Q11. How does structured concurrency and cancellation work with coroutines?
A coroutine is cooperative: cancellation sets a flag that the coroutine must observe. Suspend functions from `kotlinx.coroutines` check automatically and throw `Cancellat...
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (16 available).
Active:
Tag: concurrency ×
Q12. What is the context package used for and how do you use it correctly?
`context.Context` carries deadlines, cancellation signals and request-scoped values across API boundaries and goroutines. It is how cancellation and timeouts propagate th...
Q13. Implement the bounded buffer producer-consumer problem using semaphores.
The bounded buffer is solved with one mutex plus two counting semaphores, `empty` and `full`. ```c sem_t empty, full; pthread_mutex_t m; buffer[N]; int head, tail; void p...
Q14. What is the Global VM Lock and how does it affect concurrency?
MRI, the standard Ruby implementation, has a Global VM Lock: only one thread executes Ruby bytecode at a time, so threads do not provide CPU parallelism for pure Ruby cod...
Q15. How do you choose between mutexes and channels for concurrency?
Go's advice is "do not communicate by sharing memory; share memory by communicating", but both tools are legitimate. - Use a mutex when protecting a small piece of shared...
Q16. How would you design a thread pool?
A thread pool keeps a set of worker threads alive so tasks avoid per-request thread-creation cost. Core pieces: - A task queue, typically bounded, holding runnable work. ...