单项选择题
A. Subnet number
B. Next - hop router IP address of the route
C. Whether the route is an E1 or E2 route
D. The ro ute's tag
E. The number of router hops between the router and the subnet
单项选择题 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, external metric 10. Under what conditions will R1 choose as it s best route the route through R22?（）
单项选择题 Examine the following excerpt from the show ip ospf database asbr -summary command on router R1 (RID 1.1.1.1). Which answer can be verified as definitely true based on this output?（） LS Type: Summary Links (AS Boundary Router) Link State ID: 9.9.9.9 (AS Boundary Router address) Advertising Router: 3.3.3.3 LS Seq Number: 8000000D Checksum: 0xE43A Length: 28 Network Mask: /0 TOS: 0 Metric: 100
多项选择题 Process OSPF 1 is redistributing routes from process OSPF 2. Which of the following methods may be used to set the metrics of the redistributed routes?（）