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AWS Certified Solutions Architect study material · question 133 of 500

Which two facts about MFA on AWS accounts are correct? Choose two.

  1. MFA can be enabled for standalone, management and member account root users
  2. Enabling MFA on the root user enrols all IAM users automatically
  3. Only hardware TOTP tokens are supported for the root user
  4. One physical security key can serve several root users and IAM users
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Answer: D. One physical security key can serve several root users and IAM users
A. MFA can be enabled for standalone, management and member account root users

A single security key can act as the second factor for several identities, and root MFA is available for every account type. IAM users configure MFA separately.

Source: AWS Multi-factor authentication in IAM (Amazon Web Services) — Passkeys and security keys

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