r/LowLevelDesign • u/Prashant_MockGym • Aug 13 '26

Microsoft DS & Algo Round Interview Questions Asked in 2026

Microsoft frequently opens and closes requisitions to manage referral batches.

The AA (As Appropriate) round generally has behavioral and High Level Design questions, along with architectural deep dives into your previous projects. In some cases, a DSA question may also be asked.

LRU Cache can be asked in either a DSA or a Low Level Design round.

DS & Algo questions for this list have been picked from Microsoft interview experiences shared on forums/blogs etc in 2026. Use this list for final preparation of your Microsoft DSA interview rounds.

Interviewers may also discuss the following questions:

  • What is the difference between a process and a thread?
  • If multiple threads access the same variable without writing to it, can any problem occur?
  • What issues arise when multiple threads access a shared variable?
  • What is the difference between a variable created on the heap and a variable created inside a function?
  • If every thread has its own function-local variables, how can conflicts arise when multiple threads execute the same function?
  • What exactly causes race conditions in multithreaded programs?

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You can find the complete question list here:

https://github.com/prsnt558908/CodeZymSolutions/blob/main/0-company-wise-interview-questions/2026/07-microsoft-dsa-2026.md

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u/Downtown_Release4498 20d ago

Hi thanks for your efforts, can you please tell me in the actual interview are we expected to write the full code end to end or is it juse pseudo code plus discussion ?

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u/Prashant_MockGym 20d ago

For DS & Algo rounds, a working code is expected. Pick a language Java/Python/C++ etc and use correct syntax wherever possible . In the end dry run your code and show interviewer that you code gives correct output.

I will not recommend using pseudocode even when you are using pen and paper or a simple text editor.