Which authentication option is commonly used as a second factor to enhance security in Citrix ADC?

• A. Password-only authentication
• B. NFactor authentication
• C. Single-factor biometric
• D. Certificate-based authentication

Answer: (B)

NFactor authentication is the mechanism designed to add a second factor in Citrix ADC. It provides a flexible, multi-step authentication flow that can chain factors together, such as starting with a password and then prompting for an OTP from an authenticator app, a push verification, or another second factor. This ability to define and enforce MFA flows makes it the common choice for enhancing security on Citrix Gateway/ADC deployments.

Single-factor password-only access remains just one factor and doesn’t give MFA. Biometric or certificate-based methods can be factors, but they are not the overarching framework for combining factors in Citrix ADC; NFactor is the setup you use to implement and manage those second factors in a secure, step-up manner.