AAA Questions

If you are not sure about AAA, please read our AAA TACACS+ and RADIUS Tutorial.

Question 1

Question 2

Question 3

Explanation

AAA stands for Authentication, Authorization and Accounting.

+ Authentication: Specify who you are (usually via login username & password)
+ Authorization: Specify what actions you can do, what resource you can access
+ Accounting: Monitor what you do, how long you do it (can be used for billing and auditing)

An example of AAA is shown below:

+ Authentication: “I am a normal user. My username/password is user_tom/learnforever“
+ Authorization: “user_tom can access LearnCCNA server via HTTP and FTP“
+ Accounting: “user_tom accessed LearnCCNA server for 2 hours“. This user only uses “show” commands.

Question 4

Explanation

If neither the enable password command nor the enable secret command is configured, and if there is a line password configured for the console, the console line password serves as the enable password for all VTY sessions -> The “enable secret” will be used first if available, then “enable password” and line password.

Reference: https://www.cisco.com/c/en/us/td/docs/optical/cpt/r9_3/configuration/guide/cpt93_configuration/cpt93_configuration_chapter_010000.pdf

Question 5

Question 6