一个不到50人的班级栽种一批树苗，若每个人分配后棵树苗，则剩下38棵；若每个学生分配9棵树苗，则还

te command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0".Whic h of the following is most likely to have caused this output to occur on R1？（）

A. R1 has been configured with an ip default- network 2.0.0.0 command.

B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.

C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

D. Another router has been configured with an ip default - network 2.0.0.0 command.

E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

ip route. Which of the following answers is most likely to be true, based on thi s output？（）B 128.107.0.0 [20/10] via 11.11.11.11, 00:02:18

A. This router has set the Weight of this route to 10.

B. This router‘s BGP table lists this route as an iBGP route.

C. This router‘s MED has been set to 10.

D. This router‘s BGP table lists an AS_Path length of 10 for this route.

r R1.Which answer can be verified as definitely true based on this output？（）External data:Originating router is 10.1.1.1AS number of route is 1External protocol is OSPF, external metric is 64Administrator 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

er 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: 3.3.3.3LS Seq Number: 8000000DChecksum: 0xE43ALength: 28Network Mask: /0TOS: 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

In what BGP neighbor state is neighbor 1.1.1.1？（）Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/DownState/PfxRcd1.1.1.1 4 1 60 61 26 0 0 00:45:0102.2.2.2 4 3 153 159 26 0 0 00:38:131

A. Idle

B. Opensent

C. Active

D. Established

l the output related to subnet 10.11.1.0/24. How many feasible successor routes does R1 have for 10.11.1.0/24？（）P 10.11.1.0/24, 2 successors, FD is 2172419via 10.1.1.2 (2172423/2 8167), Serial0/0/0.1via 10.1.1.6 (2172423/28167), Serial0/0/0.2

A.0

B.1

C.2

D.3

ut from Router R1？（）R1show ip ospf virtual - linksVirtual Link OSPF_VL0 to router 4.4.4.4 is upRun as demand circuitDoNotAge LSA alloweD.Transit area 1, via interface FastEthernet0/1, Cost of using 3

A. R1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.

B. The ping 4.4.4.4 command on R1 must currently be successful.

C. R1‘s Fa0/0 OSPF cost is 3.

D. 4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.

m this output？（）R1 show ip route 180.1.1.0 255.255.255.240Routing entry for 180.1.1.0/28Known via "bgp 2", distance 20, metric 0Tag 3, type externalLast update from 192.168.1.2 00:10:27 agoRouting Descriptor Blocks:* 192.168.1.2, from 19 2.168.1.2, 00:10:27 agoRoute metric is 0, traffic share count is 1AS Hops 2Route tag 3

A. The type of BGP peer (iBGP or eBGP) that advertised this route to R1

B. R1‘s ASN

C. The next - hop router‘s ASN

D. The AS_Path length

bout R1？（）R1 show ip v6 interface f0/0FastEthernet0/0 is up, line protocol is upIPv6 is enabled, link - local address is FE80::213:19FF:FE12:3456No Virtual link - local address(es):Global unicast address(es):2000::4:213:19FF:FE12:3456, subnet is 2000:0:0:4::/64 [EUI]Jo ined group address(es):FF02::1FF02::2FF02::1:FF:12:3456

A. R1‘s solicited node multicast address is FF02::1:FF:12:3456.

B. R1‘s 2000::4:213:19FF:FE12:3456 address is a global unicast with all 128 bits statically configured.

C. Address FF02::2 is R1‘s solicited node multicast.

D. R1‘s solicited node multicast, not listed in this output, would be FF02::213:19FF:FE12:3456.

our other working OSPF routers in that subnet. R1 is neither the designated router (DR) nor backup DR (BDR). OSPF is working correctly on all five routers.Which of the following is true on R1？（）

A. The show ip ospf neighbors command lists two neighbors off Fa0/0.

B. The show ip ospf neighbors command lists four neighbors off Fa0/0.

C. The show ip ospf neighbors command lists two neighbors off Fa0/0 in the FULL state.

D. The show ip ospf neighbors command lists two neighbors off Fa0/0 in the DISCO state.