The packet decode excerpt shows a QoS Data frame, not a multicast-control low-rate frame.

Frame control flags indicate:

Subtype: QoS Data → This is unicast, not broadcast/multicast

From DS bit = 1, To DS bit = 0 → Wireless unicast from AP to client

High-rate MCS data present → Indicates optimized transmission speed

This behavior aligns directly with Dynamic Multicast Optimization (DMO).

Aruba DMO Overview — Official Behavior

ArubaOS Wi-Fi optimization guides state:

“Dynamic Multicast Optimization converts multicast packets into unicast transmissions and sends them using the highest supported data rate, improving delivery reliability and efficiency.”

This means:

Before DMO

After DMO

Multicast sent at lowest basic rate (e.g., 6 Mbps)

Converted to unicast → can use high PHY rates (e.g., 300 Mbps+)

High drop probability

Reliable delivery

Poor performance

Optimized throughput

The packet remaining a Data/QoS Data subtype is correct — DMO does not change the 802.11 frame Type field; it changes transmission handling and rate control.

Why the Other Options Are Incorrect

Option

Why Incorrect

A BCMCO does not exist — incorrect feature name

B Type consistency is not the key validation point — rate increase is

D Packet length always appears in frame decode; optimization never hides it

✅ Final Verified Answer: C

The data rate increased from 6 Mbps to 300 Mbps because Dynamic Multicast Optimization (DMO) was configured.