南昌商学院《ccna三》课程期末考试试卷.pdf

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1、南 昌 商 学 院 CCNA三 课 程 期 末 考 试 试 卷(A卷).郑 适 用 专 业 计 科 03级 考 试 所 需 时 间 120 试 卷 总 分 100考 试 日 期 6 月 日 开 卷/闭 卷 闭 卷 成 绩 M型 一、选 择 题(共 35题 每 小 题 2 分)1、Which of the following statements are true regarding RIP v1 and v2?(Choose three.)A.Both RIP versions use hop count.B.Both RIP versions can provide authenticati

2、on of update sources.C.Both RIP versions use 16 hops as a metric for infinite distance.D.RIP v1 uses split horizon to prevent routing loops while RIP v2 does not.E.RIP v1 uses hold-down times to prevent routing loops while RIP v2 doesnotF.RIP v1 broadcasts routing table updates,while RIP v2 multicas

3、ts itsupdates.Routeri?RoutetZ怒.Routeri and Router2 shown in the topology have been configured with the noip subnet-zero command.Which of the following valid VLSM networknumbers could be used for the serial link between Routeri and Router2?(Choose two.)A.192.168.1.0/30 B、192.168.1.4/30 C、192.168.1.8/

4、30D、192.168.1.96/30 E、192.168.1.138/30 F、192.168.1.190/303、Refer to the graphic.Which of the following commands is used to configureswitch port 2 for the host on VLAN 2?A.(config)#interface fastethernet 0/2(config-if)#switchport mode access(config-if)#switchport access vlan 2B.(config)#interface vla

5、n 2(config-subif)#switchport mode access 2C.(config)#interface vlan 2(config-subif)#switchport mode trunk dotlqD.(config)#interface fastethernet 0/2(config-if)#vlan 24、Which subnet mask is represented by the/21 notation?A.255.255.224.0 B.255.255.248.0C.255.255.252.0 D.255.255.240.05、What does OSPF u

6、se to reduce the number of exchanges of routinginformation in networks where large numbers of neighbors are present?(Choose two.)A、root router B、backup root routerC、domain router D、backup domain routerE、designated router F backup designated router6.Refer to the graphic.If the network is running OSPF

7、,which subnetworks canbe assigned to the serial links between Router2 and the other routers shown inthe diagram?A.192.1.1.4/30 and 192.1.1.8/30B.192.1.1.32/30 and 192.1.1.160/30C.192.1.1.96/30 and 192.1.1.100/30D.192.1.1.160/30 and 192.1.1.164/30E.192.1.1.192/30 and 192.1.1.196/307.Which of the foll

8、owing are required when adding a network to the OSPFrouting process configuration?(Choose three.)A、network address B、loopback addressC、autonomous system numberD、subnet mask E、wildcard mask F、area ID8、What does OSPF use to calculate the cost to a destination network?A bandwidth B、bandwidth and hop co

9、untC、bandwidth and reliability D、bandwidth,load,and reliablity9、A switch is operating in VTP client mode.What is true about the operationsthat can be performed by the switch?A.VLANs that are created are not included in advertisements.B.It can only adopt VLAN changes advertised from a VTP server.C.It

10、 advertises topology changes out all trunk ports.D.It can modify existing VLANs,but can not create new ones.E.It can create and modify VLANs,but can not delete existing ones.10、What tables does EIGRP maintain for each routed protocol it supports?(Choose three.)A.adjacency table B.topology table C.ne

11、ighbor tableD.routing table E.link state table F、ARP table192.168.1.65/26 10.1.1.5/30 10.1.1.6/30 192.168.1.129/26192.168.1.66/26 192.168.1.130726Rl(coiifig)roiitei eigrp 100R1(config-r outer)#network 192.168.1.0R1(coiifig4 netwoik 10.0.0.0R2(config)#roiitei eigrp 100R2(corifig-routei)network 192.16

12、8.1.0R2(config-r outer)#netwoik 10.0.0.011、Host 192.168.1.66 in the network illustrated is unable to ping host192.168.1.130.How must EIGRP be configured to enable connectivitybetween the two hosts?(Choose two.)A.R 1(config-router)#network 192.168.1.128.B.R 1(config-router)#auto-summaryC.R 1(config-r

13、outer)#no auto-summary.D.R2(config-router)#no auto-summary.E.R2(config-router)#auto-summaryF.R2(config-router)#network 192.168.1.6412 Which of the following is used to build a switching table?A.source IP addresses B.destination IP addresses.C.destination MAC addresses D.source MAC addresses7 bytes 1

14、 byte 6 bytes 6 bytes 2 bytes 1 5 004Preamble SFD A.A.Length Data FCSAddress AddressA B C D E FRefer to the graphic.Which point in the frame must be reached before it isforwarded by a switch that is using fast-forward mode?A、A B、B C、C D、D E、E F、F14、At which layer of the hierarchical design model do

15、users connect to thenetwork?A、application B、access C、distribution D、network E、core15、Although the backup configuration file on a Catalyst 2950 switch has beenerased,it is found that VLANs are still configured in the switch.What must bedone to clear the configured VLANs?A、The vlan.dat file must be er

16、ased and the switch reloaded.B、The switch flash memory must be purged and the switch rebooted.C、The vlan.cfg file must be renamed and IOS restarted.D、Each VLAN needs to be deleted individually and the configuration saved.E、The switch needs to be restarted,because the old running configuration isstil

17、l in memory.16 Refer to the graphic.Which commands would direct outbound traffic fromR 1 to the ISP and inbound traffic from the ISP to network 200.1.1.0?A、R 1(config)#ip route 144.1.1.0 255.255.255.192 serial 0/0ISP(config)#ip route 0.0.0.0 0.0.0.0 serial 0/1B.R 1(config)#ip route 0.0.0.0 0.0.0.0 s

18、erial 0/0ISP(config)#ip route 0.0.0.0 0.0.0.0 serial 0/0C.R 1(config)#ip route 0.0.0.0 0.0.0.0 serial 0/0ISP(config)#ip route 200.1.1.0 255.255.255.0 serial 0/1D.R 1(config)#ip route 144.1.1.0 255.255.255.192 serial 0/0ISP(config)#ip route 200.1.1.0 255.255.255.0 serial 0/117 Which of the following

19、are valid STP port states?(Choose three.)A.blocking B.learning C.converging D.listening switching18、Which of the following are problems that can occur in redundantly switchednetworks?(Choose three.)A、broadcast storms B、corrupted ARP tablesC、duplicate MAC addresses D、inaccurate routing tablesE、multip

20、le copies of Ethernet frames F、MAC address table instability19、Refer to the graphic.Router A and C are completely configured and theadministrator needs to configure the routing protocol on Router B so thatcommunication occurs throughout the network.Which of the followingcommands configures routing o

21、n Router B?A、B(config)#router eigrp 1B(config)#network 192.168.10.0 0.0.0.3B(config)#network 192.168.10.4 0.0.0.3B(config)#network 192.168.10.128 0.0.0.192B、B(config)#router eigrp 1B(config)#network 192.168.10.0 0.0.0.3 area 0B(config)#network 192.168.10.4 0.0.0.3 area 0B(config)#network 192.168.10.

22、128 0.0.0.192 area 0C、B(config)#router eigrp 1B(config)#network 192.168.10.0 0.0.0.3 no-summaryB(config)#network 192.168.10.4 0.0.0.3 no-summaryB(config)#network 192.168.10.128 0.0.0.192 no-summaryD、B(config)#router eigrp 1B(config-router)#network 192.168.10.020 How much time does it take for a swit

23、ch port to go from the blocking stateto the forwarding state?A.2 seconds B.15 seconds C.20 seconds D.50 seconds21、Refer to the graphic above.The network has stabilized and SW-F hasbeen elected root bridge of the STP tree.Network traffic indicates that SW-Awould be a better selection for the root bri

24、dge.How can the networkadministrator accomplish this task?A、change the bridge priority of SW-F to a lower valueB、change the bridge priority of SW-F to a higher valueC、change the bridge priority of SW-A to a lower value22 Refer to the graphic.Assuming that VLANs are not configured on theswitch,how ma

25、ny broadcast domains are there?A.one B.two C.three D.four E.five F.six23、Consider the network shown in the graphic.Which of the following IPaddresses would be valid for a company that is leasing a single Class Cnetwork address and using VLSM for maximum efficiency?A、200.1.1.64/26 for the 50 users200

26、.1.1.128/27 for the 25 users200.1.1.176/27 for the 10 users200.1.1.192/30 for one pair of serial links200.1.1.196/30 for the second pair of serial linksB.200.1.1.0/26 for the 50 users200.1.1.80/27 for the 25 users200.1.1.96/27 for the 10 users200.1.1.128/30 for one pair of serial links200.1.1.132/30

27、 for the second pair of serial linksC.200.1.1.64/26 for the 50 users200.1.1.128/27 for the 25 users200.1.1.160/28 for the 10 users200.1.1.176/30 for one pair of serial links200.1.1.180/30 for the second pair of serial linksD.200.1.1.0/26 for the 50 users200.1.1.64/26 for the 25 users200.1.1.128/27 f

28、or the 10 users200.1.1.192/30 for one pair of serial links200.1.1.192/30 for the second pair of serial linksTaopb3oo24、Refer to the graphic.What will be the result of DR elections in the networkpresented in the graphic using OSPF?(Choose three.)A.RTC will be DR of the 10.5.0.0/24 network.B.RTD will

29、be DR of the 10.5.0.0/24 network.C.RTA will be DR of the 10.4.0.0/24 network.D.RTD will be DR of the 10.4.0.0/24 network.E.RTB will be DR of the 10.7.0.0/24 network.F.RTD will be DR of the 10.7.0.0/24 network.25、Which of the following states the 80/20 rule of end-to-end VLANs?A.80%of network resourc

30、es should be remote and 20%should be on thelocal VLAN.B.80%of VLANs should be static and the remaining 20%should bedynamic.C.80%of network traffic should be local and 20%remote.D.80%of the network sources should be centralized at the core layer andthe remaining 20%at the distribution layer.E.80%of t

31、raffic should be routed and 20%should be switched.2 6 What is an advantage of building a network such as the one shown in thegraphic?A.provides multiple paths for connectivity in the event of link failureB.provides alternate routes when spanning tree has a problemC.provides alternate network routes

32、when the Spanning Tree Protocol isconvergingD.provides concurrent paths for faster data transfers27、A network administrator has configured a switch with three VLANs:VLAN1,VLAN2,and VLAN3.Port 10 is to be assigned to VLAN3.Which of thefollowing commands are needed to assign port 10 to VLAN3?(Choose t

33、hree.)A、Switch_1(config)#switch port interface fastethernet 0/10B、Switch_1(config-if)#switch port mode accessC Switch_1(config-if)#switchport access.D、Switch_1(config-if)#switchport access vlan 3.E、Switch_1(config)#interface fastethernet 0/10.F、Switch_1#vlan database28、Refer to the graphic.Which of

34、the following addresses is the most efficientsummarization of the routes attached to Router A?A.192.168.4.0/20 B.192.168.0.0/16C.192.168.4.0/24 D.192.168.8.0/22E.192.168.8.0/29 F.192.168.8.0/3029、Which switching method increases latency and reliability more than anyother method?A.cut-through B.fast-

35、forwardC.fragment-free D.store-and-forwardVLAN 2 VLAN 3Sui tch#3hov m cectace ta ste the tn et 0/1Fas tith em etO/I i s down.Line protocol i s downHardware i s Fast E thernet,address 13 0030.949d.6f81(bia 0030.949d.6f81)H T U 1500 b ytes,B U 100000 K bit,D L Y 100 u see,relleO lllcy 255/255,txload 1

36、/255,cxload 17255Encapsulation APPA,loopback not s e tKeepalive not se tAuto-duplex,Auco Speed.lOOBaseTX/FXA R P type:ARPA,A R P T iaeout 04:00:0030、Refer to the graphic.The host on VLAN 2 cannot communicate with the hoston VLAN 3.Which of the following could be the problem based on the output ofthe

37、 show interface fastethernet 0/1 command from the switch?A.The switch port 1 is not set to access mode.B.The router interface connected to switch port 1 is shut down.C.The router is not configured for trunking.D.The switch port is not configured for full duplex or a speed of 100 Mbps.31、Consider the

38、 networks shown in the graphic.Which of the following is thecorrect configuration for Router B if OSPF is being used as the routingprotocol?A.B(config)#router ospf 0B(config-router)#network 10.10.10.64 0.0.0.31 area 0B(config-router)#network 10.10.10.0 0.0.0.3 area 0B.B(config)#router ospf 1B(config

39、-router)#network 10.10.10.64 0.0.0.63 area 0B(config-router)#network 10.10.10.0 0.0.0.3 area 0C.B(config)#router ospf 99B(config-router)#network 10.10.10.64 255.255.255.224 area 0B(config-router)#network 10.10.10.0 255.255.255.248 area 0D.B(config)#router ospf 1B(config-router)#network 10.10.10.64 0

40、.0.0.31 area 0B(config-router)#network 10.10.10.0 0.0.0.3 area 032、Which of the following must be used when configuring a router interface forVLAN trunking?(Choose three.)A、one subinterface per VLANB、one physical interface for each subinterfaceC、one IP network or subnetwork for each subinterfaceD、on

41、e trunked link per VLANE、a management domain for each subinterfaceF、a compatible trunking protocol encapsulation for each subinterface33、Which of the following commands can be used to configure the defaultmanagement VLAN on a Cisco Catalyst switch?A、(config)#interface fastethernet 0/1(config-if)#ip

42、address 10.0.0.1 255.255.255.0(config-if)#no shutdownB.(config)#interface vlan 1(config-subif)#ip address 10.0.0.3 255.255.255.0(config-subif)#no shutdownC.(config)#interface management vlan(config-subif)#ip address 10.0.0.3 255.255.255.0(config-subif)#no shutdownD.(config)#interface fastethernet 0/

43、1(config-if)#switchport mode vlan 1(config-if)#no shutdown192.168.10.64 Z2692.168.10.128 Z S O192.168.10.0 726Gateway o f la s t c eso ct i s n o t s e t1 9 2.1 6 8.1 0.0/2 4 a va ria b ly subnetted,2 su bnets,2 uajkjC 1 9 2.1 68.10.0/26 i s d lt e c tly connected,EthernetOC 192.160.10.128/30 i s d

44、ir e c tly connected,SerialOR if00:19:55:RIP:sending v l update to 255.255.255.255 v ia EthernecO(192.168.10.1)00:19:55:RIP:sending v l update to 255.255.255.255 v ia S enalO(192.168.10.129)34 Refer to the graphic.Both routers are configured using RIP v1.Both routers aresending updates about the dir

45、ectly connected routes.R1 can successfully ping theserial interface of R2.The routing table on R1 does not contain any dynamicallylearned routes from R2,and the routing table on R2 shows no dynamically learnedroutes from R1.What is the problem?A.Subnetting is not supported by RIP v1.B.One of the rou

46、ters needs a clock rate on the serial interface.C.CIDR is not supported by RIP v1.D.VLSM is not supported by RIP v1.35、What does a constant amber SYSTEM LED indicate on a Catalyst switch?A、The switch is going through POST.B、The switch is in the process of initializing ports.C、The switch has failed P

47、OST.D、The switch has passed POST and is working properly.二、实 验 题（共 3 0分）1、ospf 配 置（10 分）一 个 网 络 如 图 所 示，已 经 给 出 了 部 分 配 置，如 下 所 示。Routedhostname Routeriinterface FastEthernetO/Oip address 172.16.2.33 255.255.255.224no shutdowninterface SerialO/Oip address 172.16.1.2 255.255.255.252clockrate 56000no

48、shutdownRouter2hostname Router2interface FastEthernetO/Oip address 172.30.1.1 255.255.255.0no shutdowninterface Serial0/0ip address 172.16.1.1 255.255.255.252no shutdowninterface serialO/1ip address 10.10.1.1 255.255.255.252clockrate 56000no shutdown请 补 充 配 置，要 求 如 下 Configure OSPF routing between R

49、outeri and Router2 and Router3 with the process IDof 50.Configure Routeri with the OSPF router ID of 192.168.1.1.Configure Router2 with the OSPF router ID of 192.168.1.2.只 需 要 配 置 Route门 和 Router2即 可。2、交 换 机 配 置（20分）如 图 所 示，配 置 三 个 交 换 机 及 路 由 器，VLAN、接 口、设 备 名、域、模 式 已 经 注 明，现 有 一 个 C类 网 络 192.168.1.

50、0,交 换 机 设 备 总 数 为 三 台 交 换 机，VLAN4连 接 13台 PC,VLAN5连 接 5台 PC,VLAN6连 接 60台 PC,VLAN7连 接 25台 PC。配 置 要 求 如 下：1、请 用 最 节 省 的 方 法 为 每 个 VLAN分 配 IP地 址，并 应 用 到 交 换 机 和 路 由 器 上。2、各 交 换 机 VLAN需 要 路 由。3、仅 需 要 配 置 交 换 机 及 路 由 器 的 VLAN、接 口 及 TRUNK相 关 信 息。南 昌 商 学 隘 CCNA三 课 程 期 末 考 试 答 题 纸 十*（A 卷）一、选 择 题（共 35题，每 题 2