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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

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: