
Pertemuan 6 - Azure Data Engineer
Quiz
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Computers
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Professional Development
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Practice Problem
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Medium
Herlina Herlina
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which definition best describes Apache Spark?
A highly scalable relational database management system
A virtual server with a Python runtime
A distributed platform for parallel data processing using multiple languages
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You need to use Spark to analyze data in a parquet file. What should you do?
Load the parquet file into a dataframe
Import the data into a table in a serverless SQL pool
Convert the data to CSV format
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method of the Dataframe object is used to save a dataframe as a file?
toFile()
write()
save()
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to split the data across folders when saving a dataframe?
splitBy()
distributeBy()
partitionBy()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if you drop an external table that is based on existing files?
An error – you must delete the files first
The table is dropped from the metastore but the files remain unaffected
The table is dropped from the metastore and the files are deleted
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You want to write code in a notebook cell that uses a SQL query to retrieve data from a view in the Spark catalog. Which magic should you use?
%%spark
%%pyspark
%%sql
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You've loaded a Spark dataframe with data, that you now want to use in a Delta Lake table. What format should you use to write the dataframe to storage?
CSV
PARQUET
DELTA
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