When configuring authentication in VPE, which methods can be used for user authentication? (Select all that apply)

Question

Options

• ALDAP
• BRADIUS
• CSAML
• DNTLM
• ETACACS+
• FOAuth

• A
  88% (28)
• E
  6% (2)
• F
  6% (2)

Explanation

VPE supports LDAP, RADIUS, SAML, and NTLM because these are all established user authentication protocols: LDAP queries directory services (like Active Directory), RADIUS provides centralized AAA for network access, SAML enables federated SSO via XML assertions, and NTLM is Microsoft's challenge-response protocol for Windows environments - all of which authenticate who a user is.

TACACS+ (E) is incorrect because it is primarily designed for authenticating administrators to network devices (routers, switches), not end users to applications or platforms - it's a device management AAA protocol, not a user identity protocol in this context.

OAuth (F) is incorrect because OAuth is an authorization framework, not an authentication protocol - it delegates access permissions, not identity verification. (OpenID Connect, which sits on top of OAuth, handles authentication, but OAuth alone does not.)

Memory tip: Think of the four correct answers as "LRSN - Legit Real Sign-in Networks" (LDAP, RADIUS, SAML, NTLM). The two wrong answers fail a simple test: TACACS+ is for devices, and OAuth is for access delegation - neither authenticates a user's identity directly.

No community discussion yet for this question.