COMPUTER NETWORKING

Detailed explanation-1: -Historically the most common form of authentication, Single-Factor Authentication, is also the least secure, as it only requires one factor to gain full system access. It could be a username and password, pin-number or another simple code.

Detailed explanation-2: -Don’t use commonly used passwords such as 123456, the word “password, ‘’ “qwerty”, “111111”, or a word like, “monkey”. Do make sure your user passwords are at least eight characters long. The more characters and symbols your passwords contain, the more difficult they are to guess.

Detailed explanation-3: -1. Biometric Authentication Methods. Biometric authentication relies on the unique biological traits of a user in order to verify their identity. This makes biometrics one of the most secure authentication methods as of today.

Detailed explanation-4: -Password-based authentication. Passwords are the most common methods of authentication. Multi-factor authentication. Certificate-based authentication. Biometric authentication. Token-based authentication.