Directory Services (LDAP, Active Directory)

The centralized store of identities, groups, and attributes that most enterprise authentication and authorization builds on.

Read

45 min

Practice MCQs

25

Interview QA

25

Edition

v5

Editorial status

Reviewed

Relevant for

Identity and Access Management (IAM) Engineer

Scope: LDAP RFC 4511/4513/4514/4515, Kerberos V5 RFC 4120, and current Microsoft AD DS, CISA, and NIST guidance reviewed 2026-09-04.