EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
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1. Which of the following is a primary goal of the FIDO protocol?
A. Encrypting email messages
B. Enhancing secure authentication without passwords
C. Data compression
D. Network routing
FIDO aims to reduce reliance on passwords by using strong
authentication methods like biometrics and security keys.
2. Which device is commonly used for FIDO authentication?
A. USB flash drive
B. Security key
C. Hard disk
D. Smart thermostat
Security keys are hardware tokens that implement FIDO standards for
passwordless authentication.
3. Which type of authentication does FIDO support?
A. Password-only
B. Passwordless and multi-factor authentication
C. Biometric-only offline authentication
D. Certificate signing
,FIDO protocols enable secure passwordless login and multi-factor
authentication for improved security.
4. What is the standard FIDO protocol for web authentication?
A. SAML
B. OAuth 1.0
C. WebAuthn
D. OpenID Connect
WebAuthn is the W3C standard used by FIDO for browser-based secure
authentication.
5. Which component of FIDO handles biometric verification on the
client side?
A. Server database
B. Authenticator
C. Security token service
D. Certificate authority
Authenticators perform biometric verification or PIN checks locally
before authentication.
6. What does UAF stand for in FIDO?
A. Universal Access Framework
B. Unified Authentication Factor
C. Universal Authentication Framework
D. User Access Form
UAF allows users to authenticate using a local device authenticator
without sending passwords to servers.
7. Which FIDO protocol enables two-factor authentication using an
external device?
A. UAF
B. U2F (Universal 2nd Factor)
C. OAuth 2.0
, D. WebAuthn
U2F is designed for using a hardware security key as a second factor in
authentication.
8. Which cryptographic technique is primarily used in FIDO for
authentication?
A. Symmetric AES encryption
B. MD5 hashing
C. Public-key cryptography
D. SHA-1 signatures
FIDO relies on public-key cryptography to securely verify users without
transmitting passwords.
9. Which statement is true about FIDO authentication?
A. Passwords are required on every login
B. Authentication data is stored on the server in plaintext
C. Private keys never leave the client device
D. Server generates all authentication keys
FIDO keeps private keys on the client device, preventing server-side
password breaches.
10. What is a major benefit of FIDO over traditional passwords?
A. Faster data transfer
B. Larger storage capacity
C. Reduced risk of phishing attacks
D. Easier network configuration
Because FIDO uses public-key cryptography, phishing attacks are
ineffective.
11. Which factor is NOT part of FIDO’s multi-factor authentication?
A. Something you know
B. Something you have
C. Something you are