ACMA Configuration & Troubleshooting of Aruba Solutions 3

Question 1

An Aruba AP is configured for ARM (Adaptive Radio Management). A technician notices clients on 2.4 GHz are experiencing high interference. What ARM feature automatically moves clients to 5 GHz?

Accepted Answer

Band Steering

Answer

Band Steering in ARM proactively encourages dual-band clients to connect to the less congested 5 GHz band.

Question 2

A network admin needs to verify that an Aruba controller is correctly forwarding RADIUS authentication requests. Which command shows RADIUS server reachability and statistics?

Accepted Answer

show aaa authentication-server radius statistics

Answer

'show aaa authentication-server radius statistics' displays packet counts, success/failure rates, and server reachability for configured RADIUS servers.

Question 3

Which parameter in an Aruba SSID profile controls the maximum number of clients that can associate to a single AP radio?

Accepted Answer

Max Clients per Radio

Answer

The 'Max Clients per Radio' setting in the SSID or AP radio profile caps concurrent client associations per radio.

Question 4

During troubleshooting, an admin runs 'show datapath session table' on an Aruba controller. What does this command reveal?

Accepted Answer

Active forwarding sessions including source/destination IPs, ports, and flags

Answer

The datapath session table shows all active Layer 4 sessions being forwarded through the controller's datapath engine.

Question 5

An Aruba Instant network uses an external RADIUS server for 802.1X. After adding a second IAP to the cluster, some clients fail authentication. What is the most likely cause?

Accepted Answer

The RADIUS server's NAS client list does not include the new IAP's IP address

Answer

RADIUS servers authenticate NAS clients by IP; if the new AP's IP is not added as an allowed NAS client, authentication requests are rejected.

(ACMA) Aruba Certified Mobility Associate Practice Test

(ACMA) Aruba Certified Mobility Associate Practice Test

ACMA Configuration & Troubleshooting of Aruba Solutions 3