Final answer:
Routed backbones require significant management to monitor performance, manage routing tables, and troubleshoot issues, making the claim that they need little management false.
Step-by-step explanation:
The statement that one advantage of a routed backbone is that it requires little management is false. Routed backbones generally involve complex structures and the implementation of routing protocols, which require consistent management and reconfiguration to handle changes in network topology, security policies, and routing strategies. Networks with routed backbones often need network administrators to monitor network performance, troubleshoot routing issues, and ensure that routing tables are up-to-date and optimized to prevent loops and bottlenecks.