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Snowflake NAS-C01 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Deployment and Marketplace Publishing	25%	- Distribution and lifecycle management 1. Version upgrades and release management 2. Marketplace listings and publishing
Topic 2: Native Application Design and Creation	35%	- Application development workflow 1. Building and versioning applications 2. Application roles and privileges
Topic 3: Snowflake Native App Framework Overview	20%	- Native application concepts and architecture 1. Manifest files and setup scripts 2. Application packages and structure
Topic 4: Installation, Testing and Troubleshooting	20%	- Validation and debugging 1. Tracing and troubleshooting workflows 2. Logging and event tables

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q85-Q90):

NEW QUESTION # 85
A provider develops a Snowflake Native Application that requires access to consumer's 'ORDERS' table for data enrichment. The provider has created an object role 'app_role'. Which of the following steps are REQUIRED for the application to successfully access and query the 'ORDERS table in the consumer's environment during the installation phase?

A. The consumer grants IMPORTED PRIVILEGES on the share containing the 'ORDERS table to the 'app_role' in the provider account.
B. The consumer grants USAGE privilege on the database containing the 'ORDERS' table to the provider account.
C. The consumer grants USAGE privilege on the schema containing the 'ORDERS' table to the provider account.
D. The provider grants OWNERSHIP on the 'app_role' role to the application.
E. The consumer creates a new role, grants SELECT on the 'ORDERS' table to this role, and then grants the role to the application's 'app_role' in the consumer account. The application manifest specifies the consumer_role.

Answer: E

Explanation:
Option D is correct. To access the 'ORDERS' table, the consumer must grant necessary privileges to the application's 'app_role' within their account. Creating a new role, granting SELECT on the table to this role, and then granting the role to the application's role is the correct procedure. Options A, C, and E are incorrect because direct granting of privileges to the provider account is not the right way to provide application access, since Native Apps have to be securely isolated. Option B is incorrect because ownership transfer is generally not related to access within the consumer account.

NEW QUESTION # 86
You are developing a Snowflake Native Application that utilizes Snowpark Container Services to perform complex image processing. The application needs to securely access data stored in the consumer's Snowflake account, specifically a table named 'USER IMAGES' in the schema 'RAW DATA'. The container image is built and pushed to Snowflake's internal registry. Which of the following steps are necessary to ensure the container service can access this data securely and efficiently within the consumer's account without exposing credentials directly in the container environment?

A. Create a Snowflake network rule that allows access to all Snowflake internal IPs. Associate this rule with the container service's network policy.
B. Create a Snowflake database role, grant SELECT privileges on ' to this role, and then assign this role to the service account used by the container service through an entitlement.
C. Grant the SNOWFLAKE CONTAINER SERVICE role to the account administrator and use the administrator's credentials within the container service's code.
D. Create a Snowflake service account and grant it SELECT privileges on the 'RAW DATA.USER IMAGES table. Store the service account's credentials as environment variables within the container service's specification.
E. Configure a Snowflake OAuth integration and associate it with the container service. The container application would then use the OAuth client credentials to obtain an access token and authenticate with Snowflake.

Answer: B

Explanation:
The most secure and efficient way to grant access is to use database roles and entitlements. Creating a database role with the required privileges, assigning it to the service account of the container service through an entitlement provided to consumer is the recommended approach. This avoids storing credentials directly and provides fine-grained access control. Using SNOWFLAKE_CONTAINER_SERVICE role is too broad and admin credentials should never be used directly in the code. Storing service account credentials in environment variables is insecure. OAuth is not directly used for container services accessing data within the consumer's account in this manner; entitlements offer a more streamlined and secure approach. Network Rules control egress traffic, not access to Snowflake data within the account.

NEW QUESTION # 87
You are developing a Snowflake Native Application that relies on external Python packages. You've successfully added the necessary packages to the stage associated with your application package using 'snowflake-cli' during development. However, when testing the application in a consumer account, you encounter errors indicating that these packages are not found. What are the most likely reasons for this issue and how can you resolve them?

A. The packages were not correctly added to the stage. Verify that the packages are in the stage specified in the 'snowflake.yml' file, and that the application has the necessary permissions to read from the stage within the setup script.
B. The consumer account's Python environment is incompatible with the packages used by the application. Instruct the consumer to update their Python environment to match the application's requirements.
C. The consumer account does not have access to the Snowflake Marketplace where the packages are hosted. Request the consumer to enable access to the required marketplace listings.
D. The stage is not automatically shared with the consumer account as part of the application package. Ensure that your setup script includes a step to create a share and grant usage on the stage to the consumer account.
E. The 'snowflake.yml' file does not correctly specify the stage where the Python packages are located. Update the 'snowflake.yml' file to include the correct stage URL and ensure the application's setup script creates the stage and uploads the packages.

Answer: A,E

Explanation:
Options B and C are correct. Option B addresses the core issue of verifying that the Python packages are in the correct stage and that the application has permissions to read from it. If the packages aren't staged correctly or accessible, the application will fail to find them in the consumer account. Option C hits on a crucial configuration aspect if 'snowflake.ymr doesn't point to the right stage, the application won't know where to find the packages even if they exist. Sharing is implicitly handled by native apps so the share is not the problem. Consumers do not update python enviroments. Applications can not access the marketplace of the user's account.

NEW QUESTION # 88
You are designing a Snowflake Native Application that uses Streamlit for its user interface. The application requires users to authenticate with their Snowflake credentials before accessing any dat a. The application also implements Role Based Access Control (RBAC) using application roles. After successful authentication, you need to securely determine the user's current role within the application and store it for subsequent authorization checks within Streamlit. Which of the following represents the most secure and reliable approach to achieve this?

A. Fetch the user's Snowflake username using 'SELECT after successful authentication. Create a mapping table within the application that associates usernames with roles. Lookup the role based on the username from this table.
B. Execute 'SELECT after successful authentication and store the role name in a Streamlit session state variable Cst.session_state' ). Retrieve the role name from the session state for authorization checks.
C. After successful authentication using Snowflake credentials, configure the Streamlit application to execute 'SELECT CURRENT ROLE()' and immediately create temporary tables and views based on this role with session control. Let Snowflake control RBAC.
D. Use a custom authentication system that bypasses Snowflake's native authentication. Store user roles directly within the application's metadata. Use this system when you need more control over roles.
E. Rely on Snowflake's built-in auditing features to implicitly track user access and role assignments. Avoid storing the role within the Streamlit application.

Answer: B

Explanation:
Option A is the most secure and reliable approach. Using 'SELECT after successful authentication ensures that you are retrieving the role that Snowflake has currently assigned to the user in that session. Storing it in allows you to reuse this information throughout the Streamlit application without repeatedly querying Snowflake, improving performance. Session state is also secure, as it's tied to the user's session. Option B is less secure because managing a separate mapping table introduces redundancy and potential inconsistencies with Snowflake's role management. It also adds complexity to user management. Option C should not be adopted. Bypassing Snowflake's native authentication significantly weakens the application's security posture. Snowflake provides robust authentication mechanisms, and there is generally no need to bypass them. Option D is insufficient as a standalone solution because it doesn't provide the application with real- time access to the user's role for authorization checks. Option E is complex and can create unnecessary overhead with temporary objects. It doesn't directly address the need to store and reuse the role for various authorization checks within the Streamlit application.

NEW QUESTION # 89
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 to save costs and other warehouse for analytical queries.
B. One warehouse sized 'X-SMALL' for data loading and another sized URGE' for analytical queries.
C. One large warehouse to handle both data loading and analytical queries, sharing resources to minimize costs.
D. Two warehouses: one with 'AUTO SUSPEND = 60' for data loading and another with 'AUTO SUSPEND = 3600' for analytical queries.
E. 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'.

Answer: E

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 # 90
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