Routers R1 and R2, currently EIGRP neighbors over their Fa0/0 interfaces (respectively),both use EIGRP authentication. Tuesday at 8 p.m. the neighborship fails.Which of the following wo uld not be useful when investigating whether authenticationhad anythi

题目

Routers R1 and R2, currently EIGRP neighbors over their Fa0/0 interfaces (respectively),both use EIGRP authentication. Tuesday at 8 p.m. the neighborship fails.Which of the following wo uld not be useful when investigating whether authenticationhad anything to do with the failure？（）

A. debug eigrp packet

B. show key chain

C. show ip eigrp neighbor failure

D. show clock

相似考题

1.Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively), currently both successfully use OSPF MD5 authentication. The OSPF configuration includes the area 0 authentication command under the router ospf 1 command.Which of the following commands must have been configur ed on R1‘s Fa0/0 interface?（）A. ip ospf authentication nullB. ip ospf authentication message - digestC. ip ospf authentication -key whatever- it - isD. ip ospf message - digest - key 1 md5 whatever - it - isE. ip ospf md5 1 key whatever - it - is

2.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? ()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 .

3.Router R1 has been configured with the commands rout er eigrp 9 and network 172.16.2.0 0.0.0.255, with no other current EIGRP configuration. R1‘s (working) Fa0/0 interface has been configured with IP address 172.16.2.2/26. R1 has found three EIGRP neighbors reachable via interface Fa0/0, including the rou ter with IP address 172.16.2.20. When the engineer attempts to add the neighbor 172.16.2.20 fa0/0 command in EIGRP configuration mode.Which of the following occurs？（）A.Fa0/0 failsB.The command is rejecteDC.The existing three neighbors failD.The neighborship with 172.16.2.20 fails and then reestablishesE.None of the other answers is correct

4.Refer to the exhibit. Routers R1 and R2 have established a neighbor relationship and are exchanging routing information. The network design requires that R1 r eceive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task? （）A. R1(config)# router eigrp 1 R1(config - router)# passive - interface serial 0B. R1(config)# access - list 2 0 deny any R1(config)# router eigrp 1 R1(config - router)# distribute - list 20 out serial 0C. R2(config)# access - list 20 permit any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 in serial 0D. R1(config)# access - list 20 permit any R 1(config)# router eigrp 1 R1(config - router)# distribute - list 20 in serial 0E. R2(config)# access - list 20 deny any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 out serial 0F. R2(config)# router eigrp 1 R2(config - router)# passive - interface serial 0

参考答案和解析
参考答案：C
更多“Routers R1 and R2, currently EIGRP neighbors over their Fa0／0 interfaces (respectively),bo ”相关问题

  • 第1题：

    Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However, R1 does not show R2 as a neighbor and does not accept routing updates from R2.What could be the cause of the problem?()

    A. The no auto - summary command has not been issued under the EIGRP process on both routers.

    B. Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24.

    C. EIGRP cannot exchange routing updates with a neighbor‘s router interface that is configured with tw o IP addresses.

    D. EIGRP cannot form neighbor relationship and exchange routing updates with a secondary address.


    参考答案：D

  • 第2题：

    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.

    正确答案:B

  • 第3题：

    Router R1 has been configured with the commands rout er eigrp 9 and network 172.16.2.0 0.0.0.255, with no other current EIGRP configuration. R1's (working) Fa0/0 interface has been configured with IP address 172.16.2.2/26. R1 has found three EIGRP neighbors reachable via interface Fa0/0, including the rou ter with IP address 172.16.2.20. When the engineer attempts to add the neighbor 172.16.2.20 fa0/0 command in EIGRP configuration mode. Which of the following occurs？（）

    • A、Fa0/0 fails
    • B、The command is rejecteD
    • C、The existing three neighbors fail
    • D、The neighborship with 172.16.2.20 fails and then reestablishes
    • E、None of the other answers is correct

    正确答案:C

  • 第4题：

    Router R1 connects to Router R2 over an Ethernet LAN with both routers using their F0/0 interfaces. R1 learns a route from R2 using EIGRP f or IPv6. That route lists F0/0 as the outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant configuration on R2's F0/0 interface. Which of the following is true about R1's route?（） interface f0/0 mac - address 1111.1111.1 111 ipv6 address 2000::/64 eui - 64 ipv6 address 2001::1/64

    • A、The next hop is 2000::1311:11FF:FE11:1111
    • B、The next hop is FE80::1311:11FF:FE11:1111
    • C、The next hop is FE80::5111:11FF:FE11:1111
    • D、The next hop is 2001::1

    正确答案:B

  • 第5题：

    Routers R1 and R2, currently EIGRP neighbors over their Fa0/0 interfaces (respectively),both use EIGRP authentication. Tuesday at 8 p.m. the neighborship fails. Which of the following wo uld not be useful when investigating whether authenticationhad anything to do with the failure？（）

    • A、debug eigrp packet
    • B、show key chain
    • C、show ip eigrp neighbor failure
    • D、show clock

    正确答案:C

  • 第6题：

    Rout er R1 directly connects to subnet 10.1.1.0/24 with its Fa0/0 interface. R1 can ping four 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.

    正确答案:B,C

  • 第7题：

    单选题
    R1 has 5 working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, a nd 3 million, respectively. An engineer then adds the ip summary - address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?（）
    A

    R1 loses and then reestablishes neighborships with all neighbors.

    B

    R1 no longer advert ises 10.1.1.0/24 to neighbors connected to Fa0/0.

    C

    1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).

    D

    R1 advertises a 10.1.0.0/16 route out Fa0/0,with metric of around 2 million (med ian metric of component subnets).


    正确答案： A
    解析： 暂无解析

  • 第8题：

    多选题
    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 messages


    正确答案： A,B
    解析： 暂无解析

  • 第9题：

    多选题
    Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this change?（）
    A

    The show ip ospf neighbor command on R1 lists the revised Hello timer

    B

    The show ip ospf interfac e brief command on R1 lists the revised Hello timer

    C

    The R1 - R2 neighborship fails due to Hello timer mismatcH

    D

    The show ip ospf interface command on R1 lists the revised Hello timer


    正确答案： B,C
    解析： 暂无解析

  • 第10题：

    多选题
    A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at th e ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. R1 and R2 do not share a common subnet, relying on other routers internal to the Enterprise for IP connectivity between the two routers. Which of the following could be used to prevent potential routing loops in this design?（）
    A

    Using an iBGP mesh inside the Enterprise core

    B

    Configuring default routes in the Enterprise pointing to both R1 and R2

    C

    Redistributing BGP routes into the Enterprise IGP

    D

    Tunneling the packets for the i BGP connection between R1 and R2


    正确答案： A,C
    解析： 暂无解析

  • 第11题：

    单选题
    Router R1 connects to Router R2 over an Ethernet LAN with both routers using their F0/0 interfaces. R1 learns a route from R2 using EIGRP f or IPv6. That route lists F0/0 as the outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant configuration on R2's F0/0 interface. Which of the following is true about R1's route?（） interface f0/0 mac - address 1111.1111.1 111 ipv6 address 2000::/64 eui - 64 ipv6 address 2001::1/64
    A

    The next hop is 2000::1311:11FF:FE11:1111

    B

    The next hop is FE80::1311:11FF:FE11:1111

    C

    The next hop is FE80::5111:11FF:FE11:1111

    D

    The next hop is 2001::1


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange？（）
    A

    The show ip eigrp neighbors command on R1 lists the revised Hello timer

    B

    The show ip eigrp interfaces command on R1 lists the revised Hello timer

    C

    The R1 - R2 neighborship fails due to Hello timer mismatcH

    D

    The show ip eigrp interfaces detail command on R1 lists the revised Hello timer


    正确答案： D
    解析： 暂无解析

  • 第13题：

    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 messages

    正确答案:C,E

  • 第14题：

    An engineer has added the following configuration snippet to an implementation planning document. The configuration will be added to Router R1, whose Fa0/0 interface connects to a LAN to which Routers R2 and R3 also connect. R2 and R3 are already EIGRP neighbors with each of her. Assuming the snippet shows all commands on R1 related to EIGRP authentication, which answer lists an appropriate comment to be made during the implementation plan peer review?（） key chain fred key 3 key - string whehew interface fa0/0 ip authenticat ion key - chain eigrp 9 fred

    • A、The configuration is missing one authentication - related configuration command
    • B、The configuration is missing two authentication - related configuration commands
    • C、Authentication type 9 is not supported; type 5 should be u sed insteaD
    • D、The key numbers must begin with key 1, so change the key 3 command to key 1

    正确答案:A

  • 第15题：

    Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exis ts in a planning document intended to be used to copy/paste into Router R1 to enable EIGRP for IPv6 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 EIGRP for IPv6 on R1 after this configuration has been pasted into R1?（） ipv6 router eigrp 1 ipv6 unicast- routing interface f0/0 ipv6 address 2000::1/64 ipv6 eigrp 1 interface s0/0/0 ipv6 address 2001::/64 eui - 64 ipv6 eigrp 1

    • A、EIGRP works on F0/0 and S0/0/0 without further configuration
    • B、EIGRP works with the addition of one command: a no shutdown command in EIGRP router configuration modE
    • C、EIGRP works with the addition of one command: an eigrp router - id command in EIGRP router configurat ion modE
    • D、EIGRP for IPv6 needs at least two more configuration commands before it works on R1

    正确答案:D

  • 第16题：

    Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange？（）

    • A、The show ip eigrp neighbors command on R1 lists the revised Hello timer
    • B、The show ip eigrp interfaces command on R1 lists the revised Hello timer
    • C、The R1 - R2 neighborship fails due to Hello timer mismatcH
    • D、The show ip eigrp interfaces detail command on R1 lists the revised Hello timer

    正确答案:D

  • 第17题：

    Router R1 has working interfaces S0/0, S0/1, and S0/2, with IP address/prefix combinations of 10.10.10.1/24, 10.10.11.2/24, and 10.10.12.3/22. R1's configuration includes the command s router eigrp 9 and network 10.0.0.0. The show ip eigrp interfaces command lists S0/0 and S0/1 in the command output, but not S0/2. Which answer gives the reason for the omission？（）

    • A、R1 has EIGRP neighbors reachable via S0/0 and  S0/1, but not via S0/2, so it is not included.
    • B、S0/2 may currently be in a state other than up/up.
    • C、The network 10.0.0.0 command requires the use of mask 255.0.0.0 due to EIGRP being classful by default.
    • D、S0/2 may be configured as a passive inter face.

    正确答案:B

  • 第18题：

    R1 has 5 working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, a nd 3 million, respectively. An engineer then adds the ip summary - address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?（）

    • A、R1 loses and then reestablishes neighborships with all neighbors.
    • B、R1 no longer advert ises 10.1.1.0/24 to neighbors connected to Fa0/0.
    • C、1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).
    • D、R1 advertises a 10.1.0.0/16 route out Fa0/0,with metric of around 2 million (med ian metric of component subnets).

    正确答案:B

  • 第19题：

    单选题
    An engineer has added the following configuration snippet to an implementation planning document. The configuration will be added to Router R1, whose Fa0/0 interface connects to a LAN to which Routers R2 and R3 also connect. R2 and R3 are already EIGRP neighbors with each of her. Assuming the snippet shows all commands on R1 related to EIGRP authentication, which answer lists an appropriate comment to be made during the implementation plan peer review?（） key chain fred key 3 key - string whehew interface fa0/0 ip authenticat ion key - chain eigrp 9 fred
    A

    The configuration is missing one authentication - related configuration command

    B

    The configuration is missing two authentication - related configuration commands

    C

    Authentication type 9 is not supported; type 5 should be u sed insteaD

    D

    The key numbers must begin with key 1, so change the key 3 command to key 1


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at the ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. Assuming as many default s ettings as possible are used on all four routers, which of the following is true about the next - hop IP address for routes R1 learns over its iBGP connection to R2?（）
    A

    The next hop is I2's BGP RID

    B

    The next hop is I2's IP address used on the R2 - I2 neigh bor relationship

    C

    The next hop is R2's BGP RID

    D

    The next hop is R2's IP address used on the R1 - R2 neighbor relationship


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Router R1 has working interfaces S0/0, S0/1, and S0/2, with IP address/prefix combinations of 10.10.10.1/24, 10.10.11.2/24, and 10.10.12.3/22. R1's configuration includes the command s router eigrp 9 and network 10.0.0.0. The show ip eigrp interfaces command lists S0/0 and S0/1 in the command output, but not S0/2. Which answer gives the reason for the omission？（）
    A

    R1 has EIGRP neighbors reachable via S0/0 and  S0/1, but not via S0/2, so it is not included.

    B

    S0/2 may currently be in a state other than up/up.

    C

    The network 10.0.0.0 command requires the use of mask 255.0.0.0 due to EIGRP being classful by default.

    D

    S0/2 may be configured as a passive inter face.


    正确答案： B
    解析： 暂无解析

  • 第22题：

    多选题
    Rout er R1 directly connects to subnet 10.1.1.0/24 with its Fa0/0 interface. R1 can ping four 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.


    正确答案： C,A
    解析： 暂无解析

  • 第23题：

    多选题
    Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively), currently both successfully use OSPF MD5 authentication. The OSPF configuration includes the area 0 authentication command under the router ospf 1 command. Which of the following commands must have been configur ed on R1's Fa0/0 interface?（）
    A

    ip ospf authentication null

    B

    ip ospf authentication message - digest

    C

    ip ospf authentication -key whatever- it - is

    D

    ip ospf message - digest - key 1 md5 whatever - it - is

    E

    ip ospf md5 1 key whatever - it - is


    正确答案： B,E
    解析： 暂无解析

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