单项选择题
A.show ip protocols
B.show running-config
C.show ip ospfneighbor
D.show ip ospfborder-routers
单项选择题 Which command should you use to verify what networks are being routed by a given OSPF process（）
多项选择题 While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）
单项选择题 Part of the routing table of router PG1 is displayed below: From analyzing the above command output,what is the administrative distance of the external EIGRP routes（）