No Installation Required, Instantly Prepare for the COF-C02 exam and please click the below link to start the COF-C02 Exam Simulator with a real COF-C02 practice exam questions.
Use directly our on-line COF-C02 exam dumps materials and try our Testing Engine to pass the COF-C02 which is always updated.
- (Topic 1)
Which feature is only available in the Enterprise or higher editions of Snowflake?
Correct Answer:A
Column-level security is a feature that allows fine-grained control over access to specific columns within a table. This is particularly useful for managing sensitive data and ensuring that only authorized users can view or manipulate certain pieces of information. According to my last update, this feature was available in the Enterprise Edition or higher editions of Snowflake.
References: Based on my internal data as of 2021, column-level security is an advanced feature typically reserved for higher-tiered editions like the Enterprise Edition in data warehousing solutions such as Snowflake.
https://docs.snowflake.com/en/user-guide/intro-editions.html
- (Topic 5)
How does Snowflake reorganize data when it is loaded? (Select TWO).
Correct Answer:BC
When data is loaded into Snowflake, it undergoes a reorganization process where the data is stored in a columnar format and compressed. The columnar storage format enables efficient querying and data retrieval, as it allows for reading only the necessary columns for a query, thereby reducing IO operations. Additionally, Snowflake uses advanced compression techniques to minimize storage costs and improve performance. This combination of columnar storage and compression is key to Snowflake's data warehousing capabilities.
References:
✑ Snowflake Documentation: Data Storage and Organization
- (Topic 3)
A Snowflake user executed a query and received the results. Another user executed the same query 4 hours later. The data had not changed.
What will occur?
Correct Answer:A
Snowflake maintains a result cache that stores the results of every query for 24 hours. If the same query is executed again within this time frame and the data has not changed, Snowflake will retrieve the data from the result cache instead of using a virtual warehouse to recompute the results2.
- (Topic 2)
What are the responsibilities of Snowflake's Cloud Service layer? (Choose three.)
Correct Answer:ABD
The responsibilities of Snowflake??s Cloud Service layer include authentication (A), which ensures secure access to the platform; resource management (B), which involves allocating and managing compute resources; and query parsing and optimization (D), which improves the efficiency and performance of SQL query execution3.
- (Topic 4)
What happens when a Snowflake user changes the data retention period at the schema level?
Correct Answer:B
When the data retention period is changed at the schema level, all child objects that do not have an explicit retention period set will inherit the new retention period from the schema4.