intermediateSpring Security Practices168 of 469
How would you debug a 401 Unauthorized error?
Tests whether you'd check the request's actual Authorization header first -- missing/expired/malformed token, wrong signing key, clock skew on expiry, or a misconfigured SecurityFilterChain rejecting it before it reaches the resource -- rather than guessing at the business logic.
Ready to master this question?
Generate a complete walkthrough — background, the full answer in plain language, a working code example explained line by line, a real-world scenario, common mistakes, and how this same question gets asked in different ways.
Sign in to generate a response