11.9号640-607战报
实验题还是那两道,我把答案写一下吧! 1、 conf t int e0 ip address 192.168.71.17 255.255.255.240 no shu int s0 ip address 192.168.71.33 255.255.255.240 clock rate 64000 no shu ^Z copy run start 2、我的是中间那个RIP NETWORK少配两个! show run conf t router rip network 192.168.11.0 network 192.168.8.0 ^Z copy run start what are three advantages of vlans? (choose three) a. vlans establish broadcast domains in switched networks. b. vlans utilize packet filtering to enhance network security. c. vlans provide a method of conserving ip addresses in large networks. d. vlans provide a low-latency internetworking alternative to routed networks. e. vlans allow access to network services based on department, not physical location. f. vlans can greatly simplify adding, moving, or changing hosts on the network. 选AEF 17.20.0.0/20,问可有多少主机2^(32-20)-2=4094 which commmand displays RIP routing updates as they sent and received by the router? A.show ip protocols B.show ip route rip C.debug ip rip D.debug ip updates E.debug ip transactions 选c .which of the following are functions of the frame relay local management interface ? A.informs the router of congestion occuring on the link B.creates a virtual interface that recelives frame relay traffic on the router C.transmits keepalive packets to ensure the PVC stays active D.provides the router with the active DLCI connectons E.allow the router to assign a DLCI to a router interface 选cd Which method does a Cisco Catalyst switch use to identify the VLAN membership of a frame over trunked links? A. Frame filtering with VLAN ID B. Frame tagging with VLAN ID C. Frame tagging with trunk ID D. Frame filtering with trunk ID E. Frame filtering with VTP port ID Answer: B Given the network 199.141.27.0 with a subnet mask of 255.255.255.240, identify the valid host addresses.( Choose three.) A. 199.141.27.33 B. 199.141.27.112 C. 199.141.27.119 D. 199.141.27.126 E. 199.141.27.175 F. 199.141.27.208 Answer: A. C. D Modern networks are often described as using 100Base-TX components. What is meant by the term 'Base' in this definition? A. It describes the signaling method for communication on the network. B. It refers to the type of media used in the network. C. It relates to the speed of transmission of the network signals. D. It defines the allowable length of media that can be used. E. It defines half-duplex or full-duplex operation. Answer: A Which two statements about the store and forward switching method are true? (Choose two) A. Latency remains constant regardless of frame size. B. Latency through the switch varies with frame length. C. The switch receives the complete frame before beginning to forward it. D. The switch checks the destination address as soon as it receives the header and begins forwarding the frame immediately. Answer: B,C Which devices operate at all seven layers of the OSI model? (Choose 3) A. network host B. network management station C. transceiver D. bridge E. web server F. switch Answer: A,B,E Which of the following are TCP/IP Application layer protocols?(Choose three) A. ARP B. HTTP C. SMTP D. CDP E. fTP F. ICMP Answer: B C E a network administrator is verifying the configuration of a newly installed host by establishing an ftp connection to a remote server. which layer of the protocol stack is the network administrator using for this operation? A. application B. presentation C. session D. transport E. data link F. internet Answer: A which commands will allow you to identify the local dlci number?(choose two) A. show frame-relay local-dlci B. show frame-relay pvc C. show frame-relay dlci D. show frame-relay map E. show ip route Answer: B D What are possible causes of LAN traffic congestion?(choose four) A. too many hosts In a broadcast domain B. full duplex operation C. Broadcast storms D. multicasting E. segmentation F. low bandwidth Answer: A C D F What does IGRP use to determine the best path to a destination? A. The highest metric value B. The lowest composite metric value C. The lowest hop-count and delay D. The highest bandwidth and reachability E. The lowest administrative distance Answer:B Which of the following are generally considered to be characterisitics of connectionless network services?(CHOOSE TWO) A. no-reliable B. reliable C. less bandwidth-intensive D. handshaking Answer: A C Full-duplex gives you the ability to send and receive data at the same time. Which of the following Ethernet standards can operate in full-duplex mode? (Choose two.) A. 10Base2 B. 10Base5 C. 10BaseT D. 100BaseT Answer: C, D Access-list 122 permit ip 131.107.30.0 0.0.0.255 any You apply the access-list above. Which is the effect? A.Permit all packets matching the first three octets of the source address to all destinations. B.Permit all packets matching the last of the destination address and accept all source address. C.Permit all packets from the third subnet of the network address to all destinations. D.Permit all packets matching the host bits in the source address to all destinations. E. Permit all packets to destination matching the first three octets in the destination address. Answer: A Your company has purchased some Cisco routers from an online auction. You need to make a backup copy of the IOS and store it on a TFTP server. Which of the following should be done prior to copying the IOS image to a TFTP server? (Choose three.) A. Make sure that the network server can be accessed. B. Check that the authentication for access is set. C. Ensure that the network server has adequate space for the code image. D. Verify any file naming and path requirements. E. Make sure that the server can load and run the bootstrap code. Answer: A, C, D Your boss is concerned about routing loops with the use of distance vector routing protocols such as RIP and IGRP in your network you would like to ensure him that there are mechanisms used to prevent the possibility of a routing loop. Which of the following are examples of this mechanism? (Choose two.) A. Link-state advertisement (LSA) B. Spanning Tree Protocol. C. Shortest path first tree. D. Split horizon. E. Hold-down timers. Answer: D, E You just finished installing a new operating system on a computer located in the accounting department. You would like to verify the network configuration from the new computer so you establish FTP connection to a remote TFTP server. Which layer of the OSI model did you use for this operation? A. Application B. Presentation C. Session D. Transport E. Data link F. Internet Answer: A You just purchased a brand new Cisco 2621 router. By default when the router boots which search sequence does it use to locate the IOS software? A. Flash, TFTP server, ROM B. NVRAM, TFTP server, ROM C. ROM, Flash, TFTP server D. ROM, NVRAM, TFTP server Answer: A Which show commands can you use to identify the local DLCI number? (Choose two.) A. Show frame-relay local-dlci B. Show frame-relay pvc C. Show frame-relay dlci D. Show frame-relay map E. Show ip route Answer: B, D Your ISP has provided you the following class B network range 131.107.0.0/24. Which of the following statements is true regarding this network? (Choose two.) A. There are 254 usable hosts per subnet. B. There is one usable network. C. There are 255 usable hosts per subnet. D. There are 254 usable subnets. E. There are 30 usable subnets. F. There are 62 usable hosts per subnet. Answer: A, D Frame Relay switch maps the DLCIs between Router A to Router B to create a PVC. Which statement below correctly identifies the reference point between the local router and the Frame Relay switch to which it is connected? A. Locally significant DLCI B. Globally significant DLCI C. Locally significant LMI D. Globally significant LMI Answer: A Looking at the diagram above ports 1 through 4 are assigned to VLAN1 and ports 5 through 8 are assigned to VLAN3 on each switch. The switches are interconnected over an ISL trunk link. Which of the following actions would test proper VLAN and trunk operation? (Choose three.) A. Host 2-1 can ping Host 2-2 B. Host 2-1 can ping Host 7-2 C. Host 2-1 can not ping Host 2-2 D. Host 7-1 can not ping Host 2-2 E. Host 7-1 can ping Host 7-2 Answer: A, D, E. You have just entered the command copy running-config startup-config command to save your configuration so that if the router is rebooted it will keep your configuration. Which type of router memory normally stores the startup configuration? A. RAM B. ROM C. FLASH D. NVRAM Answer: D The network 131.107.0.0 needs to be divided into subnets where each subnet has the capacity of 458 IP addresses. What would be the correct subnet mask to accomplish this division keeping the number of subnets at the maximum? Type the correct value in each box below. Answer: 255.255.254.0 Which of the following protocols is referred to as a routing protocol because it has features of both distance-vector and link-state? A. RIP B. OSPF C. EIGRP D. IGRP Answer: C You have been called in to fix a router that is having security issues. The router has an access list configured on it but the list does not seem to be working. What command can you use to see if the access list has been applied to an interface? A. Show access-list. B. Show ip route. C. Show ip interface. D. Show interface. E. Show interface list. Answer: C There are three major groups of routing protocols: distance-vector protocols, link-state protocols, and hybrid protocols. Select two valid statements regarding routing protocols? (Choose two) A. Distance vector protocols send the entire routing table to directly connected neighbors. B. Link state protocols send the entire routing table to all routers in the network. C. Distance vector protocols send updates about directory connected neighbors to all networks listed in the routing table. D. Link state protocols send updates containing the state of their own links to all other routers on the network. Answer: A, D
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