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CrowdStrike DSA Interview Questions

CrowdStrike asks medium-hard DSA with a security flavour — string matching, graphs and streaming detection — plus OS and process internals.

Two PointersBreadth-First SearchDesignSortingBinary SearchTopological Sort

12 real interview questions actually asked at CrowdStrike — filter by how recently they were reported.

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What CrowdStrike asks in the DSA round

CrowdStrike asks medium-hard DSA with a security flavour — string matching, graphs and streaming detection — plus OS and process internals.

Across the 12 questions on this page, the weight sits on these patterns:

How to prepare for the CrowdStrike interview

  1. 1. Start at the top of the list above. The patterns are ordered by how often CrowdStrike uses them, so the first two or three buy you the most coverage per hour.
  2. 2. Solve by pattern, not at random. Doing eight two pointers problems in a row is what makes the ninth recognisable in an interview — jumping between topics does not.
  3. 3. Tick problems off as you go so the gaps are visible. The per-pattern counts tell you which CrowdStrike topic you have actually covered.
  4. 4. Write the approach before the code. CrowdStrike interviews are judged on the reasoning as much as the working solution.
  5. 5. Pair this with the pattern guides when a topic is new, and the system design sheet if the role is senior enough to have that round.
  6. 6. If this is a campus or off-campus drive rather than a lateral move, the placement preparation guide covers the stages around the DSA round — aptitude, core subjects and the HR interview — in the order they actually happen.

CrowdStrike interview questions — FAQ

How many DSA questions does CrowdStrike ask?

This sheet collects 12 CrowdStrike interview questions, grouped into 8 patterns. They are questions reported as actually asked in CrowdStrike interviews, and each one carries how recently it was reported so you can practise the current set first.

Which topics should I focus on for a CrowdStrike interview?

Two Pointers, Breadth-First Search, Design come first — the patterns on this page are ordered by how often CrowdStrike leans on them, so working top-down spends your time where the interview actually is. The full order is Two Pointers, Breadth-First Search, Design, Sorting, Binary Search, Topological Sort.

How long does it take to finish the CrowdStrike sheet?

At roughly 25 minutes per problem — reading it, solving it and writing the approach down — 12 problems is about 5 hours, or 1 weeks at ten hours a week. Most people do not need all of it: the first two or three patterns cover the majority of what gets asked.

Is this CrowdStrike question sheet free?

Yes. Every problem, the pattern grouping and the progress tracking are free and need no account. Progress saves in your browser, and signing in with Google only adds syncing across devices.

Can I track which CrowdStrike questions I have solved?

Yes — tick a problem on this page and it stays ticked. The counts per pattern update as you go, so you can see which of CrowdStrike's topics you have actually covered rather than guessing.

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