Dataford
Top 50
Topic roadmap
Updated weekly · Last refresh Sep 13

Top 50 multithreading Interview Questions

The most frequently asked multithreading questions across all roles and companies, ranked by real interview frequency. Updated daily.

50questions
~8htotal time
60companies covered
Track your progressSign up free to work through all 50 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 39 questions · ~366 min
Linked List and Graph/Tree CodingEasy
Practice

Detect a cycle in a Design Compiler dependency chain using linked-list pointers or graph traversal.

multithreadingjavaData StructuresMicro1Synopsys
Print 1 to N with ThreadsHard
Practice

Coordinate three threads so each prints its assigned numbers while preserving the global 1-to-n order.

threadingmultithreadingsynchronizationDemandbase
Multithreaded Deposit and WithdrawalHard
Practice

Process concurrent deposits and withdrawals with per-account locks while preserving operation order for each Alcatel-Lucent Motive account.

multithreadingbankingAlcatel-Lucent Motive
Thread-Safe Number PrintingMedium

Tests concurrent programming skills and correctness of shared-state coordination.

multithreadingjavaconcurrencyAArrise solutions
Debugging Race Conditions and DeadlocksHard

Tests systematic debugging, concurrency fundamentals, and prevention strategies.

multithreadingjavaDebuggingAArrise solutions
Thread-Safe LRU CacheHard
Recently asked

Evaluates data structure design plus concurrency control for correctness and performance.

multithreadinglru cacheAmazon Kuiper Commercial ServicesAmazon DSPAmazon
More Coding questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
2
Behavioral & Leadership5 questions · ~47 min
Owning a Concurrency-Related Production IssueMedium

Tests ownership during a mobile concurrency incident, including cross-functional communication, prioritization, and learning after production impact.

multithreadingplatformbackground processingTelus Digital
Race Conditions in Embedded ThreadsMedium

Tests your approach to concurrency correctness and debugging in embedded systems.

multithreadingEmbedded Systemsrace conditionsHHoneywell AerospaceInabia Software & ConsultingPhizenix
More Behavioral & Leadership questions with a free account
3
Technical Fundamentals3 questions · ~28 min
More Technical Fundamentals questions with a free account
4
More topics3 questions · ~28 min
More questions with a free account
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Queries for RankingMedium
Practice
Practice drill

Rank active HSBC employees by division and return every employee tied for the highest or second-highest salary.

javasqlHsbc
Remove Redundant ParenthesesMedium
Practice
Practice drill

Normalize expression strings by removing parentheses that directly enclose a single operand.

data cleaningData ManipulationDebuggingChargebee
Optimizing Complex SQL JoinsHard
Practice
Recently asked
Practice drill

Build an efficient PostgreSQL report that aggregates partitioned project events and costs without join multiplication.

database optimizationJoinsperformanceMcKinsey &
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.