Which three multi-factor authentication methods can be used to authenticate access to the firewall? (Choose three.)

The correct answer is A. One-time password C. SMS D. Voice. PAN-OS supports the following MFA methods for authenticating access to the firewall: One-time password (OTP/TOTP), SMS (text message codes), and Voice (automated phone call with a code). These are delivered through integration with MFA vendors such as Duo, Okta, or RADIUS-based…

Submitted by jordan8· Apr 18, 2026Deploy and Configure

Question

Options

AOne-time password
BUser certificate
CSMS
DVoice
EFingerprint

How the community answered

(46 responses)

A
96% (44)
B
2% (1)
E
2% (1)

Explanation

PAN-OS supports the following MFA methods for authenticating access to the firewall: One-time password (OTP/TOTP), SMS (text message codes), and Voice (automated phone call with a code). These are delivered through integration with MFA vendors such as Duo, Okta, or RADIUS-based providers. User certificates (B) are a valid authentication factor but are treated as standard certificate-based authentication rather than an MFA method in PAN-OS. Fingerprint (E) biometric authentication is not natively supported by PAN-OS.

Topics

#Multi-factor Authentication#Authentication Methods#Firewall Access Control

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