ZorixOS
7+ Dunzo questions

Dunzo interview questions and how to prepare

The questions candidates report from Dunzo interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in Dunzo's interview style.

Practice Dunzo questions free All companies

ZorixOS tracks 7 community-reported Dunzo interview questions, drawn from an open-source dataset of real interview reports and sorted by how frequently each one comes up. Every question links to its source. Alongside them are 78 original ZorixOS practice questions written in Dunzo's known interview style (not claimed as asked at Dunzo), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to Dunzo.

Updated July 2026

Dunzo interview questions candidates report

Community-reported from real Dunzo interviews (open-source dataset), most-asked first. Showing 7. Each links to its source.

  1. Build Array Where You Can Find The Maximum Exactly K Comparisons
    Dynamic ProgrammingPrefix Sum
    Hard100% asked
  2. Count Complete Tree Nodes
    Binary SearchBit ManipulationTreeBinary Tree
    Easy100% asked
  3. Find All Good Strings
    StringDynamic ProgrammingString Matching
    Hard100% asked
  4. Number of Distinct Substrings in a String
    StringTrieRolling HashSuffix Array
    Medium100% asked
  5. Number of Ways to Form a Target String Given a Dictionary
    ArrayStringDynamic Programming
    Hard100% asked
  6. Stone Game VII
    ArrayMathDynamic ProgrammingGame Theory
    Medium100% asked
  7. Ways to Make a Fair Array
    ArrayPrefix Sum
    Medium100% asked

Practice questions in Dunzo's style

Original ZorixOS questions written the way Dunzo interviews, so you rehearse the real format. Not claimed as asked at Dunzo.

  1. Dunzo's delivery partners often face dynamic route changes due to traffic or new orders. Design a system that can efficiently re-route a delivery partner in real-time, considering their current location, destination, and the priority of upcoming deliveries. How would you handle potential race conditions if multiple orders are assigned simultaneously?

    Software EngineerSystem DesignTests: Assesses ability to design scalable, real-time systems and handle concurrency issues.

  2. Dunzo uses a microservices architecture. Imagine a scenario where users are reporting intermittent failures in placing grocery orders. As a Software Engineer, how would you approach debugging this issue across multiple services, and what tools or techniques would you use to pinpoint the root cause?

    Software EngineerDebuggingTests: Evaluates problem-solving skills and familiarity with distributed system debugging.

  3. Write a SQL query to find the top 3 most frequently ordered grocery items by users in a specific city (e.g., Bangalore) during the last month, along with the total number of times each item was ordered. Assume you have tables for `orders`, `order_items`, and `products`.

    Data ScientistSQLTests: Tests SQL proficiency for data retrieval and aggregation.

  4. Dunzo wants to understand the impact of its 'Express Delivery' feature on customer retention. Design an A/B test to measure this. What are the key metrics you would track, and how would you determine statistical significance?

    Data ScientistExperimentationTests: Assesses understanding of experimental design and metric selection.

  5. A user complains that their grocery order arrived with missing items. How would you investigate this issue from a product perspective? What data would you look at, and what potential product improvements could be considered?

    Product ManagerProduct SenseTests: Evaluates product problem-solving and data-driven decision-making.

  6. Imagine Dunzo is considering expanding its services to include laundry pickup and delivery. What are the key user needs and pain points you'd explore for this new vertical? How would you prioritize features for the initial launch?

    Product ManagerStrategyTests: Tests strategic thinking and ability to identify market opportunities.

72+ more Dunzo-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.

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Dunzo Interview Questions (2026) | ZorixOS