Microsoft interview questions

Showing 241–252 of 252 results

• Sort Three Categories In PlaceMedium

  This question evaluates proficiency in in-place array manipulation, constant-space algorithms, and linear-time partitioning techniques. Commonly asked in Coding & Algorithms interviews to assess algorithmic efficiency, pointer/index management, and reasoning about invariants, it focuses on practical application of algorithmic concepts rather than purely theoretical understanding.

  MicrosoftSoftware EngineerCoding & AlgorithmsTechnical Screen
• Stream output until stop token appearsMedium

  This problem tests your ability to process streaming data from a generator while detecting a multi-character stop sequence that may be split across data chunks.

  MicrosoftSoftware EngineerCoding & AlgorithmsTechnical Screen
• Test classifier difference with McNemar's testMedium

  This question tests a data scientist's ability to apply McNemar's test for comparing paired classifiers, a core competency in statistical hypothesis testing and model evaluation. It assesses practical knowledge of contingency table analysis, exact vs. asymptotic tests, confidence interval construction, and multiple testing correction in machine learning contexts.

  MicrosoftData ScientistStatistics & MathOnsite
• Thread Safety, Deadlock Prevention, and Arrays vs Linked ListsMedium

  A rapid-fire software engineering fundamentals round covering what makes code thread-safe, what a deadlock is, the main ways to prevent, avoid or recover from deadlocks, and how arrays and linked lists compare. It tests precise definitions, concrete examples and practical trade-offs such as lock ordering and cache locality.

  MicrosoftSoftware EngineerSoftware Engineering FundamentalsOnsite
• Traverse a Matrix in Clockwise Spiral OrderMedium

  Traverse a rectangular matrix in clockwise spiral order without modifying the input. Learn the four-boundary technique and the guards that prevent duplicate visits on the final row or column.

  MicrosoftSoftware EngineerCoding & AlgorithmsOnsite
• Traverse org chart level by levelEasy

  This problem tests your ability to reconstruct a tree structure from a flat list of relationships and perform a breadth-first search (BFS) to group employees by their organizational depth.

  MicrosoftData ScientistCoding & AlgorithmsTechnical Screen
• Use confusion matrix to choose model metricEasy

  This question tests the ability to select appropriate classification metrics based on specific business objectives, asymmetric error costs, and dataset characteristics like class imbalance.

  MicrosoftData ScientistStatistics & MathTechnical Screen
• Validate a Hierarchy and Compute Propagation TimeHard

  Tests graph validation and traversal by requiring candidates to verify whether directed relationships form a valid single-rooted directed tree and calculate the maximum propagation delay from the root.

  MicrosoftSoftware EngineerCoding & AlgorithmsTechnical Screen
• When to automate operations work, and good-enough versus excellent automationMedium

  Reliability engineering discussion question: explain your philosophy on automating operational work to free engineers for development, your bar for good-enough versus excellent automation, and where automation stops being worth it. It tests toil measurement, cost-benefit reasoning, safety guardrails and concrete examples.

  MicrosoftSite Reliability EngineerSoftware Engineering FundamentalsOnsite
• Why This Company and Role, Three Traits That Fit, Job Changes, and Project OwnershipEasy

  A motivation and fit question set for a software engineer role focused on privacy and compatibility: why this company and role, three traits that make you a match, why you changed employers, and which parts of a resume project you built yourself. It tests self-awareness, honesty, and alignment with the work.

  MicrosoftSoftware EngineerBehavioral & LeadershipOnsite
• Write an average-income functionEasy

  This problem tests your ability to clean and aggregate numerical data using Python, specifically handling missing values (None/NaN) and calculating a clean arithmetic mean.

  MicrosoftData ScientistCoding & AlgorithmsTechnical Screen
• Your View of AI and How You Use AI Tools in Software Engineering WorkEasy

  A behavioral question asking for your view of AI and how you use AI tools in your engineering work. It tests balanced judgment about benefits and limits, how you verify AI-generated output, accountability for what you ship, and care with private code and data.

  MicrosoftSoftware EngineerBehavioral & LeadershipOnsite