【单选题】The tourists will find the guide book is of even ________ practical value than they thought, as it shows different routes to the places they are going to.
【单选题】Router R1 sits inside OSPF area 1. Router R2 redistributes an E1 route into OSPF for prefix 2.2.2.0/24, with external metric 20. Router R22 redistributes an E2 route for the same prefix/length, extern...
A.
R1 will always choose the route through R22.
B.
As long as R1's best internal OSPF cost to reach R22 is less than 10.
C.
As long as R1's best internal OSPF cost to reach R22 is less than 20.
D.
R1 will never choo se the route through R22 if the E1 route through R2 is available.