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Interview Questions

Real questions from top companies Β· hard

700+ Easy450+ Medium650+ Hard
All CategoriesBehavioralSpark/Big DataSQLPython/CodingSystem Design/ArchitectureCloud/ToolsGeneral/Othereasymediumhard
141

How did you structure your solution?

General/Otherhard0.2 min read
ZS Associates
β†’
142

How do these transformations impact memory usage?

General/Otherhardjoinpartitionspark0.2 min read
TCS
β†’
143

How do you increase job performance? What techniques and optimizations?

General/Otherhardoptimizationpartition0.2 min read
Hexaware
β†’
144

How would you design the schema for transactional data storage?

System Design/Architecturehardjoinoptimizationpartition3.6 min read
Fragma Data Systems
β†’
145

How would you handle large datasets in a distributed computing environment?

General/Otherhardjoinoptimizationpartition0.2 min read
Wipro
β†’
146

How would you handle massive data ingestion in a cloud environment?

System Design/Architecturehardpartition0.1 min read
Wipro
β†’
147

How would you model customer transaction data for both analytical and operational use cases?

General/Otherhardpartitionsnowflakespark0.5 min read
BCG
β†’
148

How would you model hierarchical data in a relational database?

General/Otherhardetlsql0.5 min read
Goldman Sachs
β†’
149

Implement a rate-limiter to control API requests per user.

General/Otherhardpartitionwindow0.4 min read
Disney+ Hotstar
β†’
150

Integrating an API with a Database - Steps

General/Otherhardairflowpartition0.6 min read
Verizon
β†’
151

Lakehouse vs. Warehouse

System Design/Architecturehardbigquerylakehousesnowflake0.5 min read
Nihilent
β†’
152

Libraries for Data Wrangling

General/Otherhardetlpythonspark0.4 min read
NAB
β†’
153

Mapper and Reducer design for solving Two-Sum

System Design/Architecturehardjoinoptimizationpartition3.6 min read
media.net
β†’
154

Name the tools and technologies you have worked with to date.

General/Otherhardairflowbigquerypython0.3 min read
Dunnhumby
β†’
155

Notebook Optimization Strategies?

General/Otherhardoptimizationpythonspark0.4 min read
Deloitte
β†’
156

Reasons for seeking a change in employment.

General/Otherhard0.2 min read
Thoughtworks
β†’
157

Share experiences of quickly adapting to new technologies and tools in evolving project requirements.

General/Otherhard0.2 min read
Expedia
β†’
158

Share your journey as a Data Engineer

General/Otherhardetl0.2 min read
Nihilent
β†’
159

Synchronization Mechanisms

General/Otherhard0.2 min read
ZS Associates
β†’
160

TCP vs UDP Protocol

General/Otherhard0.2 min read
ZS Associates
β†’

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