An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?()A. Interfaces will automatically detect and build adjacencies with neighbor routers

题目
An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?()

A. Interfaces will automatically detect and build adjacencies with neighbor routers

B. DR and BDR elections will not occur

C. DR and BDR elections will occur

D. The neighbor command is required to build adjacencies

E. All routers must be configured in a fully meshed topology with all other routers

相似考题

1.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.

2.Which of the following can either directly or indirec tly identify all the interfaces for which both 1) OSPF has been enabled and 2) OSPF is not passive?()A. show ip ospf databaseB. show ip ospf interface briefC. show ip protocolsD. show ip route ospfE. show ip ospf neighbors

3.Refer to the exhibit. A network administrator has configured DHCP services on the router asshown. DHCP clients connected to the FastEthernet0/0 interface are working properly. DHCP clients connected to the FastEthernet0/1 interface are not receiving addresses.Which two statements contain recommendations that will solve the problem?（）A.The network shown in the output under the ip dhcp pool Central command should be changed to network 10.10.0.0 with a mask of 255.255.255.0B.A second DHCP pool for network 10 .10.0.0/24 should be configuredC.An ip dhcp excluded - address global configuration command for network 10.10.0.0/24 should be issuedD.The ip helper -address 10.0.0.1 command should be issued so that the address can be added to the Fast Ethernet0/0 c onfigurationE.The ip helper -address 10.0.0.1 command should be issued so that the address can be added to the Fast Ethernet0/1 configuration

4.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 broadcastB. ip ospf network non - broadcastC. ip ospf network point - to - multipointD. ip ospf network point - to - multipoint non - broadcast

参考答案和解析
参考答案：C, D
更多“An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?() ”相关问题

  • 第1题：

    Refer to the exhibit. Two routers are connected by Frame Relay and are running OSPF bet ween them. Each router has been configured with the appropriate network statements under router ospf 1, but the routers are not forming an adjacency. Which of the following three commands could be configured on each router to correct this problem?（）

    A. RouterC(config - if)#ip ospf network broadcast RouterD(config - if)#ip ospf network broadcast

    B. RouterC(config - if)#ip ospf network point - to - point RouterD(config - if)#ip ospf network point - to - point

    C. RouterC(config - router)#neighbor 10.100. 100.4 RouterD(config - router)#neighbor 10.100.100.3

    D. RouterC(config - router)#neighbor 10.255.255.254 RouterD(config - router)#neighbor 10.255.255.253


    参考答案：A, B, D

  • 第2题：

    Route redistribution (RR) has become an integral part of IP network design as the res ult of a growing need for disseminating certain routes across routing protocol boundaries. By default, which description is true when redistributing routes from other routing protocols into OSPF?（）

    A. Summarized routes are unacceptable

    B. They will appe ar in the OSPF routing table as type E2 routes

    C. Only routes with lower administrative distances will be imported

    D. All imported routes are to be automatically summarized if possible


    参考答案：B

  • 第3题：

    Users on the 172.17.22.0 network cannot reach the server located on the 172.31.5.0 network.The network administrator connected to console port,issued the show ip route command,and was able to ping the server.Based on the output of the show ip route command topology shown in the graphic,what is the cause of the failure?（）

    A.IP routing is not enabled

    B.A static route is configured incorrectly

    C.The network has not fully converged

    D.The FastEthernet interface on Coffee is disabled

    E.The routing table on Coffee has not updated

    F.The neighbor relationship table is not correctly updated


    参考答案：D

  • 第4题：

    When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）

    • A、OSPF hello interval is 5 seconds
    • B、OSPF hello interval is 1 second
    • C、OSPF dead interval is 1 second
    • D、OSPF dead interval is 5 seconds
    • E、OSPF dead interval is 20 seconds
    • F、OSPF hello interval is 0.2 second

    正确答案:C,F

  • 第5题：

    You have a multi-area OSPF network and you’re concerned because one of the sites is havingconnectivity problem to resources in a different area. Which IOS privileged mode command wouldyou enter to confirm that your network：  （A） has a path to its ABR，  （B） has a path to its ASBR， and  （C）the SPF calculation is functional？（）

    • A、show ip protocols
    • B、show running-config
    • C、show ip ospf neighbor
    • D、show ip ospf border-routers

    正确答案:D

  • 第6题：

    A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG. For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）

    • A、When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.
    • B、  When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.
    • C、When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.
    • D、When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.
    • E、None of the other answers is correct.

    正确答案:E

  • 第7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

    正确答案:C

  • 第8题：

    Route redistribution (RR) has become an integral part of IP network design as the res ult of a growing need for disseminating certain routes across routing protocol boundaries. By default, which description is true when redistributing routes from other routing protocols into OSPF?（）

    • A、Summarized routes are unacceptable
    • B、They will appe ar in the OSPF routing table as type E2 routes
    • C、Only routes with lower administrative distances will be imported
    • D、All imported routes are to be automatically summarized if possible

    正确答案:B

  • 第9题：

    Which of the following can either directly or indirec tly identify all the interfaces for which both 1) OSPF has been enabled and 2) OSPF is not passive?（）

    • A、show ip ospf database
    • B、show ip ospf interface brief
    • C、show ip protocols
    • D、show ip route ospf
    • E、show ip ospf neighbors

    正确答案:B,C

  • 第10题：

    单选题
    Which statement is true about the command ipv6 ospf 1 area 0?（）
    A

    It must be issued before the network command to enable the OSPF pr ocess for IPv6.

    B

    It must be issued after the network command to enable the OSPF process for IPv6.

    C

    It must be issued in router global configuration mode to enable the OSPF process for IPv6.

    D

    It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    Which statement about the ip classless router command is true?（）
    A

    The ip classless command is enabled by default in recent versions of IOS.

    B

    The ip classless command should only be enabled when static routing is being used instead of a routing protocol.

    C

    The ip classless command should be enabled by the network administrator whenever RIPv1 or IGRP is being used.

    D

    The ip classless command should be enabled by the network administrator whenever OSPF, RIPv2, or EIGRP is being used.


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Which command displays the number of times that the OSPF Shortest Path First (SPF) algorithm has been executed?（）
    A

    show ip protocol

    B

    show ip ospf

    C

    sho w ip ospf database

    D

    show ip ospf interface


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Refer to the exhibit. Looking at the topology diagram and the partial router configurations shown, which statement is true? ()

    A.The NProuter has two OSPF neighbors in the "Full" adjacency state

    B.The NProuter serial0/0 interface has the OSPF dead timer set to 10 seconds

    C.The NProuter serial0/0 interface has been configured with an OSPF network type of "pointtopoint"

    D.The 10.1.1.1 and 10.1.1.2 routers are not using the default OSPF dead and hello timers setting

    E.The "Mismatched" error is caus ed by the expiration of the OSPF timers


    参考答案：E

  • 第14题：

    Refer to the exhibit. What two statements are true?()

    A. This is the designated router (DR) on the FastEthernet 0/0 link.

    B. The output was generated by the show ip interface c ommand.

    C. The router was configured with the commands:r outer ospf 1 network 172.16.6.0 0.0.0.255 area 1

    D. The IP address of the backup designated router (BDR) is FE80::205:5FFF:FED3:5808.

    E. Interface FastEthernet 0/0 was configured with the ipv6 o spf 1 area 1 command.

    F. OSPF version 2 has been enabled to support IPv6.


    参考答案：D, E

  • 第15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16题：

    A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）

    • A、For the two vlans to communicate，a network statement for the trunk interface needs to be added to the  OSPF configuration.
    • B、For the two vlans to communicate， a network statement for each subinterface needs to be  added  to the OSPF configuration.
    • C、Direct inter-vlan communication does not require OSPF
    • D、OSPF cannot be used if router-on-a-stick is configured on the router

    正确答案:C

  • 第17题：

    Which statement about the ip classless router command is true?（）

    • A、The ip classless command is enabled by default in recent versions of IOS.
    • B、The ip classless command should only be enabled when static routing is being used instead of a routing protocol.
    • C、The ip classless command should be enabled by the network administrator whenever RIPv1 or IGRP is being used.
    • D、The ip classless command should be enabled by the network administrator whenever OSPF, RIPv2, or EIGRP is being used.

    正确答案:A

  • 第18题：

    Which statement is true about the command ipv6 ospf 1 area 0?（）

    • A、It must be issued before the network command to enable the OSPF pr ocess for IPv6.
    • B、It must be issued after the network command to enable the OSPF process for IPv6.
    • C、It must be issued in router global configuration mode to enable the OSPF process for IPv6.
    • D、It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.

    正确答案:D

  • 第19题：

    An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）

    • A、Interfaces will automatically detect and build adjacencies with neighbor routers
    • B、DR and BDR elections will not occur
    • C、DR and BDR elections will occur
    • D、The neighbor command is required to build adjacencies
    • E、All routers must be configured in a fully meshed topology with all other routers

    正确答案:C,D

  • 第20题：

    Which statement is true when ICMP echo and echo-reply are disabled on edge devices？（）

    • A、Pings are allowed only to specific devices.
    • B、CDP information is not exchanged.
    • C、Port scans can no longer be run.
    • D、Some network diagnostic data is lost.
    • E、Wireless devices need to be physically connected to the edge device.
    • F、OSPF routing needs the command ip ospf network non-broadcast enabled.

    正确答案:D

  • 第21题：

    多选题
    Which of the following can either directly or indirec tly identify all the interfaces for which both 1) OSPF has been enabled and 2) OSPF is not passive?（）
    A

    show ip ospf database

    B

    show ip ospf interface brief

    C

    show ip protocols

    D

    show ip route ospf

    E

    show ip ospf neighbors


    正确答案： C,A
    解析： 暂无解析

  • 第22题：

    单选题
    You have amulti-area OSPF network and you’re concerned because one of the sites is having connectivity problem to resources in a different area. Which IOS privileged mode command would you enter to confirm that your network ：A.has a path to itsABR，B.has a path to itsASBR，and C.the SPF calculation is functional（）
    A

    show ip protocols

    B

    show running-config

    C

    show ip ospfneighbor

    D

    show ip ospfborder-routers


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）
    A

    For the two vlans to communicate，a network statement for the trunk interface needs to be added to the  OSPF configuration.

    B

    For the two vlans to communicate， a network statement for each subinterface needs to be  added  to the OSPF configuration.

    C

    Direct inter-vlan communication does not require OSPF

    D

    OSPF cannot be used if router-on-a-stick is configured on the router


    正确答案： B
    解析： 暂无解析

相关内容