FREE PDF 2025 COF-C02: HIGH PASS-RATE SNOWPRO CORE CERTIFICATION EXAM TEST GUIDE ONLINE

Free PDF 2025 COF-C02: High Pass-Rate SnowPro Core Certification Exam Test Guide Online

Free PDF 2025 COF-C02: High Pass-Rate SnowPro Core Certification Exam Test Guide Online

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The Snowflake COF-C02 Exam is intended for data professionals with at least six months of Snowflake experience. The evaluation process is divided into two categories: Core Concepts and Querying. In the Core Concepts section, candidates will confront questions about snowflake accounts, virtual warehouses, databases, tables, columns, and other essential Snowflake features. The Querying part of the exam comprises a set of queries in Snowflake to demonstrate the candidate's ability to process complex data scenarios.

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Snowflake SnowPro Core Certification Exam Sample Questions (Q11-Q16):

NEW QUESTION # 11
What information is stored in the ACCESS_HlSTORY view?

  • A. Details around the privileges that have been granted for all objects in an account
  • B. History of the files that have been loaded into Snowflake
  • C. Query details such as the objects included and the user who executed the query
  • D. Names and owners of the roles that are currently enabled in the session

Answer: A

Explanation:
Details around the privileges that have been granted for all objects in an account. The ACCESS_HISTORY view in Snowflake provides a comprehensive log of access control changes, including grants and revocations of privileges on all securable objects within the account. This information is crucial for auditing and monitoring the security posture of your Snowflake environment.
Here's how to understand and use the ACCESS_HISTORY view:
* Purpose of ACCESS_HISTORY View: It is designed to track changes in access controls, such as when a user or role is granted or revoked privileges on various Snowflake objects. This includes tables, schemas, databases, and more.
* Querying ACCESS_HISTORY: To access this view, you can use the following SQL query pattern:
SELECT * FROM SNOWFLAKE.ACCOUNT_USAGE.ACCESS_HISTORY WHERE EVENT_TYPE =
'GRANT' OR EVENT_TYPE = 'REVOKE';
* Interpreting the Results: The results from the ACCESS_HISTORY view include the object type, the specific privilege granted or revoked, the grantee (who received or lost the privilege), and the timestamp of the event. This data is invaluable for audits and compliance checks.
Reference: For detailed information on the ACCESS_HISTORY view and how to interpret its data, please visit the official Snowflake documentation: https://docs.snowflake.com/en/sql-reference/account-usage
/access_history.html


NEW QUESTION # 12
How do secure views compare to non-secure views in Snowflake?

  • A. Secure views are similar to materialized views in that they are the most performant.
  • B. Secure views execute slowly compared to non-secure views.
  • C. There are no performance differences between secure and non-secure views.
  • D. Non-secure views are preferred over secure views when sharing data.

Answer: C

Explanation:
Secure views and non-secure views in Snowflake are differentiated primarily by their handling of data access and security rather than performance characteristics. A secure view enforces row-level security and ensures that the view definition is hidden from the users. However, in terms of performance, secure views do not inherently execute slower or faster than non-secure views. The performance of both types of views depends more on other factors such as underlying table design, query complexity, and system workload rather than the security features embedded in the views themselves.
Reference:
Snowflake Documentation on Views: This section provides an overview of both secure and non-secure views, clarifying that the main difference lies in security features rather than performance, thus supporting the assertion that there are no inherent performance differences.


NEW QUESTION # 13
How can a Snowflake user optimize query performance in Snowflake? (Select TWO).

  • A. Cluster a table.
  • B. Enable Time Travel.
  • C. Index a table.
  • D. Create a view.
  • E. Enable the search optimization service.

Answer: A,E

Explanation:
To optimize query performance in Snowflake, users can cluster a table, which organizes the data in a way that minimizes the amount of data scanned during queries. Additionally, enabling the search optimization service can improve the performance of selective point lookup queries on large tables34.


NEW QUESTION # 14
Which Snowflake objects can be restored using Time Travel? (Select VNO).

  • A. Users
  • B. Roles
  • C. Databases
  • D. Virtual warehouses
  • E. Schemas

Answer: C,E


NEW QUESTION # 15
What is the MINIMUM Snowflake edition required to add masking policies to selectively mask plain-text data in a table or in view columns at query time?

  • A. Business Critical
  • B. Standard
  • C. Enterprise
  • D. Virtual Private Snowflake (VPS)

Answer: C


NEW QUESTION # 16
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