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Updated weekly · Last refresh Oct 17

Colruyt Group Software Engineer Interview Questions

The questions to prepare for a Colruyt Group Software Engineer interview. Questions from real interview reports rank first. Updated daily.

30questions
~4htotal time
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1
CodingStart here. 7 questions · ~60 min
Compare TCP and UDP ProtocolsEasy

Explain how TCP and UDP differ in reliability, ordering, connection setup, and common use cases.

MathGraphsColruyt Group
Difference Between Interface and Abstract Class in JavaMedium

Explain the differences between interfaces and abstract classes in Java and when to use each.

Hash TablesArraysStringsColruyt Group
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2
Execution4 questions · ~34 min
OSI Model and Network TroubleshootingMedium

Tests your fundamentals of networking and your approach to diagnosing distributed system problems.

distributed systemsColruyt Group
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3
Behavioral & Leadership12 questions · ~103 min
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4
More topics7 questions · ~60 min
SDLC Workflow DesignMedium

Tests your ability to explain SDLC and apply it to an end-to-end onboarding workflow.

sdlcColruyt Group
SOAP Over JMS ExperienceMedium

Assesses your experience with enterprise integration patterns and messaging.

Colruyt Group
Java Pass-by-Value SemanticsEasy

Tests your understanding of Java parameter passing and object mutation behavior.

javaprogramming conceptsColruyt Group
Streams and Generics in JavaMedium

Tests your practical command of Java language features used in production code.

javaColruyt Group
Networking Fundamentals TroubleshootingMedium

Evaluates your understanding of core networking concepts used in troubleshooting.

NetworkingColruyt Group
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
SQL Window Functions ExperienceMedium
Practice
Practice drill

Use SQL window functions to rank regions by average 2024 yield within each country.

Window FunctionsJoinsData ManipulationErnst & YoungKBRMaximus Tech
Java Core Concepts and SQL BasicsMedium
Practice
Practice drill

Explain core Java concepts and produce an aggregated SQL access summary using joins.

javaJoinssqlSaviynt
The finish line: interview-readyComplete all 30 questions plus 2 hands-on drills to finish this plan.