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Authentication Interview Overview

Continuously accumulating authentication-related interview questions and key points, organized from basic to advanced.

Lv1 Basics​

Lv2 Advanced​

  • Where can tokens be stored? What security concerns should be considered? (To be added)
  • How does the frontend automatically attach a token to every API request? (To be added)
  • How should token expiration be handled? (To be added)

Lv3 System Design​

  • Why do microservice architectures prefer JWT? (To be added)
  • What are the drawbacks of JWT? How do you handle active logout? (To be added)
  • How can you reduce or prevent token theft? (To be added)

Lv4 Advanced Extensions​

  • To implement "force logout on all devices," how would you do it with Session vs Token architectures? (To be added)
  • What authentication strategy is commonly used with SSO (Single Sign-On)? (To be added)