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Etech Interview Questions

The questions to prepare for Etech interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
Technical FundamentalsStart here. 5 questions · ~41 min
Explain OOP Concepts in .NETMedium

Evaluates ability to articulate OOP fundamentals in a .NET environment.

programming conceptsoopEEtech
Session Management in ASP.NETMedium

Assesses understanding of session handling and state management in ASP.NET.

web technologiessession managementEEtech
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2
Behavioral & Leadership32 questions · ~265 min
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3
More topics8 questions · ~66 min
Relational vs Non-Relational DatabasesEasy
Practice

Produce a structured SQL comparison of relational and non-relational database characteristics.

nosqldatabasesdatabase conceptsEEtech
Debugging Strategy for Tricky ErrorsMedium

Evaluates debugging methodology and problem isolation skills.

technical skillsProblem SolvingDebuggingEEtech
Past Project Architecture WalkthroughMedium

Assesses ability to describe system architecture and decisions.

designtechnical experienceEEtech
Balance Risk Controls and EfficiencyMedium

Evaluates balancing risk controls with efficiency.

balanceoperational efficiencyEEtech
Track and Report Risk MetricsMedium

Evaluates methods and tooling for risk metric tracking and reporting.

EEtech
Design a Registration, Transaction, and Reporting ModuleMedium

Tests system design and module planning for typical business flows.

EEtech
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
Consecutive Login Days SQLHard
Practice
Practice drill

Find each user's longest consecutive login streak by deduplicating login dates and identifying gaps between days.

Date FunctionsData ManipulationProblem SolvingDidi ChuxingByteDance
Scenario-Based Business CaseHard
Practice
Practice drill

Aggregate project outcomes and present a defensible SQL-based business case analysis.

project experienceJoinsbusiness problemTikTok
The finish line: interview-readyComplete all 45 questions plus 2 hands-on drills to finish this plan.