Exam AZ-900 topic 1 question 288 discussion

Knowing an answer (something you know) and a password (something you know) is not MFA.

This is a dumb question with only one possible answer bases on a process of elimination: 1) It is NOT - Azure Active Directory B2C provides business-to-customer identity as a service. . 2) It is NOT Managed identities as this is based on TOKENS and applications DO NOT NEED to manage any credentials. 3) It is not Azure role-based access control (Azure RBAC) as roles are naught to do with authentication. It only leaves MFA: Multi-factor authentication is an electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more pieces of evidence to an authentication mechanism. As already mentioned a password is "something we know" and a security question is also "something we know" Proper MFA Authentication using two or more factors to achieve authentication. Factors are (i) something you know (e.g., password/personal identification number); (ii) something you have (e.g., cryptographic identification device, token); and (iii) something you are (e.g., biometric).

got this on 22nd

What is Microsoft Azure operated by 21Vianet? Microsoft Azure operated by 21Vianet (Azure China) is a physically separated instance of cloud services located in China. It's independently operated and transacted by Shanghai Blue Cloud Technology Co., Ltd. ("21Vianet"), a wholly owned subsidiary of Beijing 21Vianet Broadband Data Center Co., Ltd..

"multi-factor authentication" is the answer.

Something you know, typically a password. Something you have, such as a trusted device that's not easily duplicated, like a phone or hardware key. Something you are - biometrics like a fingerprint or face scan

Agree.. it should be 2 out of 3 Something you know Something you have Something you Are...