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COF-C02 SnowPro Core Certification Exam Questions and Answers

Questions 4

How can a Snowflake administrator determine which user has accessed a database object that contains sensitive information?

Options:

A.

Review the granted privileges to the database object.

B.

Review the row access policy for the database object.

C.

Query the ACCESS_HlSTORY view in the ACCOUNT_USAGE schema.

D.

Query the REPLICATION USAGE HISTORY view in the ORGANIZATION USAGE schema.

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Questions 5

What tasks can an account administrator perform in the Data Exchange? (Select TWO).

Options:

A.

Add and remove members.

B.

Delete data categories.

C.

Approve and deny listing approval requests.

D.

Transfer listing ownership.

E.

Transfer ownership of a provider profile.

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Questions 6

A user wants to access files stored in a stage without authenticating into Snowflake. Which type of URL should be used?

Options:

A.

File URL

B.

Staged URL

C.

Scoped URL

D.

Pre-signed URL

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Questions 7

Which VALIDATION_MODE value will return the errors across the files specified in a COPY command, including files that were partially loaded during an earlier load?

Options:

A.

RETURN_-1_R0WS

B.

RETURN_n_ROWS

C.

RETURN_ERRORS

D.

RETURN ALL ERRORS

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Questions 8

What are key characteristics of virtual warehouses in Snowflake? (Select TWO).

Options:

A.

Warehouses that are multi-cluster can have nodes of different sizes.

B.

Warehouses can be started and stopped at any time.

C.

Warehouses can be resized at any time, even while running.

D.

Warehouses are billed on a per-minute usage basis.

E.

Warehouses can only be used for querying and cannot be used for data loading.

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Questions 9

Which metadata table will store the storage utilization information even for dropped tables?

Options:

A.

DATABASE_STORAGE_USAGE_HISTORY

B.

TABLE_STORAGE_METRICS

C.

STORAGE_DAILY_HISTORY

D.

STAGE STORAGE USAGE HISTORY

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Questions 10

Which operation can be performed on Snowflake external tables?

Options:

A.

INSERT

B.

JOIN

C.

RENAME

D.

ALTER

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Questions 11

Which commands are restricted in owner's rights stored procedures? (Select TWO).

Options:

A.

SHOW

B.

MERGE

C.

INSERT

D.

DELETE

E.

DESCRIBE

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Questions 12

Which Snowflake feature allows a user to track sensitive data for compliance, discovery, protection, and resource usage?

Options:

A.

Tags

B.

Comments

C.

Internal tokenization

D.

Row access policies

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Questions 13

What does a masking policy consist of in Snowflake?

Options:

A.

A single data type, with one or more conditions, and one or more masking functions

B.

A single data type, with only one condition, and only one masking function

C.

Multiple data types, with only one condition, and one or more masking functions

D.

Multiple data types, with one or more conditions, and one or more masking functions

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Questions 14

What will prevent unauthorized access to a Snowflake account from an unknown source?

Options:

A.

Network policy

B.

End-to-end encryption

C.

Multi-Factor Authentication (MFA)

D.

Role-Based Access Control (RBAC)

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Questions 15

Which privilege must be granted by one role to another role, and cannot be revoked?

Options:

A.

MONITOR

B.

OPERATE

C.

OWNERSHIP

D.

ALL

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Questions 16

Which statements describe benefits of Snowflake's separation of compute and storage? (Select TWO).

Options:

A.

The separation allows independent scaling of computing resources.

B.

The separation ensures consistent data encryption across all virtual data warehouses.

C.

The separation supports automatic conversion of semi-structured data into structured data for advanced data analysis.

D.

Storage volume growth and compute usage growth can be tightly coupled.

E.

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

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Questions 17

Which Snowflake role can manage any object grant globally, including modifying and revoking grants?

Options:

A.

USERADMIN

B.

ORGADMIN

C.

SYSADMIN

D.

SECURITYADMIN

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Questions 18

What Snowflake feature provides a data hub for secure data collaboration, with a selected group of invited members?

Options:

A.

Data Replication

B.

Secure Data Sharing

C.

Data Exchange

D.

Snowflake Marketplace

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Questions 19

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

Options:

A.

10-50 MB

B.

100-250 MB

C.

300-500 MB

D.

1000-1500 MB

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Questions 20

What COPY INTO SQL command should be used to unload data into multiple files?

Options:

A.

SINGLE=TRUE

B.

MULTIPLE=TRUE

C.

MULTIPLE=FALSE

D.

SINGLE=FALSE

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Questions 21

What features that are part of the Continuous Data Protection (CDP) feature set in Snowflake do not require additional configuration? (Choose two.)

Options:

A.

Row level access policies

B.

Data masking policies

C.

Data encryption

D.

Time Travel

E.

External tokenization

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Questions 22

If 3 size Small virtual warehouse is made up of two servers, how many servers make up a Large warehouse?

Options:

A.

4

B.

8

C.

16

D.

32

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Questions 23

By default, which Snowflake role is required to create a share?

Options:

A.

ORGADMIN

B.

SECURITYADMIN

C.

SHAREADMIN

D.

ACCOUNTADMIN

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Questions 24

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

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Questions 25

How does Snowflake Fail-safe protect data in a permanent table?

Options:

A.

Fail-safe makes data available up to 1 day, recoverable by user operations.

B.

Fail-safe makes data available for 7 days, recoverable by user operations.

C.

Fail-safe makes data available for 7 days, recoverable only by Snowflake Support.

D.

Fail-safe makes data available up to 1 day, recoverable only by Snowflake Support.

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Questions 26

What is the MINIMUM edition of Snowflake that is required to use a SCIM security integration?

Options:

A.

Business Critical Edition

B.

Standard Edition

C.

Virtual Private Snowflake (VPS)

D.

Enterprise Edition

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Questions 27

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

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Questions 28

Which views are included in the DATA SHARING USAGE schema? (Select TWO).

Options:

A.

ACCESS_HISTORY

B.

DATA_TRANSFER_HISTORY

C.

WAREHOUSE_METERING_HISTORY

D.

MONETIZED_USAGE_DAILY

E.

LISTING TELEMETRY DAILY

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Questions 29

What does a Notify & Suspend action for a resource monitor do?

Options:

A.

Send an alert notification to all account users who have notifications enabled.

B.

Send an alert notification to all virtual warehouse users when thresholds over 100% have been met.

C.

Send a notification to all account administrators who have notifications enabled, and suspend all assigned warehouses after all statements being executed by the warehouses have completed.

D.

Send a notification to all account administrators who have notifications enabled, and suspend all assigned warehouses immediately, canceling any statements being executed by the warehouses.

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Questions 30

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

Options:

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.

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Questions 31

How should a virtual warehouse be configured if a user wants to ensure that additional multi-clusters are resumed with no delay?

Options:

A.

Configure the warehouse to a size larger than generally required

B.

Set the minimum and maximum clusters to autoscale

C.

Use the standard warehouse scaling policy

D.

Use the economy warehouse scaling policy

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Questions 32

Which command should be used to download files from a Snowflake stage to a local folder on a client's machine?

Options:

A.

PUT

B.

GET

C.

COPY

D.

SELECT

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Questions 33

Which file formats are supported for unloading data from Snowflake? (Choose two.)

Options:

A.

Avro

B.

JSON

C.

ORC

D.

XML

E.

Delimited (CSV, TSV, etc.)

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Questions 34

What are supported file formats for unloading data from Snowflake? (Choose three.)

Options:

A.

XML

B.

JSON

C.

Parquet

D.

ORC

E.

AVRO

F.

CSV

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Questions 35

A company needs to allow some users to see Personally Identifiable Information (PII) while limiting other users from seeing the full value of the PII.

Which Snowflake feature will support this?

Options:

A.

Row access policies

B.

Data masking policies

C.

Data encryption

D.

Role based access control

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Questions 36

Which tasks are performed in the Snowflake Cloud Services layer? (Choose two.)

Options:

A.

Management of metadata

B.

Computing the data

C.

Maintaining Availability Zones

D.

Infrastructure security

E.

Parsing and optimizing queries

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Questions 37

When cloning a database containing stored procedures and regular views, that have fully qualified table references, which of the following will occur?

Options:

A.

The cloned views and the stored procedures will reference the cloned tables in the cloned database.

B.

An error will occur, as views with qualified references cannot be cloned.

C.

An error will occur, as stored objects cannot be cloned.

D.

The stored procedures and views will refer to tables in the source database.

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Questions 38

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

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Questions 39

What are best practice recommendations for using the ACCOUNTADMIN system-defined role in Snowflake? (Choose two.)

Options:

A.

Ensure all ACCOUNTADMIN roles use Multi-factor Authentication (MFA).

B.

All users granted ACCOUNTADMIN role must be owned by the ACCOUNTADMIN role.

C.

The ACCOUNTADMIN role must be granted to only one user.

D.

Assign the ACCOUNTADMIN role to at least two users, but as few as possible.

E.

All users granted ACCOUNTADMIN role must also be granted SECURITYADMIN role.

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Questions 40

Which command can be used to load data files into a Snowflake stage?

Options:

A.

JOIN

B.

COPY INTO

C.

PUT

D.

GET

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Questions 41

A user created a new worksheet within the Snowsight Ul and wants to share this with teammates

How can this worksheet be shared?

Options:

A.

Create a zero-copy clone of the worksheet and grant permissions to teammates

B.

Create a private Data Exchange so that any teammate can use the worksheet

C.

Share the worksheet with teammates within Snowsight

D.

Create a database and grant all permissions to teammates

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Questions 42

Which command should be used to load data from a file, located in an external stage, into a table in Snowflake?

Options:

A.

INSERT

B.

PUT

C.

GET

D.

COPY

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Questions 43

Why does Snowflake recommend file sizes of 100-250 MB compressed when loading data?

Options:

A.

Optimizes the virtual warehouse size and multi-cluster setting to economy mode

B.

Allows a user to import the files in a sequential order

C.

Increases the latency staging and accuracy when loading the data

D.

Allows optimization of parallel operations

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Questions 44

In a Snowflake role hierarchy, what is the top-level role?

Options:

A.

SYSADMIN

B.

ORGADMIN

C.

ACCOUNTADMIN

D.

SECURITYADMIN

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Questions 45

When cloning a database, what is cloned with the database? (Choose two.)

Options:

A.

Privileges on the database

B.

Existing child objects within the database

C.

Future child objects within the database

D.

Privileges on the schemas within the database

E.

Only schemas and tables within the database

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Questions 46

What happens to historical data when the retention period for an object ends?

Options:

A.

The data is cloned into a historical object.

B.

The data moves to Fail-safe

C.

Time Travel on the historical data is dropped.

D.

The object containing the historical data is dropped.

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Questions 47

What affects whether the query results cache can be used?

Options:

A.

If the query contains a deterministic function

B.

If the virtual warehouse has been suspended

C.

If the referenced data in the table has changed

D.

If multiple users are using the same virtual warehouse

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Questions 48

Which services does the Snowflake Cloud Services layer manage? (Choose two.)

Options:

A.

Compute resources

B.

Query execution

C.

Authentication

D.

Data storage

E.

Metadata

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Questions 49

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

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Questions 50

How long is the Fail-safe period for temporary and transient tables?

Options:

A.

There is no Fail-safe period for these tables.

B.

1 day

C.

7 days

D.

31 days

E.

90 days

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Questions 51

What is the minimum Snowflake edition required to use Dynamic Data Masking?

Options:

A.

Standard

B.

Enterprise

C.

Business Critical

D.

Virtual Private Snowflake (VPC)

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Questions 52

Which methods can be used to delete staged files from a Snowflake stage? (Choose two.)

Options:

A.

Use the DROP command after the load completes.

B.

Specify the TEMPORARY option when creating the file format.

C.

Specify the PURGE copy option in the COPY INTO <title> command.

D.

Use the REMOVE command after the load completes.

E.

Use the DELETE LOAD HISTORY command after the load completes.

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Questions 53

What occurs 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 command is executed.

C.

The stage will be purged.

D.

The destination table is truncated.

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Questions 54

Which Snowflake function will interpret an input string as a JSON document, and produce a VARIANT value?

Options:

A.

parse_json()

B.

json_extract_path_text()

C.

object_construct()

D.

flatten

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Questions 55

Which minimum Snowflake edition allows for a dedicated metadata store?

Options:

A.

Standard

B.

Enterprise

C.

Business Critical

D.

Virtual Private Snowflake

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Questions 56

Which Snowflake function will parse a JSON-null into a SQL-null?

Options:

A.

TO_CHAR

B.

TO_VARIANT

C.

TO_VARCHAR

D.

STRIP NULL VALUE

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Questions 57

What is the purpose of a Query Profile?

Options:

A.

To profile how many times a particular query was executed and analyze its u^age statistics over time.

B.

To profile a particular query to understand the mechanics of the query, its behavior, and performance.

C.

To profile the user and/or executing role of a query and all privileges and policies applied on the objects within the query.

D.

To profile which queries are running in each warehouse and identify proper warehouse utilization and sizing for better performance and cost balancing.

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Questions 58

Which Snowflake table objects can be shared with other accounts? (Select TWO).

Options:

A.

Temporary tables

B.

Permanent tables

C.

Transient tables

D.

External tables

E.

User-Defined Table Functions (UDTFs)

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Questions 59

What does SnowCD help Snowflake users to do?

Options:

A.

Copy data into files.

B.

Manage different databases and schemas.

C.

Troubleshoot network connections to Snowflake.

D.

Write SELECT queries to retrieve data from external tables.

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Questions 60

When working with a managed access schema, who has the OWNERSHIP privilege of any tables added to the schema?

Options:

A.

The database owner

B.

The object owner

C.

The schema owner

D.

The Snowflake user's role

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Questions 61

Which Snowflake feature provides increased login security for users connecting to Snowflake that is powered by Duo Security service?

Options:

A.

OAuth

B.

Network policies

C.

Single Sign-On (SSO)

D.

Multi-Factor Authentication (MFA)

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Questions 62

Which type of loop requires a BREAK statement to stop executing?

Options:

A.

FOR

B.

LOOP

C.

REPEAT

D.

WHILE

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Questions 63

Which solution improves the performance of point lookup queries that return a small number of rows from large tables using highly selective filters?

Options:

A.

Automatic clustering

B.

Materialized views

C.

Query acceleration service

D.

Search optimization service

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Questions 64

Which Snowflake object does not consume any storage costs?

Options:

A.

Secure view

B.

Materialized view

C.

Temporary table

D.

Transient table

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Questions 65

A single user of a virtual warehouse has set the warehouse to auto-resume and auto-suspend after 10 minutes. The warehouse is currently suspended and the user performs the following actions:

1. Runs a query that takes 3 minutes to complete

2. Leaves for 15 minutes

3. Returns and runs a query that takes 10 seconds to complete

4. Manually suspends the warehouse as soon as the last query was completed

When the user returns, how much billable compute time will have been consumed?

Options:

A.

4 minutes

B.

10 minutes

C.

14 minutes

D.

24 minutes

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Questions 66

What is the purpose of the Snowflake SPLIT TO_TABLE function?

Options:

A.

To count the number of characters in a string

B.

To split a string into an array of sub-strings

C.

To split a string and flatten the results into rows

D.

To split a string and flatten the results into columns

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Questions 67

What metadata does Snowflake store for rows in micro-partitions? (Select TWO).

Options:

A.

Range of values

B.

Distinct values

C.

Index values

D.

Sorted values

E.

Null values

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Questions 68

What feature of Snowflake Continuous Data Protection can be used for maintenance of historical data?

Options:

A.

Access control

B.

Fail-safe

C.

Network policies

D.

Time Travel

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Questions 69

Which function unloads data from a relational table to JSON?

Options:

A.

TO_OBJECT

B.

TO_JSON

C.

TO_VARIANT

D.

OBJECT CONSTRUCT

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Questions 70

A tag object has been assigned to a table (TABLE_A) in a schema within a Snowflake database.

Which CREATE object statement will automatically assign the TABLE_A tag to a target object?

Options:

A.

CREATE TABLE <title_name> LIKE TABLE_A;

B.

CREATE VIEW AS SELECT * FROM TABLE_A;

C.

CREATE TABLE <title_name> AS SELECT * FROM TABLE_A;

D.

CREATE MATERIALIZED VIEW AS SELECT * FROM TABLE A;

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Questions 71

What is the primary purpose of a directory table in Snowflake?

Options:

A.

To store actual data from external stages

B.

To automatically expire file URLs for security

C.

To manage user privileges and access control

D.

To store file-level metadata about data files in a stage

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Questions 72

Which Snowflake function is maintained separately from the data and helps to support features such as Time Travel, Secure Data Sharing, and pruning?

Options:

A.

Column compression

B.

Data clustering

C.

Micro-partitioning

D.

Metadata management

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Questions 73

For which use cases is running a virtual warehouse required? (Select TWO).

Options:

A.

When creating a table

B.

When loading data into a table

C.

When unloading data from a table

D.

When executing a show command

E.

When executing a list command

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Questions 74

How can a dropped internal stage be restored?

Options:

A.

Enable Time Travel.

B.

Clone the dropped stage.

C.

Execute the UNDROP command.

D.

Recreate the dropped stage.

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Questions 75

A permanent table and temporary table have the same name, TBL1, in a schema.

What will happen if a user executes select * from TBL1 ;?

Options:

A.

The temporary table will take precedence over the permanent table.

B.

The permanent table will take precedence over the temporary table.

C.

An error will say there cannot be two tables with the same name in a schema.

D.

The table that was created most recently will take precedence over the older table.

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Questions 76

How should clustering be used to optimize the performance of queries that run on a very large table?

Options:

A.

Manually re-cluster the table regularly.

B.

Choose one high cardinality column as the clustering key.

C.

Use the column that is most-frequently used in query select clauses as the clustering key.

D.

Assess the average table depth to identify how clustering is impacting the query.

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Questions 77

Which statistics can be used to identify queries that have inefficient pruning? (Select TWO).

Options:

A.

Bytes scanned

B.

Bytes written to result

C.

Partitions scanned

D.

Partitions total

E.

Percentage scanned from cache

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Questions 78

What type of query will benefit from the query acceleration service?

Options:

A.

Queries without filters or aggregation

B.

Queries with large scans and selective filters

C.

Queries where the GROUP BY has high cardinality

D.

Queries of tables that have search optimization service enabled

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Questions 79

Which command is used to unload data from a Snowflake database table into one or more files in a Snowflake stage?

Options:

A.

CREATE STAGE

B.

COPY INTO <title>

C.

COPY INTO

D.

CREATE PIPE

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Questions 80

Which Snowflake data types can be used to build nested hierarchical data? (Select TWO)

Options:

A.

INTEGER

B.

OBJECT

C.

VARIANT

D.

VARCHAR

E.

LIST

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Questions 81

Which of the following objects are contained within a schema? (Choose two.)

Options:

A.

Role

B.

Stream

C.

Warehouse

D.

External table

E.

User

F.

Share

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Questions 82

True or False: Snowpipe via REST API can only reference External Stages as source.

Options:

A.

True

B.

False

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Questions 83

What is the maximum total Continuous Data Protection (CDP) charges incurred for a temporary table?

Options:

A.

30 days

B.

7 days

C.

48 hours

D.

24 hours

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Questions 84

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

Options:

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

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Questions 85

Which of the following statements describe features of Snowflake data caching? (Choose two.)

Options:

A.

When a virtual warehouse is suspended, the data cache is saved on the remote storage layer.

B.

When the data cache is full, the least-recently used data will be cleared to make room.

C.

A user can only access their own queries from the query result cache.

D.

A user must set USE_METADATA_CACHE to TRUE to use the metadata cache in queries.

E.

The RESULT_SCAN table function can access and filter the contents of the query result cache.

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Questions 86

What versions of Snowflake should be used to manage compliance with Personal Identifiable Information (PII) requirements? (Choose two.)

Options:

A.

Custom Edition

B.

Virtual Private Snowflake

C.

Business Critical Edition

D.

Standard Edition

E.

Enterprise Edition

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Questions 87

Which of the following is a data tokenization integration partner?

Options:

A.

Protegrity

B.

Tableau

C.

DBeaver

D.

SAP

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Questions 88

Which Snowflake feature allows a user to substitute a randomly generated identifier for sensitive data, in order to prevent unauthorized users access to the data, before loading it into Snowflake?

Options:

A.

External Tokenization

B.

External Tables

C.

Materialized Views

D.

User-Defined Table Functions (UDTF)

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Questions 89

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

Options:

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 ADD ROW ACCESS POLICY ;

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