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Interview Questions

Real questions from top companies in General/Other

700+ Easy450+ Medium650+ Hard
All CategoriesBehavioralSpark/Big DataSQLPython/CodingSystem Design/ArchitectureCloud/ToolsGeneral/Othereasymediumhard
21

Calculate a 7-day moving average of clicks for each user_id

General/Othermediumpartitionsparksql0.2 min read
Matrix
β†’
22

Calculate a 7-day moving average of orders for each city in the Swiggy database.

General/Othermediumpartitionsparksql0.2 min read
Swiggy
β†’
23

Calculate cumulative sales for each product in each store, ordered by sale_date

General/Othermediumpartitionsparksql0.2 min read
Matrix
β†’
24

Calculate the average session duration per user for the Expedia website.

General/Othereasysql0.2 min read
Expedia
β†’
25

Calculate the total number of transactions (units sold) for each product.

General/Othermediumjoinsparksql0.1 min read
Wayfair
β†’
26

Calculate the total sales amount for customers born between 1998-01-15 and 2000-01-15.

General/Othermediumjoinsparksql0.2 min read
Aarete
β†’
27

Can you describe a project you successfully accomplished? What did you do to achieve that success?

General/Othereasyspark0.2 min read
Delivery Hero
β†’
28

Can you describe the role of user groups in setting up these policies?

General/Othereasy0.2 min read
TCS
β†’
29

Can you elaborate on your Big Data project experience?

General/Othereasyspark0.2 min read
Meesho
β†’
30

Can you share an example of a project you worked on that had a significant impact on your organization?

General/Othereasyairflow0.2 min read
Walmart
β†’
31

Combine records by name with concatenated course values

General/Othereasysparksql0.2 min read
Pubmatic
β†’
32

Command to Read JSON Data and Options

General/Otherhardspark0.2 min read
LTIMindtree
β†’
33

Compare batch processing and stream processing for financial data.

General/Otherhard0.2 min read
Goldman Sachs
β†’
34

Compute the moving average of daily transactions over a 7-day window.

General/Othermediumsparksqlwindow0.3 min read
Goldman Sachs
β†’
35

Count occurrences of a specific word in a file

General/Otherhardpythonspark0.2 min read
KPMG
β†’
36

Daily Data Volume - quantify

General/Othereasy0.2 min read
LTIMindtree
β†’
37

Data Security in BFSI - encryption, IAM, auditing

General/Otherhard0.2 min read
Lumiq
β†’
38

Data Shuffling Causes and Techniques

General/Othermediumjoinpartitionspark0.2 min read
Nagarro
β†’
39

Data Storage and Retrieval Optimization techniques

General/Otherhardoptimizationpartition0.1 min read
Lumiq
β†’
40

Data access strategy for clients

General/Othereasy0.1 min read
media.net
β†’

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