Huawei Certified Network Associate – Routing and Switching (HCNA-RS, legacy) — Question 122

Following a failure of services in the network, an administrator discovered that the configuration in one of the enterprise routers had been changed.
What actions can be taken by the administrator to prevent further changes? (Choose three)

Answer options

• A. The administrator should limit access by setting the login privilege of users to 0.
• B. The administrator should configure AAA to manage user authorization on the router.
• C. The administrator should configure an ACL to allow only the administrator to manage the router.
• D. The administrator should configure port-security on the router.

Correct answer: A, B, C

Explanation

The correct actions include setting user privileges to limit access (A), configuring AAA for better user management (B), and implementing an ACL to restrict router management to the administrator only (C). Option D, configuring port-security, is more relevant to securing switch ports rather than preventing configuration changes on a router.