Option A is correct , below are the explanation
Authentication, Authorization, and Accounting (AAA) is a framework for configuring.
management security in a consistent way. Three services make up AAA:
 Authentication—Validates the user identity. Authentication takes place before
the user is enabled access to switch services.
 Authorization—Determines which services the user is enabled to access.
Examples of services include access to the switch management console and
access to exec mode.
 Accounting—Collects and sends security information about switch management
console users and switch management commands
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Praveen2929
2Â years, 12Â months agoPraveen2929
3Â years agolobana
3Â years, 7Â months ago