20xx最新10月ccna题库word版400~500题(编辑修改稿)

20xx最新10月ccna题库word版400~500题(编辑修改稿)内容摘要：

TION 430 Refer to the how the routes in the table are being affected by the status change on interface Ether0. A. The router is poisoning the routes and multicasting the new path costs via interface Ether1. B. The router is receiving updates about unreachable works from router that are connected to interface Ether1. C. The router is poisoning the routes and broadcasting the new path costs via interface Ether1. D. The router is requesting updates for these works from routers that are connected to interface Etherne1. QUESTION 431 In which integration method is an IPV6 packet encapsulated within an IPV4 protocol? A. proxy. B. dualstack C. tunneling D. dot1q QUESTION 432 Which two mands can be used to verify a trunk link configurationt status on a given cisco switch? (choose two) A. show interfaces interface B. show interfaces interface trunk C. show interfaces interface switchport D. show ip interface brief E. show interfaces vlan QUESTION 433 Assuming the default switch configuration,which approach should you use to configure the extended vlan range(1006 through 4094) on a cisco catalyst 3750 series switch? A. Configure the switch to be in VTP client mode. B. Configure the switch to be in VTP domaint mode. C. Configure the switch to be in VTP transparent mode. D. Configure the switch to be in VTPv2. QUESTION 434 CCNA 考试报名 1700 元 鸿鹄论坛： 188 艾迪飞论坛 are working in a data center environment and are assigned the address range asked to develop an IP addressing plan to allow the maximum number of subs with as many as 30 hosts IP address range meets these requirements? A. B. C. D. E. QUESTION 435 Which three statements accurately describe layer 2 Ether switches?(choose three) A. Microsegmentation decreases the number of collisions on the work. B. if a switch receives a frame for an unkown destination,it uses ARP to resolve the address. C. Spanning Tree Protocol allows switches to automatically share vlan information. D. In a properly functioning work with redundant switched paths,each switched aegment will contain one root bridge with all its ports in the forwarding other switches in that broadcast domain will have only one root port. E. Establishing vlans increases the number of broadcast domains. F. Switches that are configured with vlans make forwarding decisions based on both layer 2 and layer 3 address information. QUESTION 436 Refer to the Lakside Company has the interwork in the administrator would like to reduce the size of routing table on the Central partial routing table entry in the Central route represents a route summary that represents the vlans in Phoenix but no additional subs? A. ,1 subs D [90/20514560] via ,6w0d,serial0/1 B. ,1 subs D [90/20514560] via ,6w0d,serial0/1 C. ,1 subs D [90/20514560] via ,6w0d,serial0/1 D. ,1 subs D [90/20514560] via ,6w0d,serial0/1 E. ,1 subs D [90/20514560] via ,6w0d,serial0/1 F. ,1 subs D [90/20514560] via ,6w0d,serial0/1 QUESTION 437 Refer to the two devices can be used to plete the connection between the WAN router at the customer site and the service provider? A. modem B. Frame Relay switch C. CSU/DSU D. WAN switch E. ISDN TA F. ATM switch QUESTION 438 Which PPP subprotocol negotiates authentication options? A. NCP B. LCP C. ISDN D. DLCI E. SLIP QUESTION 439 Which two data link layers are supported by cisco ios software for IPv6?(choose two) A. PPP B. FDDI C. Frame Relay PVC D. NBMA E. Frame Relay SVC QUESTION 440 Which term describes a spanningtree work that has all switch ports in either the blocking or forwarding state? A. redundant B. spanned C. provisioned D. converged QUESTION 441 Which two of these are characteristics of the protocol?(choose two) A. it is a layer 2 messaging protocol which maintains vlan configurations across work. B. it includes an 8bit field which specifies the priority of a frame. C. it is used exclusively for tagging vlan frames and dose not address work reconvergence following switched work topology changes. D. it modifies the frame header,and thus requires that the FCS be reputed. CCNA 考试报名 1700 元 191 艾迪飞论坛 it is a trunking protocol capable of carring untagged frames. QUESTION 442 Refer to the two statements are true of the interfaces on switch1?(choose two) A. A hub is connected directly to FastEther0/5 B. FastEther0/1 is configured as a trunk link. C. FastEther0/5 has statically assigned mac address D. Interface FastEther0/2 has been disable. E. Multiple devices are connected directly to FastEther0/1. F. FastEther0/1 is connected to a host with multiple work interface cards. QUESTION 443 Which two statements apply to dynamic access lists?(choose two) A. they offer simpler management in large interworks. B. you can control logging messages. C. they allow packets to be filtered based on upperlayer session information. D. you can set a timebased security policy. CCNA 考试报名 1700 元 192 艾迪飞论坛 they provide a level of security against spoofing. F. they are used to authenticate individual users. QUESTION 444 A work engineer wants to allow a temporary entry for a remote user with a specific usename and password so that the user can access the entire work over the ACL can be used? A. reflexive B. extended C. standard D. dynamic QUESTION 445 Which parameter or parameters are used to calculate OSPF cost in cisco routers? A. Bandwidth,Delay,and MTU B. Bandwidth C. Bandwidth and MTU D. Bandwidth , MTU,Reliability,Delay,and Load QUESTION 446 which mand is used to enable CHAP authentication whit PAP as the fallback method on a serial interface? A. (configif)authentication ppp。