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Free and Premium Snowflake COF-R02 Dumps Questions Answers

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Total 330 questions

SnowPro Core Recertification Exam Questions and Answers

Question 1

What is the recommended compressed file size range for continuous data loads using Snowpipe?

Options:

A.

8-16 MB

B.

16-24 MB

C.

10-99 MB

D.

100-250 MB

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Question 2

Which privilege must be granted to a share to allow secure views the ability to reference data in multiple databases?

Options:

A.

CREATE_SHARE on the account

B.

SHARE on databases and schemas

C.

SELECT on tables used by the secure view

D.

REFERENCE_USAGE on databases

Question 3

What is the following SQL command used for?

Select * from table(validate(t1, job_id => '_last'));

Options:

A.

To validate external table files in table t1 across all sessions

B.

To validate task SQL statements against table t1 in the last 14 days

C.

To validate a file for errors before it gets executed using a COPY command

D.

To return errors from the last executed COPY command into table t1 in the current session

Question 4

Which of the following statements describes a schema in Snowflake?

Options:

A.

A logical grouping of objects that belongs to a single database

B.

A logical grouping of objects that belongs to multiple databases

C.

A named Snowflake object that includes all the information required to share a database

D.

A uniquely identified Snowflake account within a business entity

Question 5

What do the terms scale up and scale out refer to in Snowflake? (Choose two.)

Options:

A.

Scaling out adds clusters of the same size to a virtual warehouse to handle more concurrent queries.

B.

Scaling out adds clusters of varying sizes to a virtual warehouse.

C.

Scaling out adds additional database servers to an existing running cluster to handle more concurrent queries.

D.

Snowflake recommends using both scaling up and scaling out to handle more concurrent queries.

E.

Scaling up resizes a virtual warehouse so it can handle more complex workloads.

F.

Scaling up adds additional database servers to an existing running cluster to handle larger workloads.

Question 6

A Snowflake user executed a query and received the results. Another user executed the same query 4 hours later. The data had not changed.

What will occur?

Options:

A.

No virtual warehouse will be used, data will be read from the result cache.

B.

No virtual warehouse will be used, data will be read from the local disk cache.

C.

The default virtual warehouse will be used to read all data.

D.

The virtual warehouse that is defined at the session level will be used to read all data.

Question 7

What type of query benefits the MOST from search optimization?

Options:

A.

A query that uses only disjunction (i.e., OR) predicates

B.

A query that includes analytical expressions

C.

A query that uses equality predicates or predicates that use IN

D.

A query that filters on semi-structured data types

Question 8

Which columns are part of the result set of the Snowflake LATERAL FLATTEN command? (Choose two.)

Options:

A.

CONTENT

B.

PATH

C.

BYTE_SIZE

D.

INDEX

E.

DATATYPE

Question 9

Which statements reflect key functionalities of a Snowflake Data Exchange? (Choose two.)

Options:

A.

If an account is enrolled with a Data Exchange, it will lose its access to the Snowflake Marketplace.

B.

A Data Exchange allows groups of accounts to share data privately among the accounts.

C.

A Data Exchange allows accounts to share data with third, non-Snowflake parties.

D.

Data Exchange functionality is available by default in accounts using the Enterprise edition or higher.

E.

The sharing of data in a Data Exchange is bidirectional. An account can be a provider for some datasets and a consumer for others.

Question 10

Snowflake supports the use of external stages with which cloud platforms? (Choose three.)

Options:

A.

Amazon Web Services

B.

Docker

C.

IBM Cloud

D.

Microsoft Azure Cloud

E.

Google Cloud Platform

F.

Oracle Cloud

Question 11

What is the maximum Time Travel retention period for a temporary Snowflake table?

Options:

A.

90 days

B.

1 day

C.

7 days

D.

45 days

Question 12

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

Options:

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

Question 13

In the Snowflake access control model, which entity owns an object by default?

Options:

A.

The user who created the object

B.

The SYSADMIN role

C.

Ownership depends on the type of object

D.

The role used to create the object

Question 14

Files have been uploaded to a Snowflake internal stage. The files now need to be deleted.

Which SQL command should be used to delete the files?

Options:

A.

PURGE

B.

MODIFY

C.

REMOVE

D.

DELETE

Question 15

When loading data into Snowflake, how should the data be organized?

Options:

A.

Into single files with 100-250 MB of compressed data per file

B.

Into single files with 1-100 MB of compressed data per file

C.

Into files of maximum size of 1 GB of compressed data per file

D.

Into files of maximum size of 4 GB of compressed data per file

Question 16

Which SQL command can be used to see the CREATE definition of a masking policy?

Options:

A.

SHOW MASKING POLICIES

B.

DESCRIBE MASKING POLICY

C.

GET_DDL

D.

LIST MASKING POLICIES

Question 17

Which Snowflake SQL statement would be used to determine which users and roles have access to a role called MY_ROLE?

Options:

A.

SHOW GRANTS OF ROLE MY_ROLE

B.

SHOW GRANTS TO ROLE MY_ROLE

C.

SHOW GRANTS FOR ROLE MY_ROLE

D.

SHOW GRANTS ON ROLE MY_ROLE

Question 18

Which is the MINIMUM required Snowflake edition that a user must have if they want to use AWS/Azure Privatelink or Google Cloud Private Service Connect?

Options:

A.

Standard

B.

Premium

C.

Enterprise

D.

Business Critical

Question 19

What are the default Time Travel and Fail-safe retention periods for transient tables?

Options:

A.

Time Travel - 1 day. Fail-safe - 1 day

B.

Time Travel - 0 days. Fail-safe - 1 day

C.

Time Travel - 1 day. Fail-safe - 0 days

D.

Transient tables are retained in neither Fail-safe nor Time Travel

Question 20

True or False: When you create a custom role, it is a best practice to immediately grant that role to ACCOUNTADMIN.

Options:

A.

True

B.

False

Question 21

When is the result set cache no longer available? (Select TWO)

Options:

A.

When another warehouse is used to execute the query

B.

When another user executes the query

C.

When the underlying data has changed

D.

When the warehouse used to execute the query is suspended

E.

When it has been 24 hours since the last query

Question 22

When reviewing a query profile, what is a symptom that a query is too large to fit into the memory?

Options:

A.

A single join node uses more than 50% of the query time

B.

Partitions scanned is equal to partitions total

C.

An AggregateOperacor node is present

D.

The query is spilling to remote storage

Question 23

Which data type can be used to store geospatial data in Snowflake?

Options:

A.

Variant

B.

Object

C.

Geometry

D.

Geography

Question 24

What is a limitation of a Materialized View?

Options:

A.

A Materialized View cannot support any aggregate functions

B.

A Materialized View can only reference up to two tables

C.

A Materialized View cannot be joined with other tables

D.

A Materialized View cannot be defined with a JOIN

Question 25

What is the default File Format used in the COPY command if one is not specified?

Options:

A.

CSV

B.

JSON

C.

Parquet

D.

XML

Question 26

What is the recommended file sizing for data loading using Snowpipe?

Options:

A.

A compressed file size greater than 100 MB, and up to 250 MB

B.

A compressed file size greater than 100 GB, and up to 250 GB

C.

A compressed file size greater than 10 MB, and up to 100 MB

D.

A compressed file size greater than 1 GB, and up to 2 GB

Question 27

What feature can be used to reorganize a very large table on one or more columns?

Options:

A.

Micro-partitions

B.

Clustering keys

C.

Key partitions

D.

Clustered partitions

Question 28

Which Snowflake objects track DML changes made to tables, like inserts, updates, and deletes?

Options:

A.

Pipes

B.

Streams

C.

Tasks

D.

Procedures

Question 29

What happens when a virtual warehouse is resized?

Options:

A.

When increasing the size of an active warehouse the compute resource for all running and queued queries on the warehouse are affected

B.

When reducing the size of a warehouse the compute resources are removed only when they are no longer being used to execute any current statements.

C.

The warehouse will be suspended while the new compute resource is provisioned and will resume automatically once provisioning is complete.

D.

Users who are trying to use the warehouse will receive an error message until the resizing is complete

Question 30

In which scenarios would a user have to pay Cloud Services costs? (Select TWO).

Options:

A.

Compute Credits = 50 Credits Cloud Services = 10

B.

Compute Credits = 80 Credits Cloud Services = 5

C.

Compute Credits = 10 Credits Cloud Services = 9

D.

Compute Credits = 120 Credits Cloud Services = 10

E.

Compute Credits = 200 Credits Cloud Services = 26

Question 31

Which copy INTO command outputs the data into one file?

Options:

A.

SINGLE=TRUE

B.

MAX_FILE_NUMBER=1

C.

FILE_NUMBER=1

D.

MULTIPLE=FAISE

Question 32

What tasks can be completed using the copy command? (Select TWO)

Options:

A.

Columns can be aggregated

B.

Columns can be joined with an existing table

C.

Columns can be reordered

D.

Columns can be omitted

E.

Data can be loaded without the need to spin up a virtual warehouse

Question 33

True or False: Fail-safe can be disabled within a Snowflake account.

Options:

A.

True

B.

False

Question 34

When unloading to a stage, which of the following is a recommended practice or approach?

Options:

A.

Set SINGLE: = true for larger files

B.

Use OBJECT_CONSTRUCT ( * ) when using Parquet

C.

Avoid the use of the CAST function

D.

Define an individual file format

Question 35

The PUT command: (Choose two.)

Options:

A.

Automatically creates a File Format object

B.

Automatically uses the last Stage created

C.

Automatically compresses files using Gzip

D.

Automatically encrypts files

Question 36

What is the minimum Snowflake edition that customers planning on storing protected information in Snowflake should consider for regulatory compliance?

Options:

A.

Standard

B.

Premier

C.

Enterprise

D.

Business Critical Edition

Question 37

When a Pipe is recreated using the CREATE OR REPLACE PIPE command:

Options:

A.

The Pipe load history is reset to empty

B.

The REFRESH parameter is set to TRUE

C.

Previously loaded files will be ignored

D.

All of the above

Question 38

Which type of table corresponds to a single Snowflake session?

Options:

A.

Temporary

B.

Translent

C.

Provisional

D.

Permanent

Question 39

True or False: Some queries can be answered through the metadata cache and do not require an active Virtual Warehouse.

Options:

A.

True

B.

False

Question 40

Which of the following objects can be cloned? (Choose four.)

Options:

A.

Tables

B.

Named File Formats

C.

Schemas

D.

Shares

E.

Databases

F.

Users

Question 41

Which of the following objects is not covered by Time Travel?

Options:

A.

Tables

B.

Schemas

C.

Databases

D.

Stages

Question 42

True or False: A Snowflake account is charged for data stored in both Internal and External Stages.

Options:

A.

True

B.

False

Question 43

True or False: A single database can exist in more than one Snowflake account.

Options:

A.

True

B.

False

Question 44

Select the different types of Internal Stages: (Choose three.)

Options:

A.

Named Stage

B.

User Stage

C.

Table Stage

D.

Schema Stage

Question 45

True or False: When a new Snowflake object is created, it is automatically owned by the user who created it.

Options:

A.

True

B.

False

Question 46

Which of the following statements are true of Virtual Warehouses? (Choose all that apply.)

Options:

A.

Customers can change the size of the Warehouse after creation

B.

A Warehouse can be resized while running

C.

A Warehouse can be configured to suspend after a period of inactivity

D.

A Warehouse can be configured to auto-resume when new queries are submitted

Question 47

Which of the following statements describes a benefit of Snowflake’s separation of compute and storage?

(Choose all that apply.)

Options:

A.

Growth of storage and compute are tightly coupled together

B.

Storage expands without the requirement to add more compute

C.

Compute can be scaled up or down without the requirement to add more storage

D.

Multiple compute clusters can access stored data without contention

Question 48

True or False: During data unloading, only JSON and CSV files can be compressed.

Options:

A.

True

B.

False

Question 49

What privileges are required to create a task?

Options:

A.

The global privilege create task is required to create a new task.

B.

Tasks are created at the Application level and can only be created by the Account Admin role.

C.

Many Snowflake DDLs are metadata operations only, and create task DDL can be executed without virtual warehouse requirement or task specific grants.

D.

The role must have access to the target schema and the create task privilege on the schema itself.

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Total 330 questions