COF-C02 PDF Dumps 2023 Exam Questions with Practice Test
Dumps for Free COF-C02 Practice Exam Questions
Snowflake COF-C02 (SnowPro Core Certification) Certification Exam is a highly sought-after certification for professionals who want to validate their expertise in the field of data warehousing and analytics. Snowflake is one of the fastest-growing cloud-based data warehousing platforms, and this certification is designed to test the candidate's knowledge of Snowflake's core concepts and features. COF-C02 exam is intended for developers, architects, and administrators who have experience working with Snowflake and want to prove their proficiency in using the platform.
Passing the SnowPro Core Certification Exam is an excellent way for professionals to demonstrate their mastery of Snowflake's cloud data warehousing technology, and to enhance their career prospects. SnowPro Core Certification Exam certification is recognized globally, and employers across industries seek SnowPro-certified professionals for their data warehousing projects. Professionals who earn the certification can expect to be well-compensated and have a significant advantage over their peers in the job market.
NEW QUESTION # 171
What are the default Time Travel and Fail-safe retention periods for transient tables?
- A. Time Travel - 1 day. Fail-safe - 1 day
- B. Transient tables are retained in neither Fail-safe nor Time Travel
- C. Time Travel - 0 days. Fail-safe - 1 day
- D. Time Travel - 1 day. Fail-safe - 0 days
Answer: D
Explanation:
https://docs.snowflake.com/en/user-guide/data-cdp-storage-costs.html#:~:text=Temporary%20and%20Transient%20Tables,-To%20help%20manage&text=Temporary%20tables%20can%20also%20have,have%20no%20Fail%2Dsafe%20period.
NEW QUESTION # 172
When a Pipe is recreated using the CREATE OR REPLACE PIPE command:
- A. The REFRESH parameter is set to TRUE
- B. All of the above
- C. The Pipe load history is reset to empty
- D. Previously loaded files will be ignored
Answer: C
NEW QUESTION # 173
What are supported file formats for unloading data from Snowflake? (Choose three.)
- A. AVRO
- B. ORC
- C. CSV
- D. XML
- E. JSON
- F. Parquet
Answer: C,E,F
NEW QUESTION # 174
Which command is used to unload data from a Snowflake table into a file in a stage?
- A. COPY INTO
- B. WRITE
- C. GET
- D. EXTRACT INTO
Answer: A
NEW QUESTION # 175
What is the recommended compressed file size range for continuous data loads using Snowpipe?
- A. 10-99 MB
- B. 100-250 MB
- C. 16-24 MB
- D. 8-16 MB
Answer: C
NEW QUESTION # 176
True or false: Snowflake enforces unique, primary key, and foreign key constraints during DML operations.
- A. True
- B. False
Answer: B
NEW QUESTION # 177
What is the MOST performant file format for loading data in Snowflake?
- A. CSV (Gzipped)
- B. ORC
- C. Parquet
- D. CSV (Unzipped)
Answer: D
NEW QUESTION # 178
How would you determine the size of the virtual warehouse used for a task?
- A. If using the stored procedure to execute multiple SQL statements, it's best to test run the stored procedure separately to size the compute resource first
- B. Since task infrastructure is based on running the task body on schedule, it's recommended to configure the virtual warehouse for automatic concurrency handling using Multi-cluster warehouse (MCW) to match the task schedule
- C. Querying (select) the size of the stream content would help determine the warehouse size. For example, if querying large stream content, use a larger warehouse size
- D. Root task may be executed concurrently (i.e. multiple instances), it is recommended to leave some margins in the execution window to avoid missing instances of execution
Answer: A
NEW QUESTION # 179
True or False: A customer using SnowSQL / native connectors will be unable be unable to able to also use the Snowflake Web interface (UI) unless access to the UI is explicitly granted by supported.
- A. True
- B. False
Answer: B
NEW QUESTION # 180
By default, which Snowflake role is required to create a share?
- A. SHAREADMIN
- B. ORGADMIN
- C. SECURITYADMIN
- D. ACCOUNTADMIN
Answer: A
NEW QUESTION # 181
True or False: Snowflake's data warehouse was built from the ground up for the cloud in lieu of using an existing database or a platform, like Hadoop, as a base.
- A. True
- B. False
Answer: B
NEW QUESTION # 182
What are two ways to create and manage Data Shares in Snowflake? (Choose two.)
- A. Via the data_share=true parameter
- B. Via the Snowflake Web Interface (Ul)
- C. Via Virtual Warehouses
- D. Via SQL commands
Answer: B,D
Explanation:
Reference: https://docs.snowflake.com/en/user-guide/data-sharing-provider.html
NEW QUESTION # 183
Each incremental increase in Virtual Warehouse size (e,g. Medium to Large) generally results in what?
- A. More micro-partitions
- B. Higher storage costs
- C. Better query scheduling
- D. Double the numbers of servers In the compute duster
Answer: D
NEW QUESTION # 184
Which Snowflake architectural layer is responsible for a query execution plan?
- A. Data storage
- B. Cloud services
- C. Compute
- D. Cloud provider
Answer: D
NEW QUESTION # 185
True or False: All Snowflake table types include fail-safe storage.
- A. True
- B. False
Answer: B
NEW QUESTION # 186
What is the minimum Snowflake edition required to use Dynamic Data Masking?
- A. Virtual Private Snowflake (VPC)
- B. Enterprise
- C. Business Critical
- D. Standard
Answer: A
NEW QUESTION # 187
When is the result set cache no longer available? (Select TWO)
- A. When the underlying data has changed
- B. When another warehouse is used to execute the query
- C. When another user executes the query
- D. When it has been 24 hours since the last query
- E. When the warehouse used to execute the query is suspended
Answer: A,D
NEW QUESTION # 188
Which of the following objects can be shared through secure data sharing?
- A. Stored procedure
- B. Task
- C. External table
- D. Masking policy
Answer: C
NEW QUESTION # 189
Which of the following best describes where Snowflake's metadata is stored?
- A. within the drivers
- B. Within the data files
- C. In the Cloud Services Layer
- D. Inside the Virtual Warehouses
Answer: C
NEW QUESTION # 190
Query results are stored in the Result Cache for how long after they are last accessed, assuming no data changes have occurred?
- A. 12 hours
- B. 24 hours
- C. 3 Hours
- D. 1 Hour
Answer: B
NEW QUESTION # 191
Which formats does Snowflake store unstructured data in? (Choose two.)
- A. Array
- B. Object
- C. XML
- D. BLOB
- E. GeoJSON
Answer: B,D
NEW QUESTION # 192
How would you execute a series of SQL statements using Task?
- A. Create a task for each SQL statement (e.g. resulting in task1. task2, etc) and string the series of SQL statements by having a control task calling task 1, task 2 sequentially.
- B. A stored procedure executing multiple SQL statements and invoke the stored procedure from the task. CREATE TASK mytask.... AS call stored_proc_multiple_statements_inside():
- C. A stored procedure can have only one DML statement per stored procedure invocation and therefore you should sequence stored procedures calls in the task definition CREATE TASK mytask.... AS call stored_prc1(); call stored_proc2t);
- D. include the SQL statements in the body of the task create task mytask.. as insert into target1 select., from stream_s1 where .. INSERT INTO target2 SELECT .. FROM stream .s1 where ..
Answer: B
NEW QUESTION # 193
What is a key feature of Snowflake architecture?
- A. Zero-copy cloning creates a mirror copy of a database that updates with the original
- B. Software updates are automatically applied on a quarterly basis
- C. Snowflake automatically sorts DATE columns during ingest for fast retrieval by date
- D. Snowflake eliminates resource contention with its virtual warehouse implementation
- E. Multi-cluster warehouses allow users to run a query that spans across multiple clusters
Answer: E
NEW QUESTION # 194
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Snowflake is a cloud-based data warehousing platform that has revolutionized the way organizations manage and analyze their data. As the demand for Snowflake continues to grow, so does the need for skilled professionals who can effectively utilize the platform to its fullest potential. This is where the Snowflake COF-C02 (SnowPro Core Certification) Certification Exam comes in.
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