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AWS Certified Solutions Architect study material · question 134 of 500

Which three MFA types does AWS accept?

  1. Smart cards, biometrics, and SMS codes
  2. Client certificates, IP allow lists, and hardware tokens
  3. Passkeys and security keys, virtual authenticator apps, and hardware TOTP tokens
  4. SMS codes, email codes, and voice callbacks
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Answer: C. Passkeys and security keys, virtual authenticator apps, and hardware TOTP tokens

Those three are the MFA types AWS supports, and the FIDO-based passkeys and security keys are the phishing-resistant option.

Source: AWS Multi-factor authentication in IAM (Amazon Web Services) — MFA types

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