Technical interview guide
SSO & Federation Protocols (SAML, OIDC)
How a user authenticates once with an identity provider and gets trusted access across many applications.
- Read
- 45 min
- Practice MCQs
- 25
- Interview QA
- 25
- Edition
- v5
- Editorial status
- Reviewed
- Relevant for
- Identity and Access Management (IAM) Engineer
Scope: OIDC Core 1.0, OAuth 2.0 with RFC 9700 BCP, SAML 2.0, SCIM 2.0, and NIST SP 800-63C-4 guidance current 2026-09-04.
Curated: · Written: · Reviewed:
