MockQuestions

Google Software Developer Mock Interview

To help you prepare for a Software Developer interview at Google, here are 30 interview questions and answer examples.

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Question 1 of 30

What are some of the testing and debugging processes you use in your software development?

This is either a standalone question or a follow-up to a previous question. If you previously told the interviewer about the QA processes you use, you should now discuss your testing and debugging processes. During a Google interview, you should always anticipate follow-up questions whenever you answer an interviewer's question. This is why you keep your answers short and direct. It creates an opportunity for the interviewer to dive deeper into the topic if they have a specific interest in it or move on to a new line of questioning.

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Google Software Developer Interview Questions & Answers

Below is a list of our Google interview questions. Click on any interview question to view our answer advice and answer examples. You may view six answer examples before our paywall loads. Afterwards, you'll be asked to upgrade to view the rest of our answers.

  • Behavioral

    1. What are some of the testing and debugging processes you use in your software development?

  • Behavioral

    2. What are some of the software design patterns that you use, and in what situations do you use them?

  • Behavioral

    3. How do you approach implementing an LRU Cache in your favorite programming language?

  • Behavioral

    4. What software development process do you prefer to use?

  • Behavioral

    5. Describe how do you implement an insertion sort algorithm, and what's the easiest way to do it?

  • Behavioral

    6. How would you define software configuration management?

  • Competency

    7. How much do you know about object-oriented programming?

  • Competency

    8. What method do you use to find the missing number in an integer array of 1 to 100?

  • Competency

    9. I've heard applications referred to as both software and programs. Which terminology do you use, and how do these differ?

  • Competency

    10. Making a comparison, how would you differentiate between Quality Assurance and Quality Control, as you believe it is implemented here at Google?

  • Competency

    11. Talk about the differences between structured English and Pseudo Code.

  • Competency

    12. Explain how duplicates are removed from an array without using a library.

  • Competency

    13. Prior to starting any software development project here at Google, we perform a feasibility study. What is your opinion on a feasibility study, and when should it be done?

  • Competency

    14. What is software scope, and what does the process involve?

  • Competency

    15. If hired by Google, one of your tasks will be to debug your and other developer's code. As a software developer, explain the meaning of debugging and why it's used?

  • Competency

    16. What are verification and validation, and why are they important?

  • Competency

    17. Describe at a high level what the software development life cycle process is.

  • Competency

    18. Can you list for me the important categories of software development?

  • Competency

    19. Google software developers use a variety of different sorting algorithms. Tell me the difference between a Comparison and Non-Comparison Sorting Algorithm?

  • Competency

    20. Can you walk me through the meaning behind a Depth First Search Algorithm for a binary tree?

  • Competency

    21. How do you find the starting node of a cycle if a link contains a cycle?

  • Competency

    22. Here at Google, our developers work with Java quite a bit. Tell me how you find duplicate numbers in an array in Java containing multiple duplicates?

  • Experience

    23. As part of software development, were you involved with working on functional and non-functional requirements?

  • Experience

    24. What is your experience with implementing a Binary Search Algorithm without recursion?

  • Experience

    25. What are some of the types of development projects you have worked on in your past positions?

  • Experience

    26. Based on your experience, what's the best way to find a node that begins with two single link lists?

  • Experience

    27. Can you describe a challenging software development project you recently completed and the results?

  • Experience

    28. What are some of the QA processes you are familiar with and have worked with in the past?

  • Personal

    29. Do you have a preferred language that you like to write programming algorithms?

  • Personal

    30. Are you familiar with Agile and Waterfall? Which of these software development methodologies do you prefer?