フリー問題

問題文

Receivers have begun to pull content through the rendezvous point, and the router closest to them sees that a direct path would be shorter. What does the documentation give as the gain when it switches over?

選択肢

1. The move keeps the load off the shared tree and the border tables around it
2. The move keeps the load off the shared tree and the core links around it
3. The move keeps the load off the shared tree and the local queues around it
4. The move keeps the load off the shared tree and the spare cards around it