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?（）
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.
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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
A. The output describes the contents of a Type 5 LSA
B. 3.3.3.3 identifies a ro uter as being the router performing redistribution
C. R1's metric for its best route to reach the router with RID 9.9.9.9 is 100
D. The router with RID 3.3.3.3's metric for its best route to reach the router with RID 9.9.9.9 is 100
A. Let the metrics default.
B. Use each redistributed route's OSPF metric using the redistribute command's metric transparent keywords.
C. Set the metric using the default - metric router subcommand.
D. Redistribution is not allowed between two OSPF p rocesses.
Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP.
Which one of the following is true?（）
A. R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.
B. For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.
C. For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.
D. No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.
Examine the following excerpt from the show ip eigrp topology 10.2.2.0/24 command on router R1.Which answer can be verified as definitely true based on this output?（）
External data:
Originating router is 10.1.1.1
AS number of route is 1
External protocol is OSPF, external metric is 64
Administrator tag is 0 (0x00000000)
A. R1 is the router that redistributed the route
B. R1's metric to reach subnet 10.2.2.0/24 is 64
C. The route was redistributed on a router that has a router ospf 1 command configured
D. R1 is redistributing a route to prefix 1 0.2.2.0/24 into OSPF
A. Let the metrics default.
B. Set the metric components using the redistri bute command's metric keyword.
C. Set the metric components using the default - metric router subcommand.
D. Set the integer (composite) metric using the redistribute command's metric keyword.
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
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
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 - worker's 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
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
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
最新試題
Which of the following are true of both OSPFv2 and OSPFv3?（）
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Router R1 sits at an Enterprise branch office, using both the Internet and a leased line to another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise.Which of the following is most likely to be useful on the branch router?（）
Look at the following configuration below and select the statements that are true.（）RD2(config)#router ospf 100RD2(config - router)# distance 180 10.1.10.1 0.0.0.0 match - meRD2(config -router)#!RD2(config - router) #ip access - list standard match - meRD2(config - std - nacl)# permit host 172.16.0.0
The following output on Router R1 lists details of a BGP route for 190.1.0.0/16. Which of the following is true based on this output?（）R1# show ip bgp 19 0.1.0.0/16BGP routing table entry for 190.1.0.0/16, version 121Paths: (1 available, best #1, table Default - IP - Routing - Table)Advertised to update - groups:11 2 3 41.1.1.1 from 2.2.2.2 (3.3.3.3)Origin IGP, metric 0, localpref 100, valid, internal, best
Router R1, a branch router, connects to the Internet using DSL. The engineer plans to use a configuration with a dialer interface. The answers list a feature and interface on which the feature could be configured.Which combinations accurately describe the interface under which a feature will be configured?（）
The following configuration exists on a router on one end of an IPv6 tunnel. Although the configuration added so far is correct, the configuration is incomplete. Which type of tunnel is most likely to be intended by the network engineer？（）interface loopback 1ip address 192.168.1.1 255.255.255.255interface tunnel 2ipv6 address 2002:C0A8:10 1::1/64tunnel source loopback 1
Which of the following IPv6 tunneling mechanisms support IPv6 IGP routing protocols?（）
An engineer is trying to summarize the following networks using the "ip summary- address eigrp"command:10.8.88.0/2510.8.89.48/2910.8.64.96/27Which network and subnet mask below would be the smallest EIGRP summary address to include all three subnets?（）