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  • Exam Name: SnowPro Advanced: Data Engineer Certification Exam
  • Last Update: May 29, 2024
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DEA-C01 Practice Exam Questions with Answers SnowPro Advanced: Data Engineer Certification Exam Certification

Question # 6

A database contains a table and a stored procedure defined as.

DEA-C01 question answer

No other operations are affecting the log_table.

What will be the outcome of the procedure call?

A.

The Iog_table contains zero records and the stored procedure returned 1 as a return value

B.

The Iog_table contains one record and the stored procedure returned 1 as a return value

C.

The log_table contains one record and the stored procedure returned NULL as a return value

D.

The Iog_table contains zero records and the stored procedure returned NULL as a return value

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Question # 7

The following is returned fromSYSTEMCLUSTERING_INFORMATION () for a tablenamed orders with adate column named O_ORDERDATE:

DEA-C01 question answer

What does the total_constant_partition_count value indicate about this table?

A.

The table is clustered very well on_ORDERDATE, as there are 493 micro-partitions that could not be significantly improved by reclustering

B.

The table is not clustered well on O_ORDERDATE, as there are 493 micro-partitions where the range of values in that column overlap with every other micro partition in

the table.

C.

The data inO_ORDERDATEdoes not change very often as there are 493 micro-partitionscontaining rows where that column has not been modified since the row was

created

D.

The data inO_ORDERDATEhas a very low cardinality as there are 493 micro-partitions where there is only a single distinct value in that column for all rows in the

micro-partition

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Question # 8

When would a Data engineer use table with the flatten function instead of the lateral flatten combination?

A.

When TABLE with FLATTENrequires another source in the from clause to refer to

B.

WhenTABLE with FLATTENrequires no additional source m the from clause to refer to

C.

Whenthe LATERALFLATTENcombination requires no other source m the from clause to refer to

D.

When table withFLATTENis acting like a sub-query executed for each returned row

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Question # 9

A Data Engineer has developed a dashboard that will issue the same SQL select clause to Snowflake every 12 hours.

---will Snowflake use the persisted query results from the result cache provided that the underlying data has not changed^

A.

12 hours

B.

24 hours

C.

14 days

D.

31 days

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Question # 10

A stream called TRANSACTIONS_STM is created on top of a transactions table in a continuous pipeline running in Snowflake. After a couple of months, the TRANSACTIONS table is renamed transactiok3_raw to comply with new naming standards

What will happen to the TRANSACTIONS _STM object?

A.

TRANSACTIONS _STMwill keep working as expected

B.

TRANSACTIONS _STMwill be stale and will need to be re-created

C.

TRANSACTIONS _STMwill be automatically renamedTRANSACTIONS _RAW_STM.

D.

Reading from the traksactioks_3T>: stream will succeed for some time after the expected STALE_TIME.

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Question # 11

Which system role is recommended for a custom role hierarchy to be ultimately assigned to?

A.

ACCOUNTADMIN

B.

SECURITYADMIN

C.

SYSTEMADMIN

D.

USERADMIN

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Question # 12

A CSV file around 1 TB in size is generated daily on an on-premise server A corresponding table. Internal stage, and file format have already been created in Snowflake to facilitate the data loading process

How can the process of bringing the CSV file into Snowflake be automated using the LEAST amount of operational overhead?

A.

Create a task in Snowflake that executes once a day and runs a copy into statement that references the internal stage The internal stage will read the files directly

from the on-premise server and copy the newest file into the table from the on-premise server to the Snowflake table

B.

On the on-premise server schedule a SQL file to run using SnowSQL that executes a PUT to push a specific file to the internal stage Create a task that executes once a

day m Snowflake and runs a OOPY WTO statement that references the internal stage Schedule the task to start after the file lands in the internal stage

C.

On the on-premise server schedule a SQL file to run using SnowSQL that executes a PUT to push a specific file to the internal stage. Create a pipe that runs a copy

into statement that references the internal stage Snowpipe auto-ingest will automatically load the file from the internal stage when the new file lands in the internal

stage.

D.

On the on premise server schedule a Python file that uses the Snowpark Python library. The Python script will read the CSV data into a DataFrame and generate an

insert into statement that will directly load into the table The script will bypass the need to move a file into an internal stage

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Question # 13

Which methods will trigger an action that will evaluate a DataFrame? (Select TWO)

A.

DataFrame.random_split ( )

B.

DataFrame.collect ()

C.

DateFrame.select ()

D.

DataFrame.col ( )

E.

DataFrame.show ()

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Question # 14

Which stages support external tables?

A.

Internal stages only; within a single Snowflake account

B.

internal stages only from any Snowflake account in the organization

C.

External stages only from any region, and any cloud provider

D.

External stages only, only on the same region and cloud provider as the Snowflake account

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Question # 15

The JSON below is stored in a variant column named v in a table named jCustRaw:

DEA-C01 question answer

Which query will return one row per team member (stored in the teamMembers array) along all of the attributes of each team member?

A)

DEA-C01 question answer

B)

DEA-C01 question answer

C)

DEA-C01 question answer

D)

DEA-C01 question answer

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 16

Assuming that the session parameter USE_CACHED_RESULT is set to false, what are characteristics of Snowflake virtual warehouses in terms of the use of Snowpark?

A.

Creating a DataFrame from a table will start a virtual warehouse

B.

Creating a DataFrame from a staged file with the read () method will start a virtual warehouse

C.

Transforming a DataFrame with methods like replace () will start a virtual warehouse -

D.

Calling a Snowpark stored procedure to query the database with session, call () will start a virtual warehouse

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Question # 17

Which callback function is required within a JavaScript User-Defined Function (UDF) for it to execute successfully?

A.

initialize ()

B.

processRow ()

C.

handler

D.

finalize ()

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Question # 18

A Data Engineer is implementing a near real-time ingestionpipeline to toad data into Snowflake using the Snowflake Kafka connector. There will be three Kafka topics created.

……snowflake objects are created automatically when the Kafka connector starts? (Select THREE)

A.

Tables

B.

Tasks

C.

Pipes

D.

internal stages

E.

External stages

F.

Materialized views

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Question # 19

Given the table sales which has a clustering key of column CLOSED_DATE which table function will return the average clustering depth for the SALES_REPRESENTATIVEcolumn for the North American region?

A)

DEA-C01 question answer

B)

DEA-C01 question answer

C)

DEA-C01 question answer

D)

DEA-C01 question answer

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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