CCNA考试流程及注意事项
CCNA认证的考试步骤详解(考前必知)

CCNA认证的考试步骤详解(考前必知)CISCO公司的职业资格证书CCNA在国外一向都有“通往高薪的直通车”的美誉,虽然在国内由于种种原因,CCNA已经不像前几年一样火爆,但其含金量还是为众多用人单位所重视,可以说,只要你手中有一份CCNA的有效证书(它的有效期为三年),那用人单位肯定会重点考察,成功的机率自然也就高出很多,然而更多的人对于CCNA根本不了解,或者只了解其中的一点点,尤其是关于考试的部分,更是大家所关心的,下面的内容就是告诉大家考试时的具体情况。
一、问卷调查考试系统为VUE开始的问卷调查内容略有不同,但是不用担心,统选B相对安全,选完一道点NEXT,一直到END。
因为B选项通常表示考生水平一般,抽取的考题也不会太难。
注意:其中有一个调查是问你是否已满18周岁,一定要选已满18周岁。
最后一个调查是问你是否同意CISCO的协议,这个一定要选“同意”,如果您选“不同意”,那么你也就不用考试了。
曾经有位仁兄选了不同意,结果题目一直没有出现,一问考场,人家解释:你连CISCO的协议都不同意,你还考什么?不用考了。
要想再考,得再交一次考试费,重新注册这门考试。
协议过后,调查问卷页面右下角点END选项,考试系统自动开始从服务器抽取题目,题目前一天已由考试中心从澳洲下载完毕,暂存于服务器中。
数秒后,题目抽取完毕,考生可点START,正式考试开始。
二、正式考试同一考点同一天考同一科目的人,当天题目一般变化不会太大。
考试中,不允许标记和后退,一旦点击NEXT,则不可返回上一道试题修改。
题目为55-65道,中国是150分钟考试时间,1000分为满分,考到825分就通过。
考试时间很充足,第一次考试的人可能会紧张,其实只要准备充分,考试时间还是足够的,这一点可以放心。
题型多为客观选择题,单选或多选,一般选几个有提示,或告诉你选所有认为对的答案。
接下来是实验题,比如:让你使用相关命令,使网络配通,先在各个路由器上show run, 查看命令是否完整。
CCNA(200-120)考试个人笔记及注意事项

01CCNA考试个人笔记1.选择题1.交换1.二层交换机:分割减少冲突,这里不是冲突域;收到未知的帧将会泛洪;2.MAC地址的作用:在二层唯一确定一台设备;使同一网络的不同设备可以通信;3.IEEE802.3标准规定了以太网的物理层和数据链路层的MAC子层;4.在交换机新建一个vlan,等于增加了一个广播域,冲突域的个数不变;5.vlan的作用:逻辑微分组、安全性、增加广播域;路由器一个接口是一个广播域,一个vlan也是一个广播域;交换机一个接口是一个冲突域;集线器的所有接口都在一个冲突域中;6.要想远程管理交换机,需要在交换机上配置ip default-gateway和interface vlan;7.查看Trunk的命令:show interface trunk和show interface switchport;8.交换机为什么从不学习广播地址?因为广播地址永远不会成为一个帧的源地址;9.Trunk链路的模式有auto、on和desirable;auto:不会主动发DTP信息;on:强制成为trunk,也主动发DTP信息;desirable:DTP主动模式,发DTP和对方协商;一端已经设置为auto模式,另一端必须设置为desirable模式才能协商成trunk;10.RSTP的优点:能够减少汇聚时间;比STP增加端口角色alternate和backup;在点到点链路提供比STP更快的传输和转发;11.VLAN的特点:微分段、安全性、灵活性;一个VLAN=一个广播域=逻辑网段(子网);Trunk协议有两种,一种是通用的802.1Q协议,一种是cisco专用的ISL协议;12.VTP管理VLAN的范围是1~1005,而可以修改的VLAN范围是2~1002;13.要实现VLAN间路由,有三种接口需要配置:Access接口、Trunk接口、SVI接口;14.802.1Q native vlan是不做标记的,所以在trunk两边的native需要一致;15.哪一个环境下交换机在vlan出现多个相同的单播帧?拓扑中有不合适的冗余;in an improprely implemented redundant topology;16.EtherChannel中两个端口需要speed一致;在EtherChannel中,端口上那一项参数可以配置不一样?DTP negotiation settings;2.路由1.路由器的TTL值默认是255;2.距离矢量协议:周期性向邻居广播整个路由表;4.EIGRP建立邻居关系必须满足本个条件:收到Hello或ACK、具有匹配的As号、具有相同的度量(K值);默认情况下,EIGRP是不支持VLSM的,我们可以通过关闭EIGRP的自动汇总来让EIGRP 支持VLSM;3.OSPF为什么要划分区域:减少路由表大小、限制LSA的扩散、加快OSPF收敛速度、增加OSPF稳定性;OSPF的BR的选举:优先级+RouterID;链路状态协议的特点:提供查看拓扑的命令,show ip ospf database;计算最短路径;利用触发更新;邻居之间只能交换LSA,但不能交换路由信息;4.OSPF的进程号仅仅具有本地意义,进程号不同不影响邻居关系的建立;使用单区域OSPF的好处:减少了LSA的种类,不需要虚电路;5.哪一个OSPF命令可以把所有端口划分进area 0?network 0.0.0.0 255.255.255.255 area 06.PPP在进行认证配置的时候,用户名要是对端的用户名,但是password要是两边共享的password;3.综合1.CSU/DSU是用于连接终端和数字专线设备,Modem用于数字信号和模拟信号的转换,两者都属于DCE设备;路由器一般属于DTE设备;A CSU/DSU converts digital signals from a router to leased line.A modem convert digital signals from a router to a phone line.2.在半双工网络中才存在冲突域;3.Ipv6的任意播:closet、nearest、same dress for mutiple devices;one-to-one of nearest;4.查看CPU利用率:show process;5.默认网关的配置方法:ip route 0.0.0.0 0.0.0.0 s0/1ip default-network 0.0.0.06.反掩码加1就是块大小,块大小减1就是反掩码;7.IOS的存放位置只能是自身的flash或TFTP server中;8.网络工程师想要允许一个临时与一个特定的username远程用户和密码,这样用户可以访问整个网络,which ACL可以使用?动态ACL;9.静态ACL:一直在NA T表中;允许来自外部的链接;10.哪一个命令可以验证哪些接口受到了ACL的影响?show ip interface;show ip access-list,显示访问控制列表;show access-lists,显示当前所有ACL的内容;show interface [int],查看某个接口的物理层和数据链路层的信息,如MAC地址,封装方式等;show ip interface [int],提供路由器接口的第三层配置信息,如接口状态,IP地址,访问控制列表等;11.show interface fa0/1,出现错误报文,可能是因为双工不匹配或者链路状态不稳定等因素造成的;12.DHCP检测到地址冲突,会把这个地址移出地址池,这个地池将不再分配,直到管理员解决冲突;2.拖图题1. show ip interface如:FastEthernet0/0 is up, line protocol is down (disabled)第一个up/down涉及物理层,第二个up/down涉及数据链路层(clock rate或者封装问题)2. show interfaces [int] 查看的是某个interface的物理层和数据链路层的信息,它给出了硬件地址,逻辑地址和封装方式的信息。
CCC认证注意事项

CCC认证注意事项CCNA(Cisco Certified Network Associate)认证是一个网络技术认证方案,由Cisco公司提供。
拥有CCNA认证可以证明技术人员具有在交换机和路由器等网络设备上配置、维护和故障排除的能力。
为了成功通过CCNA认证,考生需要注意以下事项:1.不要忽视基础知识:CCNA认证的考试涵盖了广泛的网络技术内容,包括网络基础、网络协议、IP地址分配、网络拓扑结构等。
在准备考试时,不要忽视这些基础知识的学习和掌握。
2.熟悉考试内容:CCNA认证考试主要分为两个部分,即理论考试和实践考试。
理论考试主要测试考生对网络技术的理解和应用能力,实践考试则要求考生在真实的网络环境中配置和故障排除。
在备考时,要详细了解考试内容和要求,合理安排备考计划。
3.选择合适的学习材料:市面上有很多CCNA认证的学习材料,包括教材、培训课程和在线资源等。
考生可以根据自己的学习习惯和需求选择适合的学习材料,提高学习效果。
5.参加培训课程:如果自学能力较弱或者时间紧迫,考生可以选择参加正规的培训课程。
培训机构通常会提供专业的教学和实验环境,能够帮助考生迅速提升自己的技术水平。
6.动手实践:CCNA认证考试的实践部分要求考生在实际网络环境中配置路由器和交换机、建立链路和故障排除。
因此,考生在备考期间应尽量多做实验,通过实际操作来巩固和应用所学知识。
7.制定合理的备考计划:备考CCNA认证需要一定的时间和精力投入,考生应该合理安排备考计划,合理分配学习时间,避免临近考试时才赶鸭子上架。
8.多做练习题:练习题是检验自己掌握程度和发现知识漏洞的重要方式,考生可以多做一些练习题来巩固所学知识。
9.关注官方更新:网络技术不断发展,考试内容也会随之更新。
考生应关注官方网站和论坛等渠道,及时了解认证考试的最新消息和变动,确保备考的准确性。
10.提前了解考点:考试中会有一些重点和难点的考点,考生可以提前了解这些考点,并且着重学习和复习,增加通过考试的几率。
CCNA考试注意事项

CCNA考试注意事项1、准备好证件。
其中一个证件是身份证,另外一个证件可以是学生证、驾照或信用卡或护照或港澳通行证或工作证。
还要有俩证件的复印件,如果考场没有复印机的话需要自带。
2、至少要要提前半小时到达考场,因为还需要照相、签名一类的事情。
早去可以早考,假如你约的10点考,9点时没人考,你就可以9点考,但你10点半去,他们就有理由让你不考。
3、进考场前会让你把东西放外面,例如手机、资料。
给你一块塑料纸板、油笔打草。
只能写,不能擦,如果写满了,举手示意,再换新的。
他们会全程监控,你一举手他们就会看到。
4、考试开始前有调查问卷,随便选,一般选B合适。
但问满不满18岁,有YES ,NO选项,务必选YES,问同不同意协议,有YES ,NO选项务必选YES。
请考生切记,遇到不明白的举手问考场管理员。
5、随后还有一些调查问卷(可能有时也没有),问你学习思科多长时间,预计考试用多长时间等等6、然后开始考试,一共50道题左右,三道实验题,1-3道拖图题,剩下的选择题。
最好一个小时左右交卷。
不要交的太早,因为大家看过题库,题库里的选择题是原题一模一样的,包括选项的顺序,答案是正确的,选择题都是秒杀的,交太早的话思科会复查的。
7、考试只能往下做,只要点了NEXT键后,就不能上翻检查修改。
此题没做好,切记不要随便点NEXT,不会的也不要拖太长时间。
8、实验题IP什么会有变化,但题型跟题库里提到的是一样的。
接口也可能会变。
切忌不能硬背。
9、拖图题,计算子网掩码的有的拖图题是把左边IP地址拖到右边图中相应的位置上,考试时IP地址肯定会有变化,题型是完全一样的,这样的拖IP地址的拖图题务必理解了。
10、实验题是FLASH性质的,比如可能做到第3题或第一题就随机出来个实验题,有的时候实验题出来稍慢一点点,别急着还没出来还没做实验题就点NEXT那样没做实验就过去了,请考生留意。
实验题是按步骤给分的,实验题敲完命令别忘了用命令保存实验,要不白做了都。
CCNA考试报名流程手册

考生报名用户手册1•思科会发一封邮件确认邮箱有效性(报名考试的考生都会收到这封邮件)操作步骤1. 打开邮件名字为“ Cisco Exam Registratio n and EmailValidatio n ” 的邮件2. 确认你的姓名,课程信息,以及邮箱地址(参考以下例子). 3•点击链接确认并激活邮箱_______________ EMAIL邮件描述Hello Wenju Ai, 你的姓名You are receiv ing this email because you have registeredfor a Cisco training course and certification exam through an authorized Cisco Lear ning Part ner.By verify ing your email address you ack no wledge your participati on in the bun dle program, and accepta nee to be contacted by Cisco and/or the partners of Cisco to receive exam eligibility no tificatio ns.Registrati on Details:Can didate Name: Wenju AiRegisteri ng CLSP: Beiji ng Ambow On li ne SoftwareCLSP Course Name: CCNACisco Course Name: **Ch in ese** In terc onn ect ing Cisco Networki ng Devices Part 1 (ICND1),**Chi nese**In terco nn ect ing Cisco Networki ng Devices Part 2 (ICND2) Exam Name: Cisco Certified Network AssociateBy click ing the URL below you are:* Validat ing your email address* Confirming your registration for this authorized trai ning program* Validating your information for an exam opportunity with Cisco Test Delivery Part nerPlease click the following link to verify your email address: /lcclsp/verify.do?reg=14050&veri= MPBEQAQZBGJS104888LVOBMOUXNBB YTha nk You,Learni ng@Cisco2.思科会发来第二封邮件(所有考生都会收到这样一封邮件)操作步骤1. 打开一个邮件名为“New Account Activation ”2. 确认你的姓名3•点击邮件中的链接地址EMAIL ExampleDear Wenju Ai,你的姓名Y our new CSCO ID is: CSCO11713192Your user log in to access the Cisco Certificatio n Track ing System has bee n created.To activate your acco unt, please go to/ciscoYour account authorization code is: s9JJ7EsyPlease note that the account activation code will expire on01/21/2010.If you cannot log in, please visit Certification Online Support at /go/certsupport to view our Instant Answers or request assistance.Regards,Cisco Career CertificationsPowered by the Integral7 Credential Bureau ()点击完邮件中的 /cisco 看到以下页面如果已经有 CCOD 的考生,请点击“Login with ID ”,将看到以下页面链接后,将 AMD cvorrs 3AEER t£flTF£AT£fi£ 说PAIBS Certification Tracking SystemWckome to the Cimo Career Ceftificalioni Trnfting SfstH-m- CERTFC*DM RE 筑 URGE 弓 ■Zi ■巧冒«RTT1Q ATIOH 也卯 G HY5Tr ・ Hie Cartifitirwiong Syalamia now 啣 tfHhg C IBCD "開別晦 and can be «ce$Be{j by your CiBtD comi 呛n O 讯❷ Id sc 闆朋 Ihfl CefliflcfflH>n Treckxifl 曲 muM hswe B 口他 com or6"羽I 碉呼 C«WQ com p 帕舟Ow Ihts ■& 如9 If 仙 艸II 愉 田离 粉耳曲C»K4皿軸啊 帥4 何 lacking wrlh H14 诃皆 L4#n ID€eritlk«»n TrMHIng Syvhim Tw<1 <1。
思科考试CCNA

CCNA(1)适用班级:CCNA注意事项:1.在试卷的标封处填写姓名和班级2.考试时间共120分钟3.答案写在答题卡上1. What is the maximum number of IP addresses that can be assigned to hosts on a local subnetthat uses the subnet maskA. 14B. 15C. 16D. 30E. 31F. 622. You have a network that needs 29 subnets while maximizing the number of host addressesavailable on each subnet. How many bits must you borrow from the host field to provide thecorrect subnet maskA. 2B. 3C. 4D. 5E. 6F. 73. What is the subnetwork address for a host with the IP address The network address of provides how many subnets and hostsA. 7 subnets, 30 hosts eachB. 7 subnets, 2,046 hosts eachC. 7 subnets, 8,190 hosts eachD. 8 subnets, 30 hosts eachE. 8 subnets, 2,046 hosts eachF. 8 subnets, 8,190 hosts each5. Which two statements describe the IP address 10.16.3.65/23 (Choose two.)A. The subnet address is 10.16.3.0 The lowest host address in the subnet is 10.16.2.1 The last valid host address in the subnet is 10.16.2.254 The broadcast address of the subnet is 10.16.3.255 The network is not subnetted.6. If a host on a network has the address what is the subnetwork this hostbelongs toA. On a VLSM network, which mask should you use on point-to-point WAN links in order toreduce the waste of IP addressesA. /27B. /28C. /29D. /30E. /318. What is the subnetwork number of a host with an IP address of You have an interface on a router with the IP address of Including the routerinterface, how many hosts can have IP addresses on the LAN attached to the router interfaceA. 6B. 8C. 30D. 62E. 12610. You need to configure a server that is on the subnet The router has the firstavailable host address. Which of the following should you assign to the serverA. You have an interface on a router with the IP address of What is thebroadcast address the hosts will use on this LANA. You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classfulsubnet mask would you useA. A network administrator is connecting hosts A and B directly through their Ethernet interfaces,as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can bedone to provide connectivity between the hosts (Choose two.)A. A crossover cable should be used in place of the straight-through cable.B. A rollover cable should be used in place of the straight-through cable.C. The subnet masks should be set to A default gateway needs to be set on each host.E. The subnet masks should be set to Address: Address: Cable164 Chapter 3 Subnetting, VLSMs, and Troubleshooting TCP/IP14. If an Ethernet port on a router were assigned an IP address of what wouldbe the valid subnet address of this hostA. Using the following illustration, what would be the IP address of E0 if you were using theeighth subnet The network ID is and you need to use the last available IPaddress in the range. The zero subnet should not be considered valid for this question.A. Using the illustration from the previous question, what would be the IP address of S0 if you wereusing the first subnet The network ID is and you need to use the last availableIP address in the range. Again, the zero subnet should not be considered valid for this question.A. Which configuration command must be in effect to allow the use of 8 subnets if the Class C subnet mask is Router(config)#ip classlessB. Router(config)#ip version 6C. Router(config)#no ip classfulD. Router(config)#ip unnumberedE. Router(config)#ip subnet-zeroF. Router(config)#ip all-nets18. You have a network with a subnet of Which is the valid host addressA. Your router has the following IP address on Ethernet0: Which of the following can be valid host IDs on the LAN interface attached to the router (Choose two.)A. To test the IP stack on your local host, which IP address would you pingA. 1.0.0.127C. You type show running-config and get this output:[output cut]Line console 0Exec-timeout 1 44Password 7098C0BQRLogin[output cut]What do the two numbers following the exec-timeout command meanA. If no command has been typed in 44 seconds, the console connection will be closed.B. If no router activity has been detected in 1 hour and 44 minutes, the console will be locked out.C. If no commands have been typed in 1 minute and 44 seconds, the console connection willbe closed.D. If you’re connected to the router by a Telnet connection, input must be detected within 1 minute and 44 seconds or the connection will be closed.22. You need to find the broadcast address used on a LAN on your router. What command willyou type into the router from user mode to find the broadcast addressA. show running-configB. show startup-configC. show interfacesD. show protocols23. You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you useA. replace run startB. copy run startC. copy start runD. reloadReview Questions 24324. Which command will show you whether a DTE or a DCE cable is plugged into serial 0A. sh int s0B. sh int serial 0C. show controllers s 0D. show serial 0 controllers25. What keystroke will terminate setup modeA. Ctrl+ZB. Ctrl+^C. Ctrl+CD. Ctrl+Shift+^26. You set the console password, but when you display the configuration, the password doesn’t show up; it looks like this:[output cut]Line console 0Exec-timeout 1 44Password 7098C0BQRLogin[output cut]What cause the password to be stored like thisA. encrypt passwordB. service password-encryptionC. service-password-encryptionD. exec-timeout 1 4427. Which of the following commands will configure all the default VTY ports on a routerA. Router#line vty 0 4B. Router(config)#line vty 0 4C. Router(config-if)#line console 0D. Router(config)#line vty all28. Which of the following commands sets the secret password to CiscoA. enable secret password CiscoB. enable secret ciscoC. enable secret CiscoD. enable password Cisco244 Chapter 4 Cisco’s IOS and Security Device Manager29. If you wanted administrators to see a message when logging into the router, which command would you useA. message banner motdB. banner message motdC. banner motdD. message motd30. How many simultaneous Telnet sessions does a Cisco router support by defaultA. 1B. 2C. 3D. 4E. 5F. 631. What command do you type to save the configuration stored in RAM to NVRAMA. Router(config)#copy current to startingB. Router#copy starting to runningC. Router(config)#copy running-config startup-configD. Router#copy run startup32. You try to telnet into SFRouter from router Corp and receive this message:Corp#telnet SFRouterTrying SFRouter (10.0.0.1)…OpenPassword required, but none set[Connection to SFRouter closed by foreign host]Corp#Which of the following sequences will address this problem correctlyA. Corp(config)#line console 0B. SFRemote(config)#line console 0C. Corp(config)#line vty 0 4D. SFRemote(config)#line vty 0 433. Which command will delete the contents of NVRAM on a routerA. delete NVRAMB. delete startup-configC. erase NVRAMD. erase startReview Questions 24534. What is the problem with an interface if you type show interface serial 0 and receive the following messageSerial0 is administratively down, line protocol is downA. The keepalives are different times.B. The administrator has the interface shut down.C. The administrator is pinging from the interface.D. No cable is attached.35. Which of the following commands displays the configurable parameters and statistics of all interfaces on a routerA. show running-configB. show startup-configC. show interfacesD. show versions36. If you delete the contents of NVRAM and reboot the router, what mode will you be inA. Privileged modeB. Global modeC. Setup modeD. NVRAM loaded mode37. You type the following command into the router and receive the following output: Router#show serial 0/0^% Invalid input detected at ‘^’marker.Why was this error message displayedA. You need to be in privileged mode.B. You cannot have a space between serial and 0/0.C. The router does not have a serial0/0 interface.D. Part of the command is missing.38. You type Router#sh ru and receive an % ambiguous command error. Why did you receivethis messageA. The command requires additional options or parameters.B. There is more than one show command that starts with the letters ru.C. There is no show command that starts with ru.D. The command is being executed from the wrong router mode.246 Chapter 4 Cisco’s IOS and Security Device Manager39. Which of the following commands will display the current IP addressing and the layer 1 and2 status of an interface (Choose three.)A. show versionB. show protocolsC. show interfacesD. show controllersE. show ip interfaceF. show running-config40. What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive the following messageSerial1 is down, line protocol is downA. Physical layerB. Data Link layerC. Network layerD. None; it is a router problem.41. What does the command o/r 0x2142 provideA. It is used to restart the router.B. It is used to bypass the configuration in NVRAM.C. It is used to enter ROM Monitor mode.D. It is used to view the lost password.42. Which command will copy the IOS to a backup host on your networkA. transfer IOS to copy run startC. copy tftp flashD. copy start tftpE. copy flash tftp43. You are troubleshooting a connectivity problem in your corporate network and want to isolate the problem. You suspect that a router on the route to an unreachable network is at fault.What IOS user exec command should you issueA. Router>pingB. Router>traceC. Router>show ip routeD. Router>show interfaceE. Router>show cdp neighbors44. You copy a configuration from a network host to a router’s RAM. The configuration looks correct, yet it is not working at all. What could the problem beA. You copied the wrong configuration into RAM.B. You copied the configuration into flash memory instead.C. The copy did not override the shutdown command in running-config.D. The IOS became corrupted after the copy command was initiated.45. A network administrator wants to upgrade the IOS of a router without removing the image currently installed. What command will display the amount of memory consumed by the currentIOS image and indicate whether there is enough room available to hold both the currentand new imagesA. show versionB. show flashC. show memoryD. show buffersE. show running-config46. The corporate office sends you a new router to connect, but upon connecting the console cable,you see that there is already a configuration on the router. What should be done before a new configuration is entered in the routerA. RAM should be erased and the router restarted.B. Flash should be erased and the router restarted.C. NVRAM should be erased and the router restarted.D. The new configuration should be entered and saved.47. Which command loads a new version of the Cisco IOS into a routerA. copy flash ftpB. copy ftp flashC. copy flash tftpD. copy tftp flash48. Which command will show you the IOS version running on your routerA. sh IOSB. sh flashC. sh versionD. sh running-config49. What should the configuration register value be after you successfully complete the password recovery procedure and return the router to normal operationA. 0x2100B. 0x2101C. 0x2102D. 0x214250. You save the configuration on a router with the copy running-config startup-configcommand and reboot the router. The router, however, comes up with a blank configuration.What can the problem beA. You didn’t boot the router with the correct command.B. NVRAM is corrupted.C. The configuration register setting is incorrect.D. The newly upgraded IOS is not compatible with the hardware of the router.E. The configuration you save is not compatible with the hardware.51. If you want to have more than one Telnet session open at the same time, what keystroke combination would you useA. Tab+spacebarB. Ctrl+X, then 6C. Ctrl+Shift+X, then 6D. Ctrl+Shift+6, then X52. You are unsuccessful in telnetting into a remote device. What could the problem be (Choose two.)A. IP addresses are incorrect.B. Access control list is filtering Telnet.C. There is a defective serial cable.D. The VTY password is missing.53. What information is displayed by the show hosts command (Choose two.)A. Temporary DNS entriesB. The names of the routers created using the hostname commandC. The IP addresses of workstations allowed to access the routerD. Permanent name-to-address mappings created using the ip host commandE. The length of time a host has been connected to the router via Telnet54. Which three commands can be used to check LAN connectivity problems on a router(Choose three.)A. show interfacesB. show ip routeC. tracertD. pingE. dns lookups55. You telnet to a router and make your necessary changes; now you want to end the Telnet session. What command do you type inA. closeB. disableC. disconnectD. exit56. You telnet into a remote device and type debug ip rip, but no output from the debug command is seen. What could the problem beA. You must type the show ip rip command first.B. IP addressing on the network is incorrect.C. You must use the terminal monitor command.D. Debug output is sent only to the console.57. Which command displays the configuration register settingA. show ip routeB. show boot versionC. show versionD. show flash58. You need to gather the IP address of a remote switch that is located in Hawaii. What can youdo to find the addressA. Fly to Hawaii, console into the switch, then relax and have a drink with an umbrella in it.B. Issue the show ip route command on the router connected to the switch.C. Issue the show cdp neighbor command on the router connected to the switch.D. Issue the show ip arp command on the router connected to the switch.E. Issue the show cdp neighbors detail command on the router connected to the switch.59. You have your laptop directly connected into a router’s Ethernet port. Which of the following are among the requirements for the copy flash tftp command to be successful (Choose three.)A. TFTP server software must be running on the router.B. TFTP server software must be running on your laptop.C. The Ethernet cable connecting the laptop directly into the router’s Ethernet port mu st bea straight-through cable.D. The laptop must be on the same subnet as the router’s Ethernet interface.E. The copy flash tftp command must be supplied the IP address of the laptop.F. There must be enough room in the flash memory of the router to accommodate the file tobe copied.60. The configuration register setting of 0x2102 provides what function to a routerA. Tells the router to boot into ROM monitor modeB. Provides password recoveryC. Tells the router to look in NVRAM for the boot sequenceD. Boots the IOS from a TFTP serverE. Boots an IOS image stored in ROM61. A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication sessionA. Send a different source port number.B. Restart the virtual circuit.C. Decrease the sequence number.D. Decrease the window size.62. Which fields are contained within an IEEE Ethernet frame header (Choose two.)A. Source and destination MAC addressB. Source and destination network addressC. Source and destination MAC address and source and destination network addressD. FCS field63. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment (Choose two.)A. SwitchB. NICC. HubD. RepeaterE. RJ45 transceiver64. Segmentation of a data stream happens at which layer of the OSI modelA. PhysicalB. Data LinkC. NetworkD. Transport65. Which of the following describe router functions (Choose four.)A. Packet switchingB. Collision preventionC. Packet filteringD. Broadcast domain enlargementE. Internetwork communicationF. Broadcast forwardingG. Path selection66. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.A. 3, 3, 1, 7B. 3, 2, 1, noneC. 3, 2, 1, 7D. 2, 3, 1, 7E. 3, 3, 2, none67. When data is encapsulated, which is the correct orderA. Data, frame, packet, segment, bitB. Segment, data, packet, frame, bitC. Data, segment, packet, frame, bitD. Data, segment, frame, packet, bit68. Why does the data communication industry use the layered OSI reference model (Choose two.)A. It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.B. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.C. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers.D. It encourages industry standardization by defining what functions occur at each layer ofthe model.E. It provides a framework by which changes in functionality in one layer require changes inother layers.69. What are two purposes for segmentation with a bridgeA. To add more broadcast domainsB. To create more collision domainsC. To add more bandwidth for usersD. To allow more broadcasts for users70. Which of the following are unique characteristics of half-duplex Ethernet when compared tofull-duplex Ethernet (Choose two.)A. Half-duplex Ethernet operates in a shared collision domain.B. Half-duplex Ethernet operates in a private collision domain.C. Half-duplex Ethernet has higher effective throughput.D. Half-duplex Ethernet has lower effective throughput.E. Half-duplex Ethernet operates in a private broadcast domain.58 Chapter 1 Internetworking71. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you useA. Thicknet coaxB. Thinnet coaxC. Category 5 UTP cableD. Fiber-optic cable72. Acknowledgments, sequencing, and flow control are characteristics of which OSI layerA. Layer 2B. Layer 3C. Layer 4D. Layer 773. Which of the following are types of flow control (Choose all that apply.)A. BufferingB. Cut-throughC. WindowingD. Congestion avoidanceE. VLANs74. Which of the following types of connections can use full duplex (Choose three.)A. Hub to hubB. Switch to switchC. Host to hostD. Switch to hubE. Switch to host75. What is the purpose of flow controlA. To ensure that data is retransmitted if an acknowledgment is not receivedB. To reassemble segments in the correct order at the destination deviceC. To provide a means for the receiver to govern the amount of data sent by the senderD. To regulate the size of each segment76. Which three statements are true about the operation of a full-duplex Ethernet networkA. There are no collisions in full-duplex mode.B. A dedicated switch port is required for each full-duplex node.C. Ethernet hub ports are preconfigured for full-duplex mode.D. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.E. The host network card and the switch port must be capable of operating in full-duplex mode. Review Questions 5977. What type of RJ45 UTP cable is used between switchesA. Straight-throughB. Crossover cableC. Crossover with a CSU/DSUD. Crossover with a router in between the two switches78. How does a host on an Ethernet LAN know when to transmit after a collision has occurred (Choose two.)A. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.B. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.C. You can improve the CSMA/CD network by adding more hubs.D. After a collision, the station that detected the collision has first priority to resend thelost data.E. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.F. After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data.79. What type of RJ45 UTP cable do you use to connect a PC’s COM port to a router or switch console portA. Straight-throughB. Crossover cableC. Crossover with a CSU/DSUD. Rolled80. You have the following binary number:What are the decimal and hexadecimal equivalentsA. 69/0x2102B. 183/B7C. 173/A6D. 83/0xC581. What are the decimal and hexadecimal equivalents of the binary number(Choose two.)A. 159B. 157C. 185D. 0x9DE. 0xD9F. 0x15982. Which of the following allows a router to respond to an ARP request that is intended for a remote hostA. Gateway DPB. Reverse ARP (RARP)C. Proxy ARPD. Inverse ARP (IARP)E. Address Resolution Protocol (ARP)83. You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you useto accomplish thisA. SMTPB. SNMPC. DHCPD. ARP84. What protocol is used to find the hardware address of a local deviceA. RARPB. ARPC. IPD. ICMPE. BootP85. Which of the following are layers in the TCP/IP model (Choose three.)A. ApplicationB. SessionC. TransportD. InternetE. Data LinkF. Physical86. Which class of IP address provides a maximum of only 254 host addresses per network IDA. Class AB. Class BC. Class CD. Class DE. Class E87. Which of the following describe the DHCP Discover message (Choose two.)A. It uses FF:FF:FF:FF:FF:FF as a layer 2 broadcast.B. It uses UDP as the Transport layer protocol.C. It uses TCP as the Transport layer protocol.D. It does not use a layer 2 destination address.8. Which layer 4 protocol is used for a Telnet connectionA. IPB. TCPC. TCP/IPD. UDPE. ICMP89. Which statements are true regarding ICMP packets (Choose two.)A. They acknowledge receipt of a TCP segment.B. They guarantee datagram delivery.C. They can provide hosts with information about network problems.D. They are encapsulated within IP datagrams.E. They are encapsulated within UDP datagrams.90. Which of the following services use TCP (Choose three.)A. DHCPB. SMTPC. SNMPD. FTPE. HTTPF. TFTP91. Which of the following services use UDP (Choose three.)A. DHCPB. SMTPC. SNMPD. FTPE. HTTPF. TFTP92. Which of the following are TCP/IP protocols used at the Application layer of the OSI model (Choose three.)A. IPB. TCPC. TelnetD. FTPE. TFTP93. The following illustration shows a data structure header. What protocol is this header fromA. IPB. ICMPC. TCPD. UDPE. ARPF. RARP94. If you use either Telnet or FTP, which is the highest layer you are using to transmit dataA. ApplicationB. PresentationC. SessionD. Transport95. The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI modelA. ApplicationB. Host-to-HostC. InternetD. Network Access96. Which two of the following are private IP addressesA. 12.0.0.1B. What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model A. ApplicationB. Host-to-HostC. InternetD. Network Access98. Which statements are true regarding ICMP packets (Choose two)A. ICMP guarantees datagram delivery.B. ICMP can provide hosts with information about network problems.C. ICMP is encapsulated within IP datagrams.D. ICMP is encapsulated within UDP datagrams.99. What is the address range of a Class B network address in binaryA. 01xxxxxxB. 0xxxxxxxC. 10xxxxxxD. 110xxxxx100. Which of the following protocols uses both TCP and UDPA. FTPB. SMTPC. TelnetD. DNS答题卡。
VIP版:新版NA考试注意事项

新版CCNA 考试流程及注意事项1,关于CCNA 备考CC NA 备考主要以题库为主,考试会考58-53道题目,其中实验题考3道,拖图题考1-5道,其余的是选择题。
选择题、拖图题考试跟题库是一样的,只是选项顺序会随机变化。
实验题考试的时候参数会有所变化,考查的知识点和做题的方法不变,新版CCNA 实验会考题库中的EIGRP 、ACL-1、ACL-2或ACL-3。
VTP 实验不考了。
2,关于CCNA 考试CCNA 考试总共1000分,825分通过,考试时间120分钟,英文版考试是140分钟。
思科给你300分的基础分,所以不会出现比300还低的分数,选择题每道14分左右,拖图题每道在15分左右,实验题3道一共150-200分左右。
实验分虽然占比重不是很大但是很重要,实验题是固定考3个,这分基本上是白送的。
不要有只是背选择题和拖图题就能pass 的想法。
NA 考试考场流程提前预约考试,确认之后考试当天提前去考场(提前去开始提前开始的,但是不能迟到),别忘了带两个有效证件,身份证是必须的,其他一个证件可以是驾照,学生证,暂住证等等。
在考场之后考场MM (也可能是GG )会拿去你的证件复印(也可自己带复印件),好了之后在VUE 上签名,照相等。
手续办完之后就可以近考场了,注意哦,不能携带任何东西特别是电子设备。
给你一块塑料纸板、油笔打草。
只能写,不能擦,如果写满了,举手示意,再换新的。
他们会全程监控,你一举手他们就会看到。
4、问卷调查考试前有三个调查必须要填写:(1)问你是否已满18周岁,一定要选已满18周岁(YES )。
(2)问你是否同意CISCO 的协议,这个一定要选“同意”,如果您选“不同意”,那么你也就不用考试了。
这题的选项需要往下拉右侧的滚动条才能看到。
(3)问是否同意思科给你发邮件。
这个问题可以选择(NO )。
考试完,已经出来成绩之后,还有一个调查问卷,这个根据自己情况填写即可,大体内容就是:从哪学习思科、考试用时间、对思科认证是否满意等一些无关痛痒的问题。
ccie考试流程

ccie考试流程
CCIE考试是全球企业级网络工程师认证中的最高级别。
它涵盖了多种专业知识和技能,如网络设计、部署、维护和安全等方面。
CCIE 考试流程包含以下几个步骤:
1.申请考试:首先需要在思科官网注册并申请考试,填写相关信息,选择考试时间和地点等。
2.支付费用:注册成功后,需要支付考试费用,通常为1500美元。
3.准备考试:考生需要充分准备考试内容,建议参加相关课程或自学。
考试范围广泛,包含多个领域,需要有扎实的网络知识和丰富的实践经验。
4.参加实验考试:CCIE考试是一项实验性考试,需要在考场上完成多项任务。
考试时间为8个小时,包括2小时的故障排除和6小时的设计和部署。
5.等待结果:考试结束后,考试结果将在2个月内公布。
考生可以在官网查询成绩,通过后将获得CCIE认证证书。
总之,CCIE考试是一项非常具有挑战性的考试,需要考生具备高超的技能和经验。
准备充分,扎实掌握网络知识和技能,相信一定能够在考试中获得好成绩。
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CCNA考试流程及注意事项
1,CCNA考试代号640—802,考试时间140分钟,总分1000分,通过分数825分,最新题库版本v104。
考试题型,选择、拖图题、实验题。
(1)选择题,是原题,看题库的时候要达到秒杀的地步。
(2)拖图题,计算子网掩码的有的拖图题,是把左边IP地址拖到右边图中相应的位置上,考试时IP地址肯定会有变化,题型是完全一样的,看题库的时候要理解掌握。
(3)实验题,题型跟题库一样,IP什么的会有变化。
注:一般考友的经验,用一到两周看四五遍题库是可以顺利通过考试的,但是题库一定要看到秒杀的程度,在鸿鹄报名考试,考前辅导是不收费的,只要报名考试就可以加入VIP群,有问题直接提,有讲师答疑。
考前有冲刺辅导,详情咨询鸿鹄客服。
2,考试报名流程(提前1-30天报名):
(1).考生填完考试报名表后,传给客服。
(2).考生拍下淘宝链接并且付款到淘宝。
(3).我们安排考试,安排好了通知考生去考点查询预约情况。
(4).考生去查询考试情况,打电话或者是亲自去考点查询都可以。
(这样说就可以:你好,是XX考点吗?我叫XX,我预约了咱考点X月X日的考试,你看看安排好了没有?)
(5).考生确认没问题了,考试当天去考试。
(6).考试后确认收货并付款给卖家,考后的注册我们都协助考生完成。
3,考试的时候需要携带两个证件:
第一证件:身份证军官证护照港澳通行证
第二证件:学生证(带钢印)信用卡医保卡暂住证工作证驾驶证注:最好提前半个小时就到达考点!
4,考前问卷调查,题目就是问问你准备考试多长时间,你看的什么教材,你是怎么知道cisco,你是自学还是培训,你家离考点路程多远,你文化程度,这些无所谓。
但问满不满18周岁,一定选YES,问同不同意CISCO协议,一定选“同意”。
有不明白的可以直接问考官。
协议过后,调查问卷页面右下角点END选项,考试系统自动开始从服务器抽取题目,题目前一天已由考试中心从澳洲下载完毕,暂存于服务器中。
考试前面有一段做题的动画演示,考生可以看,也可以不看,考生可以利用这点时间调整一下心情。
数秒后,题目抽取完毕,考生可点
START,正式考试开始。
5,第一次参加CCNA考试的考生,有些方面是必须要注意的:
在CCNA考试中不允许回头再做前面没做的题目,所以在点“NEXT”按钮的时候注意不要连续快速点击,以免发生连点了直接跳过一道题的情况。
实验题配置完成后一定要copy run start,否则会扣一部分。
接下来配置路由器的时候要切换到图形界面,然后点击和那台路由器通过配置线相连的计算机,进入对应路由器的配置模式,配置好路由器后要copy run start,所有的路由器都配置完后,点击“next”继续。
考试中的单选题是圆圈提示符,多选题是方框提示符,没有不定项选择题。
如果选多了会有错误框弹出来提示。
如果在考试中出现了死机或其他意外事件,建议马上和考场的工作人员联系交给他们处理。
一般情况下,计算机重启后,之前完成的考题会被记录。
CCNA考试时间是很充足的,不用担心,如果发生的意外事件浪费了很多时间,以至于影响了你的考试,可以和考场协商另外重新安排考试时间。
全部题目做完,选END EXAM,跳出试卷。
考完后当场出成绩,PASS,马上就会看到考试结果,显示Congratulations,呵呵,顺利通过考试了!
走出考场,考官会将打印好的成绩单,盖上钢印交给你,成绩单一定要保存好,这个是你通过的考试证据之一。
6,考后注册,需要在十天内去思科考试认证跟踪系统上注册,这样才能确保收到证书。
一般四到六周证书就能邮寄到您的手上。
这样整个考试流程就算是完成了,还有什么不明白的可以联系鸿鹄客服。
为了方便大家跟考友分享传阅《CCNA考试流程及注意事项》,特上传了PDF版本让大家下载。
题库战报交流超级群5587537,备考的考友可以加一下。