ImplementationQuestion 51 of 100
Requiring a password plus a one-time code from a phone app is an example of:
a.Multifactor authentication
b.Single sign-on
c.Federation
d.Role-based access
Explanation
Multifactor authentication combines two or more independent factor categories, here something you know and something you have. This greatly reduces the risk from a stolen password alone. An attacker would need to defeat both factors.
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