COF-C02 Exam Questions

Total 498 Questions

Last Updated Exam : 27-Dec-2024

Topic 2: Exam pool B

The Snowflake Cloud Data Platform is described as having which of the following
architectures?


A.

Shared-disk


B.

Shared-nothing


C.

Multi-cluster shared data


D.

Serverless query engine





C.
  

Multi-cluster shared data



Which statements are true concerning Snowflake's underlying cloud infrastructure? (Select THREE),


A.

Snowflake data and services are deployed in a single availability zone within a cloud provider's region.


B.

Snowflake data and services are available in a single cloud provider and a single region, the use of multiple cloud providers is not supported.


C.

Snowflake can be deployed in a customer's private cloud using the customer's own compute and storage resources for Snowflake compute and storage


D.

Snowflake uses the core compute and storage services of each cloud provider for its own compute and storage


E.

All three layers of Snowflake's architecture (storage, compute, and cloud services) are deployed and managed entirely on a selected cloud platform


F.

Snowflake data and services are deployed in at least three availability zones within a cloud provider's region





D.
  

Snowflake uses the core compute and storage services of each cloud provider for its own compute and storage



E.
  

All three layers of Snowflake's architecture (storage, compute, and cloud services) are deployed and managed entirely on a selected cloud platform



F.
  

Snowflake data and services are deployed in at least three availability zones within a cloud provider's region



How can a row access policy be applied to a table or a view? (Choose two.)


A.

Within the policy DDL


B.

Within the create table or create view DDL


C.

By future APPLY for all objects in a schema


D.

Within a control table


E.

Using the command ALTER <object> ADD ROW ACCESS POLICY <policy>;





B.
  

Within the create table or create view DDL



D.
  

Within a control table



When loading data into Snowflake via Snowpipe what is the compressed file size recommendation?


A.

10-50 MB


B.

100-250 MB


C.

300-500 MB


D.

1000-1500 MB





B.
  

100-250 MB



What is an advantage of using an explain plan instead of the query profiler to evaluate the performance of a query?


A.

The explain plan output is available graphically.


B.

An explain plan can be used to conduct performance analysis without executing a query.


C.

An explain plan will handle queries with temporary tables and the query profiler will not.


D.

An explain plan's output will display automatic data skew optimization information.





B.
  

An explain plan can be used to conduct performance analysis without executing a query.



What are the correct parameters for time travel and fail-safe in the Snowflake Enterprise Edition?


A.

Default Time Travel Retention is set to 0 days.
Maximum Time Travel Retention is 30 days.
Fail Safe retention time is 1 day.


B.

Default Time Travel Retention is set to 1 day.
Maximum Time Travel Retention is 365 days.
Fail Safe retention time is 7 days.


C.

Default Time Travel Retention is set to 0 days.
Maximum Time Travel Retention is 90 days.
Fail Safe retention time is 7 days.


D.

Default Time Travel Retention is set to 1 day.
Maximum Time Travel Retention is 90 days.
Fail Safe retention time is 7 days.


E.

Default Time Travel Retention is set to 7 days.
Maximum Time Travel Retention is 1 day.
Fail Safe retention time is 90 days.


F.

Default Time Travel Retention is set to 90 days.
Maximum Time Travel Retention is 7 days.
Fail Safe retention time is 356 days.





D.
  

Default Time Travel Retention is set to 1 day.
Maximum Time Travel Retention is 90 days.
Fail Safe retention time is 7 days.



In an auto-scaling multi-cluster virtual warehouse with the setting SCALING_POLICY = ECONOMY enabled, when is another cluster started?


A.

When the system has enough load for 2 minutes


B.

When the system has enough load for 6 minutes


C.

When the system has enough load for 8 minutes


D.

When the system has enough load for 10 minutes





D.
  

When the system has enough load for 10 minutes



Which SQL commands, when committed, will consume a stream and advance the stream offset? (Choose two.)


A.

UPDATE TABLE FROM STREAM


B.

SELECT FROM STREAM


C.

INSERT INTO TABLE SELECT FROM STREAM


D.

ALTER TABLE AS SELECT FROM STREAM


E.

BEGIN COMMIT





C.
  

INSERT INTO TABLE SELECT FROM STREAM



D.
  

ALTER TABLE AS SELECT FROM STREAM



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 only access tables from a single database.


C.

They can contain only a single SQL statement.


D.

They can be created to run with a caller's rights or an owner's rights.





A.
  

They can be created as secure and hide the underlying metadata from the user.



https://docs.snowflake.com/en/sql-reference/stored-procedures-overview.html

A user is preparing to load data from an external stage. Which practice will provide the MOST efficient loading performance?


A.

Organize files into logical paths


B.

Store the files on the external stage to ensure caching is maintained


C.

Use pattern matching for regular expression execution


D.

Load the data in one large file





D.
  

Load the data in one large file




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