Which of the following security methods BEST describes when a user enters a username and password once for multiple applications?
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A. B. C. D.A.
The security method that BEST describes when a user enters a username and password once for multiple applications is Single Sign-On (SSO).
SSO is a mechanism that allows users to authenticate themselves once and access multiple applications or systems without the need to enter their credentials again. With SSO, a user logs in once and can access all the resources they are authorized to use, including applications, systems, and networks.
SSO simplifies the authentication process for users and reduces the number of login credentials they need to remember. It also improves security by centralizing authentication and access control, reducing the risk of credential theft and unauthorized access.
Permission propagation, on the other hand, is a process that automatically grants or revokes permissions to users based on changes in their roles or group memberships. Inheritance is a mechanism that allows objects, such as files or folders, to inherit permissions from their parent objects. These two methods are related to access control and permissions, but they are not directly related to SSO.
MFA (Multi-Factor Authentication) is a security method that requires users to provide multiple forms of authentication to access a system or application. MFA typically involves a combination of something the user knows, something the user has, or something the user is (such as a fingerprint or facial recognition). MFA is a useful security measure that can help prevent unauthorized access, but it is not directly related to SSO.
In summary, SSO is the security method that BEST describes when a user enters a username and password once for multiple applications.