It confines network instability to a single area of network.
It increases the routing overhead of the network
It supports VLSM
It routes between Autonomous Systems.
It allows extensive control of routing updates
None of the above
第1题：
You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds.What could be the cause of this problem?（）
A. OSPF authentication errors between some of the routers
B. Two routers have the same OSPF router ID
C. Issues with mistuned OSPF timers
D. OSPF LSA pacing issues between some of the routers
E. OSPF neighbor adjacency problems between some of the routers
第2题：
A. It confines network instability to a single area of network.
B. It increases the routing overhead of the network
C. It supports VLSM
D. It routes between Autonomous Systems.
E. It allows extensive control of routing updates
第3题：
A. Accept all OSPF routes and install them into the 3 routing table
B. Accept all OSPF routes and install them into the inet7.0 routing table
C. Accept all OSPF routes and install them into the inet4.0 routing table
D. Accept all OSPF routes and install them into the inet.0 routing table
第4题：
What are two characteristics of Frame Relay point-to-point subinterfaces?（）
第5题：
A.They create split-horizon issues
B.They require a unique subnet within a routing domain
C.They emulate leased lines
D.They are ideal for full-mesh topologies
E.They require the use of NBMA options when using OSPF
第6题：
A. It confines network instability to a single area of network.
B. It increases the routing overhead of the network
C. It supports VLSM
D. It routes between Autonomous Systems.
E. It allows extensive control of routing updates
F. None of the above
第7题：
A. Each OSPF area requires a loopback interface to be configured.
B. Areas may be assigned any number from 0 to 65535.
C. Area 0 is called the backbone area.
D. Hierarchical OSPF networks do not require multiple areas.
E. Multiple OSPF areas must connect to area 0.
F. Single area OSPF networks must be configured in area 1.
第8题：
You have implemented mutua l route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one of the EIGRP routers within the EIGRP routing domain, you are seeing some, but not all of the expected routes.What should you verify to troubleshoot this problem?（）
A. The border router is using a proper seed metric for OSPF
B. The border router is using a proper seed metric for EIGRP
C. The administrative distance is set for OSPF and EIGRP
D. The missing OSPF routes are present in the routing table of the border router
E. The subnet keyword on the border router in the redistribute OSPF command
第9题：
What are some of the characteristics of the OSPF routing protocol?（）
第10题：
You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds. What could be the cause of this problem?（）