新能源概论2enPPT课件
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Below you will find the assessment items as presented on the exam as well as the scoring rules associated with the item.Cisco Networking Academy content is copyrighted and the unauthorized posting, distribution or sharing of this exam content is prohibited.Close WindowAssessment SystemExam Viewer - ERouting Practice Final Exam - CCNA Exploration: 路由协议和概念 (Version 4.0)1What are two functions of a router? (Choose two.) gf e d c It connects multiple IP networks. gf e d c It controls the flow of data via the use of Layer 2 addresses.g fe d c It determines the best path to send packets. g fe d c It manages the VLAN database. g fe d c It increases the size of the broadcast domain.ObservableDescriptionMax Value1correctness of responseOption 1 and Option 3 are correct.1 point for each correct option.0 points if more options are selected than required.22When a router boots, what is the default order to locate the Cisco IOS if there is no boot system command? nm l k j ROM, TFTP server, flash n ml k j flash, TFTP server, ROM n ml k j flash, NVRAM, TFTP server nm l k j NVRAM, TFTP server, flashObservableDescriptionMax Value1correctness of response2 points for Option 20 points for any other option23Which router component is used to store the routing table? nm l k j Flash n m l k j NVRAM n ml k j ROM n ml k j SDRAMObservableDescriptionMax Value1correctness of response2 points for Option 40 points for any other option24Refer to the exhibit. How many routes are child routes? nm l k j 1 n m l k j 3 n ml k j 4 n ml k j 6ObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option25Refer to the exhibit. Which statement is true concerning the routing configuration?nm l k j Using dynamic routing instead of static routing would have required fewer configuration steps. n ml k j The 10.1.1.0/24 and 10.1.2.0/24 routes have adjacent boundaries and should be summarized. n ml k j Packets routed to the R2 Fast Ethernet interface require two routing table lookups. nm l k j The static route will not work correctly.ObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option26Refer to the exhibit. The network administrator issues the command no ip classless on Router1. What forward on a packet that is received by Router1 and is destined for host 192.168.0.26? nm l k j The packet will be dropped. n ml k j The packet will be forwarded to the gateway of last resort. n ml k j The packet will match the 192.168.0.0 network and be forwarded out Serial 0/0. n ml k j The packet will most closely match the 192.168.0.8 subnet and be forwarded out Serial 0/1.ObservableDescriptionMax Value1correctness of response2 points for Option 10 points for any other option27Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance valu properly configured and the destination network is advertised by both protocols.Which path will be used to transmit the data packets between PC1 and PC2? nm l k j The packets will travel via R2-R1. n ml k j The packets will travel via R2-R3. nm l k j The traffic will be load-balanced between two paths — via R2-R1 and via R2-R3. n ml k j The packets will travel via R2-R3, and the other path via R2-R1 will be retained as the backup path.ObservableDescriptionMax Value1correctness of response2 points for Option 10 points for any other option28Refer to the exhibit. Router R1 is configured as shown in the exhibit. PC1 on 172.16.1.0/24 network can reach R1. The rest of the routers are configured with the correct IP addresses on the interfaces. Routers R2 and R3 d dynamic routing enabled. How far will PC1 be able to successfully ping? nml k j router R1 Fa0/0 interface n ml k j router R1 S0/0/0 interface n ml k j router R2 S0/0/0 interface n ml k j router R2 Fa0/0 and S0/0/1 interfaces n ml k j router R3 Fa0/0 and S0/0/0 interfacesObservableDescriptionMax Value1correctness of response2 points for Option 20 points for any other option29Refer to the exhibit. All routers are properly configured to use the EIGRP routing protocol with default settings, converged. Which statement correctly describes the path that the traffic will use from the 10.1.1.0/24 network to network?nm l k j It will use the A-D path only. n ml k j It will use the path A-D, and the paths A-C-D and A-B-D will be retained as the backup paths. It will use all the paths equally in a round-robin fashion.ml j The traffic will be load-balanced between A-B-D and A-C-D.ObservableDescriptionMax Value1correctness of response2 points for Option 40 points for any other option210Which two statements are true regarding link-state routing protocols? (Choose two.)f e c They are aware of the complete network topology. fe c They offer rapid convergence times in large networks. fe c They do not include subnet masks in their routing updates. fe c They rely on decreasing hop counts to determine the best path. fe c They do not work well in networks that require special hierarchical designs. fe c They pass their entire routing tables to their directly connected neighbors only.ObservableDescriptionMax Value1correctness of responseOption 1 and Option 2 are correct.1 point for each correct option.0 points if more options are selected than required.211Refer to the exhibit. R1 knows two routes, Path A and Path B, to the Ethernet network attached to R3. R1 learn 10.2.0.0/16 from a static route and Path B to network 10.2.0.0/16 from EIGRP. Which route will R1 install in its nm l k j Both routes are installed and load balancing occurs across both paths. nm l k j The route via Path B is installed because the EIGRP route has the best metric to network 10.2.0.0/16. n ml k j The route via Path A is installed because the static route has the best metric to network 10.2.0.0/16. n ml k j The route via Path B is installed because the EIGRP route has the lowest administrative distance to networ n ml k j The route via Path A is installed because the static route has the lowest administrative distance to networkObservableDescriptionMax Value1correctness of response2 points for Option 50 points for any other option212What two routing protocols use a hierarchal network topology? (Choose two.)gf e d c IS-ISg f e d c EIGRP g f e d c OSPF g fe d c RIPv1 g fe d c RIPv2ObservableDescriptionMax Value1correctness of responseOption 1 and Option 3 are correct. 1 point for each correct option.0 points if more options are selected than required.213Refer to the exhibit. Based on the output from the show running-config and debug ip rip commands, what a are added to the routing table of R1? (Choose two.)gf e d c R 192.168.1.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/1g fe d c R 192.168.100.0/24 [120/1] via 172.16.1.1, 00:00:24, Serial0/0/0 g fe d c S 192.168.1.0/24 [1/0] via FastEthernet0/0 gf e d c R 192.168.9.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/0g fe d c R 192.168.2.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0ObservableDescriptionMax Value1correctness of responseOption 2 and Option 3 are correct.1 point for each correct option.0 points if more options are selected than required.214Refer to the exhibit. The network has three connected routers: R1, R2 and R3. The routes of all three routers a be verified from the output?m l j ml j The IP address of the S0/0/0 interface of R1 is 10.1.1.2. ml j The IP address of the S0/0/1 interface of R2 is 10.3.3.2. m l j R2 is connected to the S0/0/1 interface of R3.ObservableDescriptionMax Value1correctness of response2 points for Option 40 points for any other option215Refer to the exhibit. All router interfaces are configured with an IP address and are operational. If no routing pro configured, what information will be included in the show ip route command output for router A? nm l k j All of the 192.168.x.0 networks will be in the routing table. n ml k j Routes to networks 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24 will be in the routing table. n ml k j The routing table will be empty because routes and dynamic routes have not been configured. n ml k j A default route is automatically installed in the routing table to allow connectivity between the networks.ObservableDescriptionMax Value1correctness of response2 points for Option 20 points for any other option216Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once the administra router, which password should the administrator enter at the R1> prompt to access the privileged EXEC mode?nm l k j Cisco001 n ml k j Cisco123 n ml k j Cisco789 n ml k j Cisco901ObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option217Which of the following could describe the devices labeled "?" in the graphic? (Choose three.) gf ed c DCE g fe d c CSU/DSU gf e d c LAN switchg fe d c modem g fe d c hubObservableDescriptionMax Value1correctness of responseOption 1, Option 2, and Option 4 are correct.1 point for each correct option.0 points if more options are selected than required.318Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28? nm l k j Router1 n m l k j Router2 n ml k j Router3 n ml k j Router4ObservableDescriptionMax Value1correctness of response2 points for Option 40 points for any other option219Refer to the exhibit. The show cdp neighbors command was run at R1. Which two facts about the newly dete determined from the output? (Choose two.) gf e d c ABCD is a router that is connected to R1.f e c The device is connected at the Serial0/0/1 interface of R1.f e c R1 is connected at the S0/0/1 interface of device ABCD.f e c ABCD does not support switching capability.Observable Description Max Value1correctness of response Option 1 and Option 3 are correct.1 point for each correct option.0 points if more options are selected than required.220 A static route has been configured on a router. However, the destination network no longer exists. What shouldremove the static route from the routing table?m l j Change the routing metric for that route.m l j Nothing. The static route will go away on its own.m l j Change the administrative distance for that route.m l j Remove the route using the no ip route command.Observable Description Max Value1correctness of response 2 points for Option 40 points for any other option221Refer to the exhibit. A ping between host A and host B is successful, but pings from host A to operational hosts is the reason for this problem?n m l k j The FastEthernet interface of R1 is disabled.n m l k j One of the default routes is configured incorrectly.n m l k j A routing protocol is not configured on both routers.n m l k j The default gateway has not been configured on host A.Observable Description Max Value1correctness of response 2 points for Option 20 points for any other option222Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The routes of all three routers a are operational and pings are not blocked on this network.Which ping will fail?n m l k j from R1 to 172.16.1.1n m l k j from R1 to 192.168.3.1n m l k j from R2 to 192.168.1.1n m l k j from R2 to 192.168.3.1Observable Description Max Value1correctness of response 2 points for Option 20 points for any other option223Refer to the exhibit. What action will R2 take for a packet that is destined for 192.168.2.0?n m l k j It will drop the packet.n m l k j It will forward the packet via the S0/0/0 interface.n m l k j It will forward the packet via the Fa0/0 interface.n m l k j It will forward the packet to R1.Observable Description Max Value1correctness of response2 points for Option 40 points for any other option224Refer to the exhibit. The users on the local network 172.16.1.0/24 complain that they are unable to connect to t should be taken to remedy the problem?nm l k j A new static route must be configured on R1 with the R3 serial interface as the next hop. n ml k j A new default route must be configured on R1 with the R3 serial interface as the next hop. nm l k j The default route on R2 should be configured with the R3 serial interface as the next hop. n ml k j The default route on R2 must be replaced with a new static route and the next hop should be the R1 FastEObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option225Refer to the exhibit. What summary address can Router2 advertise to Router1 to reach the three networks on R without advertising any public address space or overlapping the networks on Router1? nm l k j 172.16.0.0/8 nm l k j 172.16.0.0/10 n ml k j 172.16.0.0/13 n ml k j 172.16.0.0/20ObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option226Refer to the exhibit. Host A is unable to access the Internet, and troubleshooting has revealed that this is due t What is incorrectly configured in this network? nm l k j the IP address of the Fa0/0 interface of R1 n ml k j the subnet mask of the S0/0/0 interface of R1 n ml k j the IP address of the S0/0/0 interface of R1 nm l k j the subnet mask of the S0/0/0 interface of R2ObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option227Refer to the exhibit. A new PC was deployed in the Sales network. It was given the host address of 192.168.10gateway of 192.168.10.17. The PC is not communicating with the network properly. What is the cause? nm l k j The default gateway is incorrect. n ml k j The address is in the wrong subnet. nm l k j The host address and default gateway are swapped. n ml k j 192.168.10.31 is the broadcast address for this subnet.ObservableDescriptionMax Value1correctness of response2 points for Option 40 points for any other option228Refer to the exhibit. The network administrator is planning IP addressing of a new network. What part of this ad be changed to allow communication between host A and the server?n m l k j the IP address of the servern m l k j the default gateway of host An m l k j the IP address of host An m l k j the default gateway of the serverObservable Description Max Value1correctness of response 2 points for Option 10 points for any other option229Which network design feature requires the deployment of a classless routing protocol?n m l k j private IP addressingn m l k j advertising default routesn m l k j variable length subnet masksn m l k j summarization on major network boundariesObservable Description Max Value1correctness of response 2 points for Option 30 points for any other option230 A network administrator needs to assign the very last usable IP address in the 172.24.64.0/18 network range toserves this LAN. Which IP address should the administrator configure on the interface?n m l k j172.16.128.154/18n m l k j172.16.255.254/18n m l k j172.24.64.254/18n m l k j172.24.127.254/18Observable Description Max Value1correctness of response 2 points for Option 40 points for any other option231Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29 are unable t What can be the cause of this problem?nm l k j Because RIPv1 is a classless protocol, it does not support this access. n ml k j RIPv1 does not support discontiguous networks. nm l k j RIPv1 does not support load balancing. n ml k j RIPv1 does not support automatic summarization.ObservableDescriptionMax Value1correctness of response2 points for Option 20 points for any other option232Refer to the exhibit. What information can be determined from the highlighted output? nm l k j R1 is originating the route 172.30.200.32/28. n ml k j Automatic summarization is disabled. nm l k j The 172.30.200.16/28 network is one hop away from R1. n ml k j A classful routing protocol is being used.ObservableDescriptionMax Value1correctness of response2 points for Option 20 points for any other option233What does RIP use to reduce convergence time in a larger network?ml j It reduces the update timer to 15 seconds if there are more than 10 routes. ml j It uses triggered updates to announce network changes if they happen in between the periodic updates. ml j It uses random pings to detect if a pathway is down and therefore is preemptive on finding networks that arObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option234A network administrator has enabled RIP on routersB andC in the network diagram. Which of the following co updates from being sent to Router A? nm l k j A(config)# router rip A(config-router)# passive-interface S0/0nm l k j B(config)# router rip B(config-router)# network 192.168.25.48 B(config-router)# network 192.168.25.64 nm l k j A(config)# router rip A(config-router)# no network 192.168.25.32nm l k j B(config)# router rip B(config-router)# passive-interface S0/0nm l k j A(config)# no router ripObservableDescriptionMax Value1correctness of response2 points for Option 40 points for any other option235Refer to the exhibit. Both routers are using the RIP protocol. Devices on the 192.168.2.0 network can ping the cannot ping devices on the 192.168.1.0 network. What is a possible cause of this problem?n m l k j The routers are configured with different versions of RIP.n m l k j R2 is not forwarding the routing updates.n m l k j The R1 configuration should include the no auto-summary command.n m l k j The maximum path number has been exceeded.Observable Description Max Value1correctness of response 2 points for Option 10 points for any other option236Which two statements are correct about the split horizon with poison reverse method of routing loop preventiong f e d c It is enabled by default on all Cisco IOS implementations.g f e d c It assigns a value that represents an infinite metric to the poisoned route.g f e d c It sends back the poisoned route update to the same interface from where it was received.g f e d c It instructs routers to hold all changes that might affect routes, for a specified period of time.g f e d c It limits the number of hops a packet can traverse through the network before it is discarded.Observable Description Max Value1correctness of response Option 2 and Option 3 are correct.1 point for each correct option.0 points if more options are selected than required.237Refer to exhibit. Given the topology shown in the exhibit, what three commands are needed to configure EIGR (Choose three.)g f e d c Paris(config)# router eigrp 100g f e d c Paris(config)# router eigrpg f e d c Paris(config-router)# network 192.168.6.0g f e d c Paris(config-router)# network 192.168.7.0g f e d c Paris(config-router)# network 192.168.8.0g f e d c Paris(config-router)# network 192.168.9.0Observable Description Max Value1correctness of response Option 1, Option 4, and Option 5 are correct.1 point for each correct option.0 points if more options are selected than required.338 A router has EIGRP configured as the only routing protocol. In what way might EIGRP respond if there is no fea destination network and the successor route fails?n m l k j It broadcasts hello packets to all routers in the network to re-establish neighbor adjacencies.n m l k j It sends queries to adjacent neighbors until a new successor route is found.n m l k j It immediately sends its entire routing table to its neighbors.n m l k j It will set the metric for the failed route to infinity.Observable Description Max Value1correctness of response 2 points for Option 20 points for any other option239Refer to the exhibit. Hosts on the BOS Fa0/0 LAN are able to ping the Fa0/1 interface on the JAX router and a and ORL routers. Why would hosts from the 10.0.0.0/24 network not be able to ping hosts on the Fa0/0 LAN of n m l k j The JAX router has the wrong process ID.n m l k j The JAX router needs the network 10.0.0.0 0.0.0.255 area 0 command.n m l k j The JAX router needs the network 192.168.3.0 0.0.0.255 area 0 command.n m l k j The BOS router needs the network 192.168.3.0 0.0.0.255 area 0 command.Observable Description Max Value1correctness of response 2 points for Option 30 points for any other option240Which three statements describe the operation of routing with EIGRP? (Choose three.)g f e d c As new neighbors are discovered, entries are placed in a neighbor table.g f e d c If the feasible successor has a higher advertised cost than the current successor route, then it becomes theg f e d c If hello packets are not received within the hold time, DUAL must recalculate the topology.g f e d c The reported distance is the distance to a destination as advertised by a neighbor.g f e d c EIGRP maintains full knowledge of the network topology in the topology table and exchanges full routing inneighboring routers in every update.g f e d c EIGRP builds one routing table that contains routes for all configured routed protocols.Observable Description Max Value1correctness of response Option 1, Option 3, and Option 4 are correct.1 point for each correct option.0 points if more options are selected than required.341Refer to the exhibit. What happens to a packet that has 172.16.0.0/16 as the best match in the routing table tha nml k j The packet is discarded. nm l k j The packet is flooded out all interfaces. n ml k j The packet is forwarded via Serial0/0/0. n ml k j The packet is forwarded via FastEthernet0/0.ObservableDescriptionMax Value1correctness of response2 points for Option 10 points for any other option242 A network is configured with the IP, IPX, and AppleTalk protocols. Which routing protocol is recommended fornm l k j RIPv1 n m l k j RIPv2 nm l k j EIGRP n ml k j OSPFObservableDescriptionMax Value1correctness of response2 points for Option 30 points for any other option243Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.) gf e d c Automatic summarization is disabled.g fe d c The EIGRP routing protocol is being used. g fe d c There is one feasible successor in the routing table. gf e d c The serial interface S0/0/0 is administratively down.g fe d c The router is originating the route to 172.16.1.0/24 via the S0/0/0 interface.Observable DescriptionMax Value1correctness of responseOption 1 and Option 2 are correct. 1 point for each correct option.0 points if more options are selected than required.244Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this? nm l k j The two routers are connected on a multiaccess network. n ml k j The hello and dead intervals are different on the two routers. n ml k j They have different OSPF router IDs. nm l k j They have different process IDs.ObservableDescriptionMax Value1correctness of response2 points for Option 20 points for any other option245What command would the network administrator apply to a router that is running OSPF to advertise the entireincluded in 172.16.0.0/19 in area 0?nm l k j R1(config-router)# network 172.16.0.0 0.0.0.255 area 0 nm l k j R1(config-router)# network 172.16.0.0 0.0.3.255 area 0 n ml k j R1(config-router)# network 172.16.0.0 0.0.15.255 area 0 n ml k j R1(config-router)# network 172.16.0.0 0.0.31.255 area 0ObservableDescriptionMax Value1correctness of response2 points for Option 40 points for any other option246What should be considered when troubleshooting a problem with the establishment of neighbor relationships b(Choose two.)gf e d c OSPF interval timers mismatchg fe d c administrative distance mismatch g fe d c interface network type mismatch g fe d c no loopback interface configured gf e d c gateway of last resort not redistributedObservableDescriptionMax Value1correctness of response1 point for each correct option. 0 points if more options are selected than required. 247Which two components are used to determine the router ID in the configuration of the OSPF routing process?gf e d c the IP address of the first FastEthernet interfaceg fe d c the highest IP address of any logical interface gf e d c the highest IP address of any physical interfaceg fe d c the default gateway IP address gf e d cthe priority value of 1 on any physical interfaceObservable DescriptionMax Value 1correctness of responseOption 2 and Option 3 are correct.1 point for each correct option.0 points if more options are selected than required. 248What is the function of the OSPF LSR packet?nm l k j It is used to confirm the receipt of LSUs. n ml k j It is used to establish and maintain adjacency with other OSPF routers. n ml k j It is used by the receiving routers to request more information about any entry in the DBD. n m l k j It is used to check the database synchronization between routers.Observable DescriptionMax Value 1correctness of response2 points for Option 30 points for any other option 249Refer to the exhibit. All interfaces are configured with the correct IP addresses and subnet masks. OSPF has brouting protocol. During troubleshooting, it is determined that hosts on network B can ping the Lo0 interface on reach hosts on network A. What is the cause of the problem?nm l k j Routers R1 and R2 have incorrect router IDs configured. nm l k j Router R1 is unable to form a neighbor relationship with router R2. n ml k j Routers R1 and R2 have been configured in different OSPF areas. n ml k j The configuration of router R1 fails to include network A in the OSPF routing process.Observable Description Max Value 1correctness of response2 points for Option 40 points for any other option 250Refer to the exhibit. The interface addresses and OSPF priorities are configured as shown. Because of the boo router A is currently the DR and router B is the BDR. If router A fails and is replaced the next day by a new rou protocol action or actions will happen when router D is connected to the network?nm l k j Router B will remain the DR, and router C will remain the BDR. n ml k j Router D will be elected DR, and router B will remain the BDR. nm l k j Router C will become the DR, and router B will become the BDR. n m l k j Router B will remain the BDR, and OSPF will function on the segment via the use of only the BDR.Observable DescriptionMax Value 1correctness of response2 points for Option 10 points for any other option 2Reset ViewShowing 1 of 1Prev Page:1NextClose WindowAll contents copyright ©2001-2010 Cisco Systems, Inc. All rights reserved. Privacy Statement and Trademarks.。