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Updated weekly · Last refresh Aug 30

L&T Technology Services Embedded Engineer Interview Questions

The questions to prepare for a L&T Technology Services Embedded Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 19 questions · ~154 min
Polling vs Interrupt-Driven I/OEasy

Compare polling and interrupt-driven I/O, including CPU usage, latency, complexity, and when each approach is appropriate in embedded systems.

basicsEmbedded SystemsinterruptsL&T Technology Services
volatile const static in CHard

Explain how volatile, const, and static affect optimization, mutability, storage duration, and linkage in C.

L&T Technology Services
Malloc vs Calloc in EmbeddedMedium

Tests your knowledge of dynamic allocation semantics and embedded constraints like fragmentation and determinism.

memory managementbasicsL&T Technology Services
Ratios for SchedulingEasy

Tests your ability to model and compute allocation and scheduling outcomes using proportional reasoning.

MathL&T Technology Services
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2
Security & Infrastructure13 questions · ~105 min
Microprocessor and C ProgrammingMedium

Assesses foundational embedded computing knowledge and your ability to apply C to it.

L&T Technology Services
MOSFET and Logic Gate DiagramsMedium

Evaluates foundational electronics understanding and your ability to connect it to embedded work.

L&T Technology Services
CAN and Embedded C ExperienceMedium

Tests embedded C proficiency and practical understanding of CAN-based communication.

communication protocolsL&T Technology Services
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3
Behavioral & Leadership12 questions · ~97 min
Leading Without Clear RequirementsMedium

Tests how you lead through ambiguity by creating clarity, prioritizing effectively, and driving execution without waiting for perfect requirements.

CommunicationOwnershipDealing With AmbiguityL&T Technology Services
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The finish line: interview-readyComplete all 44 questions to finish this plan.