Netcracker Technology Software Engineer Interview Questions

The questions to prepare for a Netcracker Technology Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

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Implementing Singleton in JavaEasy

Explain how to implement a singleton in Java, including thread safety, lazy initialization, and common pitfalls.

RecursionHash Tables

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Understanding Multithreading in Java

Medium

Explain the concept of multithreading in Java, including its benefits and challenges.

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Java 8 ArrayList and Collections Advances

Medium

Tests familiarity with Java 8 collection improvements and how they affect implementation choices.

javacollectionsFrameworks

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Delivering Under Severe Time Pressure

Medium

Tests prioritization under pressure, ownership, and stakeholder management when a deadline is fixed and the work is at risk.

stress managementConflict Resolutiontime management

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Difference Between WHERE and HAVING ClausesEasy

Explain the differences between WHERE and HAVING clauses in SQL and when to use each.

JoinsData WranglingAggregations

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Understanding ACID Properties in Databases

Medium

Explain the ACID properties of database transactions and their importance.

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Explain ACID in Transaction Systems

Easy

Explain the four ACID properties and why they matter for reliable transaction processing in SQL systems.

acid propertiestransactionsdata integrity

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Second Highest Without Aggregates

Medium

Tests SQL reasoning under strict constraints and ability to compute rankings without aggregates.

SubqueriesRankingSelf-Joins

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