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All CategoriesBehavioralSpark/Big DataSQLPython/CodingSystem Design/ArchitectureCloud/ToolsGeneral/Othereasymediumhard
21

What is Azure Data Factory (ADF), and what are its main components?

Cloud/Toolseasy0.6 min read
EYIncedoTech Mahindra
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22

What is the role of the Integration Runtime (IR) in ADF?

Cloud/Toolseasy0.7 min read
EYIncedoTech Mahindra
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23

Explain Common Table Expressions (CTEs) and their benefits.

SQLeasybigquery0.5 min read
AareteDunnhumbyIncedo
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24

Explain the difference between UNION and UNION ALL.

SQLeasy0.4 min read
PresidioSwiggy
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25

What is the difference between a clustered and non-clustered index?

SQLeasybigquerysql0.4 min read
PresidioSwiggy
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26

What is the difference between DELETE and TRUNCATE?

SQLeasy0.4 min read
PresidioSwiggy
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27

What is a CTE (Common Table Expression)? What are its uses?

SQLeasybigquerysnowflake0.6 min read
Fossil GroupKaseya
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8

When would you architecturally choose Dataset[T] over DataFrame in a Scala Spark pipeline, and what are the scalability and portability trade-offs? Include type-safety benefits vs. operational constraints.

Spark/Big Dataeasy
9

Write a Python function to find the first non-repeating character in a string.

Python/Codingeasy
10

What is the difference between Managed and External Tables in Databricks?

Spark/Big Dataeasy
11

Explain the difference between a list and a tuple in Python.

Python/Codingeasy
12

How do you handle exceptions in Python? Provide an example.

Python/Codingeasy
13

What is the difference between shallow copy and deep copy in Python?

Python/Codingeasy
14

Write a Python function to find the first non-repeating character in a string.

Python/Codingeasy
15

What are decorators in Python, and how do they work?

Python/Codingeasy

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