Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces （respectively), cu

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• If you were to set up a VLAN trunk over a Fast Ethernet link on switch R1，  which trunk mode  would you set the local port to on R1 if you wanted it to respond to requests from its link partner  （R2） and become a trunk？ （）

  A .  Auto B .  Negotiate C .  Designate D .  No negotiate

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• Refer to the exhibit. Routers A and B are directly connected and running OSPF， but they are unable to form a neighbor relationship. What is the most likely cause？（）https://assets.asklib.com/images/image2/2018072408474251714.jpg

  A .  The routers are not on the same network. B .  The network statements do not match. C .  The process number does not match. D .  The MTU does not match. E .  The OSPF cost does not match. F .  There is a physical issue with the cable.

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• R1 and R2 exchange HSRP between each other in the Company network.  In which three HSRP  states do routers send hello messages？（）

  A .  Learn B .  Speak C .  Standby D .  Listen E .  Active F .  Remove

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• Two directly connected routers， R1 and R2， are both configured for OSPF graceful restart. R2 is able to switch packets in hardware， but R1 is not. If a network administrator logs on to R2 and performs a system reload， which will be the result？（）

  A . Traffic forwarded from R2 to or through R1 will continue to be forwarded based on the forwarding table state at the time of the reload. B . R2 will continue to forward traffic to R1， but R1 will drop the traffic because its neighbor adjacency with R2 has failed. C . R2 will continue forwarding traffic to and through R1， but R1 will drop this traffic because it is not capable of maintaining its forwarding state. D . All the traffic R2 is forwarding to or through R1 will be dropped while OSPF rebuilds its neighbor adjacency and forwarding tables.

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• Routers R1 and R2 use HSRP so that one router will back up the other should there be a failure.   Which two statements are true about the Hot Standby Router Protocol （HSRP）？ （）

  A .  Load sharing with HSRP is achieved by creating multiple subinterfaces on the HSRP routers.   B .  Routers configured for HSRP can belong to multiple groups and multiple VLANs. C .  Load sharing with HSRP is achieved by creating HSRP groups on the HSRP routers. D .  All routers configured for HSRP load balancing must be configured with the same priority.   E .  Routers configured for HSRP must belong to only one group per HSRP interface.

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• If you were to configure an ISL Ethernet trunk between two Cisco switches， named R1 and R2，   what would you have to include at the end of the link for the trunk to operate correctly？ （）

  A .  An identical VTP mode. B .  An identical speed/duplex. C .  An identical trunk negotiation parameter. D .  An identical trunk encapsulation parameter.

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• Refer to the exhibit. Routers A and B are directly connected and running OSPF， but they are unable to form a neighbor relationship. What is the most likely cause？（）https://assets.asklib.com/images/image2/2018072408592345384.jpg

  A . The routers are not on the same network. B . The network statements do not match. C . The process number does not match. D . The MTU does not match. E . The OSPF cost does not match. F . There is a physical issue with the cable.

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• R1 and R2 are switches that communicate via VTP. What is the default VTP advertisement  intervals in Catalyst switches that are in server or client mode？（）

  A . 30 seconds B . 5 minutes C . 1 minute D . 10 seconds E . 5 seconds F . None of the other alternatives apply

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• 根据下图，假设所有路由器接口都配置正确且正常工作，假设R2上OSPF配置正确，配置在R1上默认路由会怎么影响R2的工作？（）https://assets.asklib.com/images/image2/2018072311185735240.jpg

  A . 任何到达一个和路由器R1非直连的网络的数据包都会被丢弃 B . 任何到达一个和路由器R2非直连的网络的数据包都会被丢弃 C . 任何到达一个和路由器R2非直连的网络的数据包都会即时被丢弃，因为R1上缺少网关 D . 直连在R2上的网络将不能够和172.16.100.0，172.16.100.128，172.16.100.64这些子网通讯 E . 任何目的地没有在R2的路由表中的数据包，R2将会定向到R1，R1会发送哪个数据包到R2，这样路由环路产生

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• Refer to the exhibit. Routers R1 and R2 are running EIGRP and have converged. On the basis of the information that is presented, which statement is true? （）https://assets.asklib.com/images/image2/2018073011042561240.jpg

  A . Both outgoing and incoming routing updates on R1 will be permitted because the d istribute - list 20 out Serial0/0 command cannot be used with association with the outgoing interface. B . All incoming routing updates from R2 will be suppressed, but the outgoing updates will continue to be sent. C . Both outgoing and incoming routing up dates on R1 will be stopped because of the passive - interface Serial0/0 configuration statement. D . All outgoing routing updates from router R1 to router R2 will be suppressed, but the inbound updates will continue to be received.

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• 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

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• Refer to the exhibit. OSPF is configured on all routers in the network. On the basis of the show ip ospf n eighbor output, what prevents R1 from establishing a full adjacency with R2? （）https://assets.asklib.com/images/image2/2018073015404016990.jpg

  A . Router R1 will only establish full adjacency with the DR and BDR on broadcast multi- access networks. B . Router R2 has been elected as a DR for the broadcast multiaccess network in OSPF area 1. C . Routers R1 and R2 are configured as stub routers for OSPF area 1 and OSPF area 2. D . Router R1 and R2 are configured for a virtual link between OSPF area 1 and OSPF area 2. E . The Hello parameters on routers R1 and R2 do not m atch.

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• Refer to the exhibit. R1 and R2 have been configured to share routing information via EIGRP. What will be the result of the configuration section shown for R2? （）https://assets.asklib.com/images/image2/2018073108583876318.png

  A . Any routes learned by R2 from the interface tied to the 172.16.0.0 network will not be advertised to neighbors on the 192.168.2.0 network. B . Only routes learned by R2 from the interface tied to the 172.16.0.0 network will be advertised to neighbors on the 192.168.2.0 network. C . Only the 172.16.0.0 network will be advertised to neighbors on the 192.168.2.0 network. D . All networks, except the 172.16.0.0 network will be advertised to neighbors on the 192.168.2.0 network .

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• Router R1, in ASN 11, learns a BGP route from BGP peer R22 in ASN 22. R1 and then uses BGP to advertise the route to R2, also in ASN 11. What ASNs would you see in the BGP table on R2 for this route?（）

  A . 22 B . 11 C . 1 D . None

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• Refer to the exhibit. OSPF has been configured on all routers in the network and Area 1 has been configured as a NSSA. Which statement is true about the NSSA Area 1？（）https://assets.asklib.com/images/image2/2018073011483760789.jpg

  A . Only redistributed RIP routes will appear in Area 1. They will be advertised via t ype 7 LSAs B . No redistributed routes can appear in Area 1, only summary routes C . Redistributed RIP and IGRP routes will appear in Area 1. They will be advertised via type 5 LSAs D . Only redistributed IGRP routes will appear in Area 1. They will be advertised via type 7 LSA

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• 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

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• Refer to the exhibit. What statement is true based upon the configuration of router R1 and router  R2？（）https://assets.asklib.com/images/image2/2018073015422145313.jpg

  A .  Router R2 will become the master for Virtual Router 1， and router R1 will become the backup  for Virtual Router 2. B .  Router R1 will become the master for Virtual Router 1， and router R2 will become the backup  for Virtual Router 2. C .  Router R1 will become the active virtual gateway. D .  Router R2 will become the active virtual gateway. E .  The hello and hold timers are incompatible with OSPF type 5 LSAs. F .  The hello and hold timers are incompatible with multi-homed BGP.

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• Routers R1 and R2 are EIGRP neighbors. R1 has been configured with the eigrp stub connected command. Which of the following is true as a result？（）

  A . R1 can learn EIGRP routes from R2, but R2 cannot learn EIGRP routes from R1 B . R1 can send IP packets to R2, but R2 cannot send IP packets to R1 C . R2 no longer learns EIGRP routes from R1 for routes not connected to R1 D . R1 no longer replies to R2's Query messages E . R2n o longer sends to R1 Query message

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• S0/0 on R1 is configured as a multipoint interface to communicate with R2 and R3 in the hub-and-spoke Frame Relay topology shown in the exhibit. Originally, static routes were configured between these routers to successfully route traffic between the attached networks. What will need to be done in order to use RIPv2 in place of the static routes？（）

  <img src='https://img2.soutiyun.com/shangxueba/ask/64407001-64410000/64409000/17b75ef15006e963a847746eb8ec9a38.png' /> A.Configure the no ip subnet-zero command on R1, R2, and R3. B.Dynamic routing protocols such as RIPv2 cannot be used across Frame Relay networks. C.Configure the S0/0 interface on R1 as two subinterfaces and configure point-to-point links to R2 and R3. D.Change the 172.16.2.0/25 and 172.16.2.128/25 subnetworks so that at least two bits are borrowed from the last octet. E.Change the network address configuration to eliminate the discontiguous 172.16.2.0/25 and 172.16.2.128/25 subnetwork.

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• Refer to the exhibit. EIGRP is configured with the default configuration on all routers. Auto summariz ation is enabled on routers R2 and R3, but it is disabled on router R1.Which two EIGRP routes will be seen in the routing table of router R3？（）

  <img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/c0432bed5e96b27cf201162a3a16be20.png' /> A. 10.0.0.0/8 B. 172.16.10.0/24 C. 172.16.0.0/24 D. 10.10.10.0/24 E. 172.16.0.0/16 F. 10.10.0.0/16

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• Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable OSPFv3 on interfaces F0/0 and S0/0/0. No other related configuration exists. Assuming F0/0 and S0/0/0 reach an up/up state, which of the following is true about OSPFv3 on R1 after this configuration has been pasted into R1？（）ipv6 router ospf 1ipv6 unicast- routinginterface f0/0ipv6 address 2000 ::1/64ipv6 ospf 1 area 1interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 ospf 1 area 0

  A. OSPF works on F0/0 and S0/0/0 without further configuration B. OSPF works with the addition of one command: a no shutdown command in OSPF router configur ation modE C. OSPF works with the addition of one command: an router - id command in OSPF router configuration modE D. OSPFv3 needs at least two more configuration commands before it works on R1

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• R1 is currently advertising prefixes 1.0.0.0/8, 2.0.0.0/8, and 3.0.0.0/8 over its eBGP connection to neighbor 2.2.2.2 (R2). An engineer configures a prefix list (fred) on R1 that permits only 2.0.0.0/8 and then enables the filter with the neighbor R2 prefix- list fred out command. Upon exiting configuration mode, the engineer uses some show commands on R1, but no other commands.Which of the following is true in this case？（）

  A. The show ip bgp neighbor 2 .2.2.2 received -routes command lists the three original prefixes. B. The show ip bgp neighbor 2.2.2.2 advertised - routes command lists the three original prefixes. C. The show ip bgp neighbor 2.2.2.2 routes command lists the three original prefixes. D. T he show ip bgp neighbor 2.2.2.2 routes command lists only 2.0.0.0/8. E. The show ip bgp neighbor 2.2.2.2 advertised - routes command lists only 2.0.0.0/8.

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• 如图所示，R1，R2，R3同时运行OSPF并宣告各自的环回口，如下描述错误的是（）

  A．R2上可以使用filter-policy export命令过滤R3的环回口路由 B．R2上可以在Area1中使用filter export命令过滤R3的环回口路由 C．R2上可以再Area0中使用filter import命令过滤R3的环回口路由 D．R1上可以使用filter-policy import过滤R3的环回口路由

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• 已知ARM处理器R1＝0x12345678, R2=0xFF008899，则执行指令AND R0,R1,R2后，寄存器R0＝（）___________________。

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