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- DEA-C01 Dumps PDF
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- 65 Questions
- Updated On September 04, 2024
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Frequently Asked Questions
Question # 1
A Data Engineer executes a complex query and wants to make use of Snowflake s queryresults caching capabilities to reuse the results.Which conditions must be met? (Select THREE).
A. The results must be reused within 72 hours.
B. The query must be executed using the same virtual warehouse.
C. The USED_CACHED_RESULT parameter must be included in the query.
D. The table structure contributing to the query result cannot have changed
E. The new query must have the same syntax as the previously executed query.
F. The micro-partitions cannot have changed due to changes to other data in the table
Question # 2
Which Snowflake objects does the Snowflake Kafka connector use? (Select THREE).
A. Pipe
B. Serverless task
C. Internal user stage
D. Internal table stage
E. Internal named stage
F. Storage integration
Question # 3
Which methods can be used to create a DataFrame object in Snowpark? (Select THREE)
A. session.jdbc_connection()
B. session.read.json{)
C. session,table()
D. DataFraas.writeO
E. session.builder()
F. session.sql()
Question # 4
A Data Engineer is writing a Python script using the Snowflake Connector for Python. TheEngineer will use the snowflake. Connector.connect function to connect to Snowflake Therequirementsare:*Raise an exception if the specified database schema or warehouse does not exist*improve download performanceWhichparameters of the connect function should be used? (Select TWO).
A. authenticator
B. arrow_nunber_to_decimal
C. client_prefetch_threads
D. client_session_keep_alivs
E. validate_default_parameters
Question # 5
A Data Engineer wants to create a new development database (DEV) as a clone of thepermanent production database (PROD) There is a requirement to disable Fail-safe for alltables.Which command will meet these requirements?
A. CREATE DATABASE DEVCLONE PRODFAIL_SAFE=FALSE;
B. CREATE DATABASE DEVCLONE PROD;
C. CREATE TRANSIENT DATABASE DEVCLONE RPOD
D. CREATE DATABASE DEVCLOSE PRODDATA_RETENTION_TIME_IN_DAYS =0L
Question # 6
A company has an extensive script in Scala that transforms data by leveragingDataFrames. A Data engineer needs to move these transformations to Snowpark.…characteristics of data transformations in Snowpark should be considered to meet thisrequirement? (Select TWO)
A. It is possible to join multiple tables using DataFrames.
B. Snowpark operations are executed lazily on the server.
C. User-Defined Functions (UDFs) are not pushed down to Snowflake
D. Snowpark requires a separate cluster outside of Snowflake for computations
E. Columns in different DataFrames with the same name should be referred to with squared brackets
Question # 7
At what isolation level are Snowflake streams?
A. Snapshot
B. Repeatable read
C. Read committed
D. Read uncommitted
Question # 8
Which Snowflake feature facilitates access to external API services such as geocoders.data transformation, machine Learning models and other custom code?
A. Security integration
B. External tables
C. External functions
D. Java User-Defined Functions (UDFs)
Question # 9
A Data Engineer needs to know the details regarding the micro-partition layout for a tablenamed invoice using a built-in function.Which query will provide this information?
A. SELECT SYSTEM$CLUSTERING_INTFORMATICII (‘Invoice' ) ;
B. SELECT $CLUSTERXNG_INFQRMATION ('Invoice')'
C. CALL SYSTEM$CLUSTERING_INFORMATION (‘Invoice’);
D. CALL $CLUSTERINS_INFORMATION('Invoice’);
Question # 10
Which functions will compute a 'fingerprint' over an entire table, query result, or window toquickly detect changes to table contents or query results? (Select TWO).
A. HASH (*)
B. HASH_AGG(*)
C. HASH_AGG(<expr>, <expr>)
D. HASH_AGG_COMPARE (*)
E. HASH COMPARE(*)
Question # 11
Which output is provided by both theSYSTEM$CLUSTERING_DEPTHfunction andtheSYSTEM$CLUSTERING_INFORMATIONfunction?
A. average_depth
B. notes
C. average_overlaps
D. total_partition_count
Question # 12
When would a Data engineer use table with the flatten function instead of the lateral flattencombination?
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
Question # 13
Which system role is recommended for a custom role hierarchy to be ultimately assignedto?
A. ACCOUNTADMIN
B. SECURITYADMIN
C. SYSTEMADMIN
D. USERADMIN
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