Which of the following statements regarding a multicast distribution tree is false?

The statement that the PIM-DM protocol can generate both RPT trees and SPT trees is inaccurate. PIM-DM (Protocol Independent Multicast - Dense Mode) primarily uses a single source-based tree, known as a Shortest Path Tree (SPT). This protocol does not implement a Shared Tree (RPT) method in the same way that PIM-SM (Sparse Mode) does. PIM-DM is designed for environments with a high density of receivers and thus focuses on optimizing performance using SPTs, which connect directly to the source, rather than relying on a shared distribution tree.

In terms of understanding multicast distribution trees, it's essential to recognize that PIM-SM is capable of generating both RPT trees and SPT trees as part of its operations. In contrast, PIM-DM is specifically optimized for dense environments and does not typically require the complexity of RPT trees. Thus, the accuracy of the claim hinges on the understanding of the protocol functionalities and their typical application scenarios.