Which of the following technologies implements inter-device link aggregation, and can be used to build...

M-LAG (Multi-Chassis Link Aggregation Group)is a technology that allowslink aggregation across two physical devices, enabling:

Active-active system deployment

Traffic load balancing

Backup protection without relying on stacking

UnlikeEth-Trunk, which aggregates links on the same device,M-LAGextends this functionality across multiple devices.

LLDPis a discovery protocol andStackrefers to virtual device technology, not specifically inter-device link aggregation.