ACMA Mobility Architecture & Infrastructure 3

Question 1

When an Aruba AP operates in 'split-tunnel' mode, what traffic is sent directly to the local network without going through the controller?

Accepted Answer

Guest or internet-bound traffic defined by policy

Answer

In split-tunnel mode, traffic matching local breakout policies (e.g., guest internet) exits locally while corporate traffic tunnels to the controller.

Question 2

Which layer of the OSI model does Aruba's GRE tunnel between an AP and controller primarily operate at?

Accepted Answer

Layer 3

Answer

GRE tunnels between APs and controllers encapsulate Layer 2 frames within Layer 3 IP packets routed across the network.

Question 3

In Aruba's 'campus AP' deployment model, which device terminates 802.11 associations and processes user authentication?

Accepted Answer

The Mobility Controller

Answer

In campus mode, APs are lightweight and forward all 802.11 frames to the Mobility Controller, which terminates associations and enforces authentication.

Question 4

What Aruba feature allows APs deployed in remote offices to terminate their tunnels to a controller over the internet securely?

Accepted Answer

Remote AP (RAP)

Answer

Remote APs use IPsec to establish a secure tunnel to the controller across the internet, enabling home or branch office deployments.

Question 5

In Aruba's Virtual AP (VAP) architecture, what does each VAP map to on the physical AP?

Accepted Answer

A distinct SSID with its own set of policies

Answer

Each VAP represents an SSID with its own security, QoS, and forwarding policies broadcast by a single physical AP radio.

(ACMA) Aruba Certified Mobility Associate Practice Test

(ACMA) Aruba Certified Mobility Associate Practice Test

ACMA Mobility Architecture & Infrastructure 3