多项选择题

For a router to successfully redistribute routes between OSPF and EIGRP, which of the following are true?（）

A. The router must have one routing protocol configured, but configuration for both routing protocols is not necessary
B. The router must hav e at least one working link connected to each routing domain
C. The redistribute command must be configured under EIGRP to send the routes to OSPF
D. The redistribute command should be configured under OSPF to take routes from EIGRP into OSPF

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单项选择题Which of the following answers is the least likely reason for an engineer to choose to use route redis tribution?（）

A. To exchange routes between merged companies
B. To give separate control over routing to different parts of one company
C. To support multiple router vendors
D. To knit together an OSPF area if the area becomes discontiguous

多项选择题Ten routers, R1 through R10, connect in a partial mesh over Frame Relay. For the mesh, R1 and R2 have PVCs connected to all other routers, but Routers R3 through R10 act as branch routers, with only two PVCs - one to R1 and one to R2. The routers u se IP subnet 10.1.1.0 24, with addresses 10.1.1.1, 10.1.1.2, and so on, through 10.1.1.10, respectively. The routers all use Inverse ARP to learn Frame Relay mapping information. All routers use a multipoint subinterface with network type point - tomultip oint nonbroadcast. A co - workers implementation plan lists lots of configuration commands related to this design. The design states that all hosts should be able to ping all other hosts. Which commands are required for proper functioning of OSPF in this case?（）

A. frame - relay map commands on R3 - R10 referencing the other routers in this group
B. Nine OSPF neighbor commands on each router
C. Nine OSPF neighbor commands on R1 and R2, with only two such commands on R3 - R10
D. R1 and R2 with ip ospf prio rity 1 commands to ensure they become DR and BDR
E. R3 - R10 with ip ospf priority 0 commands to ensure they do not become DR or BDR

单项选择题Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface. What command would make this router not use a DR, and dynamically discover OSPF neighbors?（）

A. ip ospf network broadcast
B. ip ospf network non - broadcast
C. ip ospf network point - to - multipoint
D. ip ospf network point - to - multipoint non - broadcast

单项选择题Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface. What command would make this router not use a DR and require static OSPF neighbor definition?（）

A. ip ospf network broadcast
B. ip ospf netw ork non - broadcast
C. ip ospf network point - to - multipoint
D. ip ospf network point - to - multipoint non - broadcast

单项选择题Several links have been broken so th at for the next day or two, what was formerly a contiguous area 0 has been broken into two parts. However, both parts of area 0 have working links into area 1 using routers with RID 1.1.1.1 and 2.2.2.2. Which answers list the command on the router with RID 1.1.1.1 to create a virtual link to help solve this temporary problem?（）

A. area 0 virtual - link 2.2.2.2
B. area 1 virtual - link 2.2.2.2
C. area 0 source - rid 1.1.1.1 dest - rid 2.2.2.2
D. virtual - link transit - area 1 RID 2.2.2.2