2023 Latest 100% Exam Passing Ratio - COF-C02 Dumps PDF
Pass Exam With Full Sureness - COF-C02 Dumps with 265 Questions
Snowflake COF-C02 Exam Syllabus Topics:
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NEW QUESTION 126
Data storage for individual tables can be monitored using which commands and/or objects? (Choose two.)
- A. SHOW TABLES;
- B. SHOW STORAGE BY TABLE;
- C. Information Schema -> TABLE_STORAGE_METRICS
- D. Information Schema -> TABLE_HISTORY
- E. Information Schema -> TABLE_FUNCTION
Answer: B,C
NEW QUESTION 127
True or False: Once created, a micro-partition will never be changed.
- A. True
- B. False
Answer: A
NEW QUESTION 128
Which of the following can be used when unloading data from Snowflake? (Choose two.)
- A. By using the SINGLE = TRUE parameter, a single file up to 5 GB in size can be exported to the storage layer.
- B. The OBJECT_CONSTRUCT function can be used to convert relational data to semi-structured data.
- C. Use the ENCODING file format option to change the encoding from the default UTF-8.
- D. Use the PARSE_JSON function to ensure structured data will be unloaded into the VARIANT data type.
- E. When unloading semi-structured data, it is recommended that the STRIP_OUTER_ARRAY option be used.
Answer: A,E
NEW QUESTION 129
True or False: An active warehouse is required to run a COPY INTO statement.
- A. True
- B. False
Answer: A
NEW QUESTION 130
True or False: Loading data into Snowflake requires that source data files be no larger than 16MB.
- A. True
- B. False
Answer: B
NEW QUESTION 131
Which of the following describes a Snowflake stored procedure?
- A. They can be created as secure and hide the underlying metadata from the user.
- B. They can contain only a single SQL statement.
- C. They can only access tables from a single database.
- D. They can be created to run with a caller's rights or an owner's rights.
Answer: A
NEW QUESTION 132
A deterministic query is run at 8am, takes 5 minutes, and the results are cached.
Which of the following statements are true? Choose 2 answers
- A. The same exact query will return the precomputed results if the underlying data hasn't changed and the results were last accessed within the previous 24 hour period
- B. The ''24 hour'' on the percomputed results gets renewed every time the exact query is executed
- C. The exact query win ALWAYS return me precomputed result set for the RESULT_CACHE_ACTIVE = time period
- D. The same exact query will return the precomputed results even if the underlying data has changed as long as the results were last accessed within the previous
Answer: A,B
NEW QUESTION 133
A sales table FCT_SALES has 100 million records.
The following Query was executed
SELECT COUNT (1) FROM FCT__SALES;
How did Snowflake fulfill this query?
- A. Query against a virtual warehouse cache
- B. Query against the metadata excite
- C. Query against the most-recently created micro-partition
- D. Query against the result set cache
Answer: B
NEW QUESTION 134
True or False: Pipes can be suspended and resumed.
- A. True
- B. False
Answer: A
NEW QUESTION 135
What is the recommended method for loading data into Snowflake?
- A. Load data in batch
- B. Load data via frequent, angle row DML's
- C. Load data by writing it In the Snowflake Web Interface (UI)
- D. Load row by row
Answer: A
NEW QUESTION 136
Fail-safe is unavailable on which table types?
- A. Permanent
- B. Transient
- C. Temporary
- D. Provisional
Answer: B,C
NEW QUESTION 137
Which semi-structured file formats are supported when unloading data from a table? (Select TWO).
- A. Parquet
- B. XML
- C. ORC
- D. JSON
- E. Avro
Answer: A,D
Explanation:
Semi-structured
JSON, Parquet
https://docs.snowflake.com/en/user-guide/data-unload-prepare.html#:~:text=Supported%20File%20Formats,-The%20following%20file&text=Delimited%20(CSV%2C%20TSV%2C%20etc.)
NEW QUESTION 138
Which data types does Snowflake support when querying semi-structured data? (Select TWO)
- A. VARCHAR
- B. ARRAY
- C. VARIANT
- D. XML
- E. BLOB
Answer: B,C
Explanation:
https://docs.snowflake.com/en/user-guide/semistructured-intro.html#label-loading-semi-structured-data A VARIANT stores semi-structured data in Snowflake. It can store a value of any other type, including OBJECT and ARRAY.
The maximum length of a VARIANT is 16 MB.
A Snowflake ARRAY is similar to an array in many other programming languages. An ARRAY contains 0 or more pieces of data. Each element is accessed by specifying its position in the array.
NEW QUESTION 139
Which Snowflake object enables loading data from files as soon as they are available in a cloud storage location?
- A. External stage
- B. Pipe
- C. Stream
- D. Task
Answer: B
NEW QUESTION 140
Which of the following languages can be used to implement Snowflake User Defined Functions (UDFs)? Choose 2 answers
- A. JavaScript
- B. Python
- C. Java
- D. SQL
Answer: A,D
NEW QUESTION 141
What is a machine learning and data science partner within the Snowflake Partner Ecosystem?
- A. Data Robot
- B. Informatica
- C. Adobe
- D. Power Bl
Answer: A
Explanation:
https://docs.snowflake.com/en/user-guide/ecosystem-analytics.html
NEW QUESTION 142
Which cache type is used to cache data output from SQL queries?
- A. Result cache
- B. Metadata cache
- C. Remote cache
- D. Local file cache
Answer: A
NEW QUESTION 143
Which of the following features, associated with Continuous Data Protection (CDP), require additional Snowflake-provided data storage? (Choose two.)
- A. Data encryption
- B. Fail-safe
- C. Tri-Secret Secure
- D. External stages
- E. Time Travel
Answer: B,E
NEW QUESTION 144
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