Cisco Certified Network Professional Practice Test

Which command initiates the AAA configuration on a Cisco device?

1. aaa enabled-model

2. aaa new-model

3. aaa configuration

4. aaa start-model

The correct answer is: aaa new-model

The command that initiates the AAA (Authentication, Authorization, and Accounting) configuration on a Cisco device is "aaa new-model." This command enables the AAA services on the device and allows for the configuration of user authentication methods, access control policies, and logging of account activity. When "aaa new-model" is executed, it effectively switches the device management from the default method of managing user access to a more robust AAA approach. This is essential for network security and management, as it provides a framework to control and track user access to network resources. The correct command is important in a Cisco environment because it allows network administrators to define AAA policies and settings, ensuring that only authorized users can access the system, and that their actions can be logged and audited. This is a fundamental aspect of securing network devices and is widely used across various Cisco systems.