Which of the following is NOT among the four authentication types available for Citrix ADC AAA multifactor authentication?

Which of the following is NOT among the four authentication types available for Citrix ADC AAA multifactor authentication?

• A. RADIUS
• B. OAuth
• C. LDAP
• D. NTLM

Answer: (D)

Citrix ADC AAA multifactor authentication relies on external authentication mechanisms such as RADIUS, OAuth, LDAP, and SAML to integrate with MFA services or identity providers. NTLM is a Windows-specific authentication protocol used for domain logons and is not exposed as a multifactor authentication option in this ADC feature set. Therefore, NTLM is not among the four supported MFA authentication types. When implementing MFA on ADC, you’d typically route authentication to a RADIUS MFA server or use an IdP via OAuth or SAML, or authenticate against LDAP.

Citrix ADC AAA multifactor authentication relies on external authentication mechanisms such as RADIUS, OAuth, LDAP, and SAML to integrate with MFA services or identity providers. NTLM is a Windows-specific authentication protocol used for domain logons and is not exposed as a multifactor authentication option in this ADC feature set. Therefore, NTLM is not among the four supported MFA authentication types. When implementing MFA on ADC, you’d typically route authentication to a RADIUS MFA server or use an IdP via OAuth or SAML, or authenticate against LDAP.