ACMA Controller Architecture 5

Question 1

Which Aruba controller feature enables seamless roaming for clients between APs on different controllers without re-authentication?

Accepted Answer

L3 mobility via inter-controller tunneling

Answer

Aruba's inter-controller mobility tunnel maintains client sessions and preserves IP addresses when a client roams between APs managed by different controllers.

Question 2

What is the function of the Aruba controller's 'anchor controller' in a mobility domain?

Accepted Answer

Maintain the client's original IP and session state during inter-controller roaming

Answer

The anchor controller retains the client's original session, IP address, and firewall role even after the client roams to an AP on a different (foreign) controller.

Question 3

Which Aruba controller configuration object defines the SSID name, encryption type, and authentication method for a wireless network?

Accepted Answer

Virtual AP profile

Answer

A Virtual AP (VAP) profile defines the SSID, security settings (WPA2/WPA3, 802.1X, PSK), and forwarding mode for a wireless network.

Question 4

In Aruba controller-based deployments, what does 'split tunneling' allow a Remote AP (RAP) to do?

Accepted Answer

Bridge corporate traffic to the controller while sending internet traffic locally

Answer

Split tunneling on a RAP routes corporate-destined traffic through the controller tunnel while allowing internet-bound traffic to exit locally, saving WAN bandwidth.

Question 5

Which Aruba controller process is responsible for 802.1X authentication handling and RADIUS communication?

Accepted Answer

authmgr

Answer

The authmgr (Authentication Manager) process on the Aruba controller handles 802.1X state machines and communicates with external RADIUS servers.

(ACMA) Aruba Certified Mobility Associate Practice Test

(ACMA) Aruba Certified Mobility Associate Practice Test

ACMA Controller Architecture 5