Latest Snowflake COF-C02 Free Certification Exam Material with 265 Q&As
UPDATED COF-C02 Exam Questions Certification Test Engine to PDF
Snowflake COF-C02 Exam Syllabus Topics:
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NEW QUESTION 11
True or False: When a user creates a role, they are initially assigned ownership of the role and they maintain ownership until it is transferred to another user.
- A. False
- B. True
Answer: B
NEW QUESTION 12
When unloading to a stage, which of the following is a recommended practice or approach?
- A. Avoid the use of the CAST function
- B. Define an individual file format
- C. Use OBJECT_CONSTRUCT ( * ) when using Parquet
- D. Set SINGLE: = true for larger files
Answer: A
NEW QUESTION 13
Which of the following activities consume virtual warehouse credits in the Snowflake environment? (Choose two.)
- A. Running EXPLAIN and SHOW commands
- B. Caching query results
- C. Running COPY commands
- D. Running a custom query
- E. Cloning a database
Answer: B,D
NEW QUESTION 14
When should you consider disabling auto-suspend for a Virtual Warehouse? Choose 2 answers
- A. When you don't want to have to manually turn on the Warehouse each time a user needs it
- B. When managing a steady workload
- C. When the compute must be available with no delay or lag time
- D. When users will be using compute at different times throughout a 24/7 period
Answer: B,C
NEW QUESTION 15
A user has a standard multi-cluster warehouse auto-scaling policy in place.
Which condition will trigger a cluster to shut-down?
- A. When after 5-6 consecutive checks the system determines that the load on the most-loaded cluster could be redistributed.
- B. When after 2-3 consecutive checks the system determines that the load on the least-loaded cluster could be redistributed.
- C. When after 2-3 consecutive checks the system determines that the load on the most-loaded cluster could be redistributed.
- D. When after 5-6 consecutive checks the system determines that the load on the least-loaded cluster could be redistributed.
Answer: B
NEW QUESTION 16
Which of the following are options when creating a Virtual Warehouse?
- A. Local SSD size
- B. Auto-suspend
- C. Auto-resume
- D. User count
Answer: B,C
NEW QUESTION 17
Which of the following languages can be used to implement Snowflake User Defined Functions (UDFs)? Choose 2 answers
- A. Python
- B. SQL
- C. Java
- D. JavaScript
Answer: B,D
NEW QUESTION 18
What is the MOST performant file format for loading data in Snowflake?
- A. ORC
- B. CSV (Unzipped)
- C. CSV (Gzipped)
- D. Parquet
Answer: B
NEW QUESTION 19
What is the minimum Snowflake edition required to create a materialized view?
- A. Business Critical Edition
- B. Standard Edition
- C. Virtual Private Snowflake Edition
- D. Enterprise Edition
Answer: D
NEW QUESTION 20
Snowflake is designed for which type of workloads? (Choose two.)
- A. OLAP (Analytics) workloads
- B. Concurrent workloads
- C. OLTP (Transactional) workloads
- D. On-premise workloads
Answer: A,B
NEW QUESTION 21
Which of the following describes external functions in Snowflake?
- A. They can return multiple rows for each row received
- B. They are a type of User-defined Function (UDF).
- C. They call code that is stored inside of Snowflake.
- D. They contain their own SQL code.
Answer: B
Explanation:
External functions are user-defined functions that are stored and executed outside of Snowflake.
External functions make it easier to access external API services such as geocoders, machine learning models, and other custom code running outside of Snowflake. This feature eliminates the need to export and reimport data when using third-party services, significantly simplifying your data pipelines.
https://docs.snowflake.com/en/sql-reference/external-functions.html#:~:text=External%20functions%20are%20user%2Ddefined,code%20running%20outside%20of%20Snowflake.
NEW QUESTION 22
A marketing co-worker has requested the ability to change a warehouse size on their medium virtual warehouse called mktg__WH.
Which of the following statements will accommodate this request?
- A. GRANT MODIFY ON WAREHOUSE MKTG WH TO ROLE MARKETING;
- B. ALLOW RESIZE ON WAREHOUSE MKTG__WH TO USER MKTG__LEAD;
- C. GRANT OPERATE ON WAREHOUSE MKTG WH TO ROLE MARKETING;
- D. GRANT MODIFY ON WAREHOUSE MKTG__WH TO USER MKTG__LEAD;
Answer: A
NEW QUESTION 23
When scaling out by adding clusters to a multi-cluster warehouse, you are primarily scaling for improved:
- A. Performance
- B. Concurrency
Answer: B
NEW QUESTION 24
Which Snowflake technique can be used to improve the performance of a query?
- A. Indexing
- B. Clustering
- C. Using INDEX_HINTS
- D. Fragmenting
Answer: B
NEW QUESTION 25
Snowflake supports the use of external stages with which cloud platforms? (Choose three.)
- A. Oracle Cloud
- B. IBM Cloud
- C. Docker
- D. Google Cloud Platform
- E. Microsoft Azure Cloud
- F. Amazon Web Services
Answer: C,D,E
NEW QUESTION 26
Which of the following are valid Snowflake Virtual Warehouse Scaling Policies? (Choose two.)
- A. Standard
- B. Optimized
- C. Economy
- D. Custom
Answer: A,C
NEW QUESTION 27
What is the purpose of an External Function?
- A. To share data in Snowflake with external parties
- B. To call code that executes outside of Snowflake
- C. To ingest data from on-premises data sources
- D. To run a function in another Snowflake database
Answer: B
Explanation:
https://docs.snowflake.com/en/sql-reference/external-functions.html
NEW QUESTION 28
Which copy INTO command outputs the data into one file?
- A. MULTIPLE=FAISE
- B. FILE_NUMBER=1
- C. MAX_FILE_NUMBER=1
- D. SINGLE=TRUE
Answer: D
NEW QUESTION 29
Which of the following commands cannot be used within a reader account?
- A. CREATE SHARE
- B. DROP ROLE
- C. SHOW SCHEMAS
- D. ALTER WAREHOUSE
- E. DESCRBE TABLE
Answer: D
Explanation:
A reader account is intended primarily for querying data shared by the provider of the account. Adding new data to the account and/or updating shared data in the account is not supported. Changing the configuration of virtual warehouses is also not permitted as those resources are owned and managed by the provider of the account which is sharing the data.
NEW QUESTION 30
What is the default file size when unloading data from Snowflake using the COPY command?
- A. 32 MB
- B. 5 MB
- C. 16 MB
- D. 8 GB
Answer: C
NEW QUESTION 31
What is a responsibility of Snowflake's virtual warehouses?
- A. Query execution
- B. Infrastructure management
- C. Query parsing and optimization
- D. Metadata management
- E. Permanent storage of micro-partitions
Answer: A
NEW QUESTION 32
Which item in the Data Warehouse migration process does not apply in Snowflake>
- A. Migrate Indexes
- B. Migrate Users
- C. Build the Data pipeline
- D. Migrate Schemas
Answer: A
NEW QUESTION 33
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