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COF-C02 Practice Questions

SnowPro Core Certification Exam

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Total Questions : 948

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Question # 181

How does Snowflake define i1s approach to Discretionary Access Control (DAC)?

Options:

A.  

A defined level of access to an object

B.  

An entity in which access can be granted

C.  

Each object has an owner, who can in turn grail access to that object.

D.  

Access privileges are assigned to roles. which are in turn assigned to use's

Discussion 0
Question # 182

Two multi-cluster virtual warehouses were created — one with an AUTO_SUSPEND = 0 parameter setting, and the other with an AUTO_SUSPEND = NULL setting.

What is the expected behavior of these warehouses?

Options:

A.  

A setting of = 0 indicates that the warehouse will stop immediately; the = NULL setting means the warehouse will remain active indefinitely.

B.  

Settings of = 0 or = NULL indicate that the warehouses will remain active indefinitely.

C.  

0 or = NULL indicate that the warehouses will suspend immediately after becoming idle.

D.  

NULL indicates that the warehouses will stop after a default period of 600 seconds.

Discussion 0
Question # 183

Which strategy is recommended to improve the performance of a large, complex query?

Options:

A.  

Add more storage

B.  

Convert to a multi-cluster warehouse

C.  

Increase the size of the warehouse

D.  

Run the query during off-peak hours

Discussion 0
Question # 184

When unloading data: which file formal will keep floating-point number column data without truncating it?

Options:

A.  

XML

B.  

JSON

C.  

Parquet

D.  

CSV

Discussion 0
Question # 185

What objects can be cloned within Snowflake? (Select TWO).

Options:

A.  

Schemas

B.  

Users

C.  

External tables

D.  

Internal named stages

E.  

External named stages

Discussion 0
Question # 186

What metadata does Snowflake store concerning all rows stored in a micro-partition? (Select TWO).

Options:

A.  

A count of the number of total values in the micro-partition

B.  

The range of values for each partition in the micro-partition

C.  

The range of values for each of the rows in the micro-partition

D.  

The range of values for each of the columns in the micro-partition

E.  

The number of distinct values for each column in the micro-partition

Discussion 0
Question # 187

A query against which table will provide details about bytes consumed by active, Time Travel, and Fail-safe storage?

Options:

A.  

METERING_HISTORY

B.  

DATA_TRANSFER_HISTORY

C.  

CREDIT_USAGE_HISTORY

D.  

TABLE_STORAGE_METRICS

Discussion 0
Question # 188

What does the Activity area of Snowsight allow users to do? (Select TWO).

Options:

A.  

Schedule automated data backups.

B.  

Explore each step of an executed query.

C.  

Monitor queries executed by users in an account.

D.  

Create and manage user roles and permissions.

E.  

Access Snowflake Marketplace to find and integrate datasets.

Discussion 0
Question # 189

What is a non-configurable feature that provides historical data that Snowflake may recover during a 7-day period?

Options:

A.  

Fail-safe

B.  

Time Travel

C.  

Cloning

D.  

Account replication

Discussion 0
Question # 190

What MINIMUM permissions are required to create a pipe in Snowflake? (Select TWO).

Options:

A.  

CREATE PIPE at the schema level

B.  

SELECT and INSERT on the table in the pipe definition

C.  

CREATE SCHEMA at the database level

D.  

USAGE on the virtual warehouse

E.  

OWNERSHIP on the table in the pipe definition

Discussion 0
Question # 191

The Query Profile shows the metrics of a query that ran on a size Large virtual warehouse.

What steps will improve the query performance? (Select TWO).

Options:

A.  

Increase the MAX_CLUSTER_COUNT.

B.  

Increase the WAREHOUSE_SIZ

E.  

C.  

Update the query WHERE clause.

D.  

Increase the warehouse AUTO_SUSPEND duration.

E.  

Run the warehouse in Maximized mode.

Discussion 0
Question # 192

Which table type is used in the file processing pipeline to process unstructured data in Snowflake?

Options:

A.  

Temporary

B.  

Directory

C.  

Standard

D.  

Transient

Discussion 0
Question # 193

Which Snowflake database object can be shared with other accounts?

Options:

A.  

Tasks

B.  

Pipes

C.  

Secure User-Defined Functions (UDFs)

D.  

Stored Procedures

Discussion 0
Question # 194

Given the statement template below, which database objects can be added to a share?(Select TWO).

GRANT ON To SHARE ;

Options:

A.  

Secure functions

B.  

Stored procedures

C.  

Streams

D.  

Tables

E.  

Tasks

Discussion 0
Question # 195

Which function should be used to insert JSON format string data inot a VARIANT field?

Options:

A.  

FLATTEN

B.  

CHECK_JSON

C.  

PARSE_JSON

D.  

TO_VARIANT

Discussion 0
Question # 196

What are valid sub-clauses to the OVER clause for a window function? (Select TWO).

Options:

A.  

GROUP BY

B.  

LIMIT

C.  

ORDER BY

D.  

PARTITION BY

E.  

UNION ALL

Discussion 0
Question # 197

If a virtual warehouse runs for 61 seconds, shut down, and then restart and runs for 30 seconds, for how many seconds is it billed?

Options:

A.  

60

B.  

91

C.  

120

D.  

121

Discussion 0
Question # 198

Which privilege is required to use the search optimization service in Snowflake?

Options:

A.  

GRANT SEARCH OPTIMIZATION ON SCHEMA TO ROLE

B.  

GRANT SEARCH OPTIMIZATION ON DATABASE TO ROLE

C.  

GRANT ADD SEARCH OPTIMIZATION ON SCHEMA TO ROLE

D.  

GRANT ADD SEARCH OPTIMIZATION ON DATABASE TO ROLE

Discussion 0
Question # 199

When unloading data, which file format preserves the data values for floating-point number columns?

Options:

A.  

Avro

B.  

CSV

C.  

JSON

D.  

Parquet

Discussion 0
Question # 200

What are characteristics of transient tables in Snowflake? (Select TWO).

Options:

A.  

Transient tables have a Fail-safe period of 7 days.

B.  

Transient tables can be cloned to permanent tables.

C.  

Transient tables persist until they are explicitly dropped.

D.  

Transient tables can be altered to make them permanent tables.

E.  

Transient tables have Time Travel retention periods of 0 or 1 day.

Discussion 0
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