FUNDAMENTALS OF COMPUTER

OPERATING SYSTEMS FOR COMPUTERS

COMPUTER OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
factor-authentication (2FA) involves
A
Username and password
B
username, password and random generated code
C
username and random generated code
D
password and passport
Explanation: 

Detailed explanation-1: -SMS-based 2FA interacts directly with a user’s phone. After receiving a username and password, the site sends the user a unique one-time passcode (OTP) via text message. Like the hardware token process, a user must then enter the OTP back into the application before getting access.

Detailed explanation-2: -For example, we might tend to notice a pattern in 2FA codes, which makes us wonder whether these codes have a logical pattern to them to make them memorable: the majority of six-digit random numbers have at least one repeating digit, and some will have a repeating sequential digit next to each other.

Detailed explanation-3: -Two-factor authentication (2FA), sometimes referred to as two-step verification or dual-factor authentication, is a security process in which users provide two different authentication factors to verify themselves. 2FA is implemented to better protect both a user’s credentials and the resources the user can access.

Detailed explanation-4: -Two-Factor Authentication (2FA) works by adding an additional layer of security to your online accounts. It requires an additional login credential – beyond just the username and password – to gain account access, and getting that second credential requires access to something that belongs to you.

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