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Snowflake NAS-C01 Exam Syllabus Topics:

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

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Snowflake SnowPro Specialty - Native Apps Sample Questions (Q65-Q70):

NEW QUESTION # 65
Your Snowflake Native Application uses a combination of stored procedures and UDFs. You've implemented robust logging within your application to track usage and potential errors. You want to grant a Snowflake support engineer temporary access to these logs for troubleshooting purposes, minimizing the risk of exposing sensitive consumer dat a. Select the two statements below that describe best practices to ensure security and efficiency.

A. Use a temporary table to copy the relevant log data, mask sensitive information using 'MASKING POLICY or 'ANONYMIZATION' and grant the support engineer SELECT access to the temporary table. Schedule the table to drop automatically after a short period (e.g. 24 hours).
B. Create a dedicated view on the logging table that filters out sensitive data (e.g., PII) and grant the support engineer SELECT privileges on this view.
C. Create a new user role specifically for support and grant this role SELECT privileges on the logging tables without any filtering.
D. Implement row-level security (RLS) policies on the logging table to restrict access based on the support engineer's role.
E. Grant the support engineer OWNERSHIP of the database containing the logging tables. This allows them full access for troubleshooting.

Answer: A,B

Explanation:
Options A and D are the most secure and efficient methods. Option A creates a restricted view, limiting the data the engineer can see. Option D uses masking and temporary tables to provide access to anonymized data for a limited time. Granting ownership (B) provides excessive permissions. RLS (C) is valid, but more complex for temporary access. The best practice is to avoid granting access directly to raw data or granting unnecessary privileges. Option E lacks security considerations by granting direct access to raw unfiltered data.

NEW QUESTION # 66
A Native Application developer, Alice, is building a data processing pipeline within her Snowflake Native App that includes a scheduled task. The task executes a stored procedure which needs to access data from a table owned by the consumer account. The application package version '1.0.0' has been released to a consumer. The task has been created and suspended. Which of the following SQL commands are required for Alice, as the application provider, to grant the necessary privileges on the consumer's environment to enable the task to execute successfully when it is resumed? Select ALL that apply.

A. GRANT EXECUTE TASK ON DATABASE TO APPLICATION ROLE app_public;
B. GRANT EXECUTE TASK ON TASK my_task TO APPLICATION ROLE app_public;
C. GRANT EXECUTE TASK ON TASK my_task TO APPLICATION ROLE app_owner;
D. GRANT EXECUTE MANAGED TASK ON ACCOUNT TO SHARE;
E. GRANT EXECUTE TASK ON ACCOUNT TO SHARE;

Answer: B,D

Explanation:
When managing tasks in Snowflake Native Apps that run in the consumer account, the 'EXECUTE MANAGED TASK' privilege on the account share is required to allow the application provider to manage and execute the tasks within the consumer's environment. Additionally, the 'EXECUTE TASK privilege needs to be granted to the application role that is responsible for executing the task. This is typically 'app_public' which is given execute task privileges. 'app_owner' is typically only used for managing the application itself.

NEW QUESTION # 67
Consider a scenario where you are developing a Snowflake Native App which utilizes a UDF (User-Defined Function). This UDF needs to access a secure external API using a secret stored securely within Snowflake. Which of the following statements are accurate regarding the necessary privileges and architecture for this setup? (Select all that apply)

A. The application package needs the EXECUTE privilege on the secret for the UDF to use it.
B. The application developer needs the "APPLY privilege to create the secret in the application package.
C. The application instance must be granted the REFERENCE USAGE privilege on the secret to allow the UDF to access it.
D. The consumer account automatically inherits access to secrets created in the application package.
E. The application developer needs the 'CREATE SECRET privilege to create the secret in the application package.

Answer: C,E

Explanation:
The correct answers are A and B. The application developer requires the 'CREATE SECRET privilege within the application package to create the secret. After creation, the application instance (not the package directly) needs the 'REFERENCE USAGE' privilege on the secret, enabling the UDF within the application to access the secret's value at runtime. Consumer accounts do not automatically inherit access to secrets within the app. Secrets act like securely stored credentials used by app logic, and access is controlled by privilege grants on the instance. 'APPLY is irrelevant in this context.

NEW QUESTION # 68
A Snowflake Native App provider is experiencing intermittent failures during consumer installation attempts. The logs on the provider side show generic error messages with limited details. You suspect the issue lies within the Java UDFs used by the application. Which combination of actions would MOST effectively help you diagnose the root cause, assuming you have access to both the provider and consumer environments?

A. Implement structured logging within the Java UDFs using SLF4J or java.util.logging, including detailed context (e.g., input parameters, intermediate variable values). Configure Snowflake to capture UDF logs and analyze them using SQL. Enable tracing using Snowflake's Event Tables and correlate UDF execution with other system events.
B. Attempt to reproduce the error in a local Java development environment using mock data. If successful, use a debugger to step through the code. Do not configure any logging within Snowflake itself.
C. Rely solely on Snowflake's default logging capabilities. Increase the logging level to DEBUG for the entire Snowflake account. Contact Snowflake support immediately for assistance with debugging the Java UDFs.
D. Implement try-catch blocks within the Java UDFs to catch exceptions and log them to a dedicated Snowflake table. Use Snowflake's error functions (e.g., ERRORCODE(Y , 'ERRORMESSAGE(Y) to capture relevant information about the exceptions.
E. Disable all Java UDFs within the application and re-attempt the installation on the consumer side. If the installation succeeds, re-enable the UDFs one at a time to isolate the faulty UDE Do not examine any logs.

Answer: A,D

Explanation:
Options A and E provide the most effective means of diagnosing the problem. Option A emphasizes structured logging and tracing within Snowflake, allowing for detailed analysis of UDF execution within the Snowflake environment, including correlation with other events. Option E allows you to catch and log exceptions within Snowflake using Snowflake functions for more specific error information. Option B is insufficient as Snowflake's default logging may not provide the necessary granularity. Option C is useful for debugging, but doesn't address issues specific to the Snowflake environment. Option D is a brute-force approach that doesn't provide information about the root cause.

NEW QUESTION # 69
You're developing a Snowflake Native Application that stores user preferences in a table named 'USER PREFERENCES'. In version 1.0, this table only contained 'USER ID and 'THEME' columns. In version 2.0, you need to add a new 'LOCALE' column with a default value of 'en-CIS'. However, existing users should retain their existing preferences and not have the new 'LOCALE' column set to 'NULL'. Which of the following 'setup.sql' scripts correctly implements this requirement during the version upgrade?

Answer: C

Explanation:
Option C is the correct answer. Adding the column with DEFAULT 'en-US' and using the IF NOT EXISTS check will prevent errors when upgrading a second time (or if the column was manually added previously). Setting a default value at the column definition level automatically populates the new column for existing rows when the column is added. Option A will accomplish the immediate objective, but doesn't account for repeated runs of the script. Options B and E will not check the column existence and result in an error, as well as will populate all rows with 'en-US'. Option D is redundantly updating to 'en-US', but it has the same issue as Option B, as it doesn't check column existence and result in an error.

NEW QUESTION # 70
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