Interview OS

Job application tracking and interview preparation workspace.

Home About Features Pricing Community Careers Resources Blog Contact

Log in Get Started

The private, engineer-first career memory system. Built to help you track applications, reflect on interviews, and build a personal knowledge base.

Product

Manifesto
Features
Blog
Documentation

Legal

Privacy Policy
Terms of Service

Support

Contact Us
Email Support

© 2026 Interview OS. All rights reserved.

Designed and developed byMehedy Hasan Ador

INTERVIEW

OS

Community Interview Questions

Explore interview questions shared by job seekers and professionals, then use them to prepare with more context.

How would you implement an LRU cache with O(1) get and put?

AlgorithmsData StructuresLRU Cache

by Mehedy Hasan Ador

Explain BFS and DFS — when would you use each in a real application?

AlgorithmsGraphBFS+1

by Mehedy Hasan Ador

How do hash maps handle collisions, and why is average O(1) but worst O(n)?

Data StructuresHash MapAlgorithms

by Mehedy Hasan Ador

How do Service Workers enable Progressive Web Apps (PWAs)?

Web APIsService WorkersPWA+1

by Mehedy Hasan Ador

WebSocket vs Server-Sent Events vs polling — when would you use each?

Web APIsWebSocketSSE+1

by Mehedy Hasan Ador

Monorepo vs polyrepo — what are the trade-offs?

GitMonorepoArchitecture+1

by Mehedy Hasan Ador

Git rebase vs merge — when would you use each?

GitRebaseMerge+1

by Mehedy Hasan Ador

What is service discovery and how do microservices find each other?

MicroservicesService DiscoveryKubernetes

by Mehedy Hasan Ador

What is the Saga pattern for distributed transactions across microservices?

MicroservicesDistributed TransactionsSaga

by Mehedy Hasan Ador