumers using application lifecycle management features.
E. Implement in-place upgrades to the application package every time a bug fix is released, granting UPDATE privileges on the underlying data tables to the application.

Answer: D

Explanation:
Versioning with automated rollouts via application lifecycle management is the optimal approach. It provides a structured, secure, and less disruptive method for deploying updates. Application roles and grants allow granular control over access, and automated procedures ensure a smooth transition for consumers, avoiding manual intervention and potential errors. In-place updates and manual patch application expose security risks and increase operational overhead. Rebuilding the application each time is inefficient and impractical.

NEW QUESTION # 340
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