Multicast Transmission Optimization (MTO) improves wireless multicast efficiency by allowing an Aruba AP to transmit broadcast and multicast frames at a higher data rate than the normally configured basic multicast rate. In Aruba Instant and Aruba Central WLAN configuration, the AP determines the optimized rate using the lowest unicast rate among all associated clients , ensuring that every associated client can still receive the multicast transmission reliably. Aruba Networking
Critically, Aruba documentation states that when this feature is enabled, multicast traffic can be transmitted at up to 24 Mbps . Therefore, B is the correct answer . In the documented Instant implementation, the normal default multicast transmission rates are typically much lower—1 Mbps on 2.4 GHz and 6 Mbps on 5 GHz—so MTO can substantially reduce airtime consumed by multicast traffic. Aruba Networking
Option A is incorrect because Aruba uses the lowest , not highest, unicast rate of associated clients. Option C incorrectly specifies 48 Mbps. Option D is also incorrect because MTO ' s rate-selection mechanism is based on client unicast data rates , not client latency. Aruba Networking
Study Guide Topics: WLAN Optimization, Multicast Transmission Optimization, Broadcast/Multicast Traffic, Wireless Data Rates, Aruba Instant/Central WLAN Profiles.
