40% off Premium for a limited time

CrowdStrike interview questions

46 questions29 coding2 system design15 behavioral4 freeUpdated

This is every question in the CrowdStrike guide, in one list: 29 coding problems, 2 system designs and 15 behavioral questions, drawn from what candidates report about CrowdStrike interviews.

Each row shows the round it comes from and links to the lesson that works through it. 4 are free to read in full. The other 42 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

Open the CrowdStrike guide Unlock all 46

CrowdStrike coding interview questions

29 problems, in the order the guide teaches them. Each lesson gives the full problem, a worked solution and the follow-ups interviewers tend to add.

1Number of Islands: Count Threat ClustersFreeCodingMediumCore Patterns & Security
2Meeting Rooms II: Minimum Concurrent ScannersFreeCodingMediumCore Patterns & Security
3Credential Check: Verify a Salted One-Way HashFreeCodingEasyCore Patterns & Security
4Premium medium problemCodingMediumGraphs and Trees
5Premium medium problemCodingMediumGraphs and Trees
6Premium medium problemCodingMediumGraphs and Trees
7Premium medium problemCodingMediumGrids & Strings
8Premium medium problemCodingMediumGrids & Strings
9Premium easy problemCodingEasyGrids & Strings
10Premium medium problemCodingMediumStrings and Arrays
11Premium medium problemCodingMediumStrings and Arrays
12Premium easy problemCodingEasyStrings and Arrays
13Premium medium problemCodingMediumStrings and Arrays
14Premium medium problemCodingMediumShuffles and Even Splits
15Premium easy problemCodingEasyShuffles and Even Splits
16Premium medium problemCodingMediumShuffles and Even Splits
17Premium medium problemCodingMediumThe Intern Online Test
18Premium easy problemCodingEasyThe Intern Online Test
19Premium easy problemCodingEasyThe Intern Online Test
20Premium medium problemCodingMediumData Structure Design
21Premium medium problemCodingMediumData Structure Design
22Premium medium problemCodingMediumData Structure Design
23Premium medium problemCodingMediumData Structure Design
24Premium medium problemCodingMediumData Structure Design
25Premium easy problemCodingEasyStacks, Queues and Streams
26Premium easy problemCodingEasyStacks, Queues and Streams
27Premium medium problemCodingMediumStacks, Queues and Streams
28Premium easy problemCodingEasyStacks, Queues and Streams
29Premium medium problemSystem designMediumDesign a Worker Pool

CrowdStrike system design interview questions

2 designs, each worked end to end in its own lesson, from requirements to the architecture and its trade-offs.

#Question
1Design a Threat-Detection PipelineFree
2Design a Worker Pool (Premium)

A lock means the design is named here and its walkthrough is Premium.

CrowdStrike behavioral interview questions

15 questions, grouped by what the interviewer is testing. The lesson explains why each one gets asked and what a strong answer covers.

Why CrowdStrike, and stopping breaches (3)

All 3 are Premium

The project deep-dive and ownership (3)

All 3 are Premium

Working through ambiguity (3)

All 3 are Premium

Collaboration and conflict (3)

All 3 are Premium

Judgment under pressure (3)

All 3 are Premium

Read the CrowdStrike behavioral questions

See all 46 CrowdStrike questions by name

Premium opens the 42 locked questions on this page, each with the full prompt and a worked answer, and every other lesson in all 100 company guides.

See PremiumStart with the free CrowdStrike lessons
Common questions

How many questions are in the CrowdStrike interview guide?

46: 29 coding problems, 2 system designs and 15 behavioral questions. The guide was last updated in November 2026.

Which rounds do these CrowdStrike interview questions come from?

Of the 29 coding problems, 28 come from the coding rounds and 1 from the system design lessons. The 2 system designs and 15 behavioral questions come from the system design and behavioral rounds. Every row in the list carries its round, so you can start with the one you have booked.

Which CrowdStrike interview questions are free?

4 of the 46 are free to read in full, marked Free in the list. The other 42 come with Premium, which also opens all 100 company guides.