If your router is facilitating a CSU/DSU, which of the following commands do you need to use to provide the router with a 64000bps serial link?
A . RouterA(config)#bandwidth 64
B . RouterA(config-if)#bandwidth 64000
C . RouterA(config-if)#clock rate 64
D . RouterA(config-if)#clock rate 64000
Answer: D