Which statement regarding redundant trunk groups (RTGs) is true?

An aggregated interface being a member of a Redundant Trunk Group (RTG) is a true statement because RTGs are designed to provide redundancy and load balancing for traffic across multiple trunked links. An aggregated interface, often formed using protocols like LACP (Link Aggregation Control Protocol), allows multiple physical links to function as a single logical link. In the context of RTGs, this means that you can include these aggregated links, which can help in enhancing redundancy and maximizing throughput.

The purpose of RTGs is to ensure that network services remain available even in the event of a link failure. By allowing aggregated interfaces to be members of an RTG, it promotes efficient use of network resources and provides the resilience needed in an enterprise environment. This configuration allows for better bandwidth management and can help balance the load between the available links within the trunk group.

In other scenarios, having STP and RTG configured on the same interface or allowing members of an RTG to carry different VLANs would not align with the functional integrity of these technologies. Moreover, while an RTG can contain multiple member links, the standard typically dictates a lower limit, hence the specific mention of 16 members can vary depending on the vendor and their specific implementation guidelines.